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Circuit Breakers (Low Capacity)（Ampere frame：50AF）
Configure
Specification/Dimensions
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Ampere frame
- 30AF or less
- 32AF
- 50AF
- 60AF
- 63AF
- 100AF to 199AF
- 200AF to 399AF
- 400AF or higher
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Rated block capacity AC 100 V(kA)
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Rated block capacity AC 200 V(kA)
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Rated block capacity AC 400 V(kA)
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Rated Braking Capacity at Rated Voltage of VDC 250(kA)
- 2.5
- 7.5
- 15
- 20
- 40
- 50
- 230
- AC 230 / 400
- AC 415 / DC 125
- AC 550
- AC 550 / DC 250
- AC 690
- AC 690 / DC 500
- acc. to IEC 60898-1 230 V AC
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acc. to IEC 60898-1 230 / 400 V AC
acc. to IEC 60898-1 230 V
acc. to IEC 60947-2 230 V AC -
acc. to IEC 60898-1 230 V AC
acc. to IEC 60947-2 230 V AC -
acc. to IEC 60898-1 230 V AC
acc. to IEC 60947-2 240 V AC -
acc. to IEC 60898-1 230 V AC
acc. to IEC 60947-2 400 V AC - acc. to IEC 60898-1 240 V
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acc. to IEC 60898-1 240 V AC
acc. to IEC 60898-1 240 V
acc. to IEC 60947-2 240 V AC -
acc. to IEC 60898-1 400 V AC
acc. to IEC 60898-1 400 V
acc. to IEC 60947-2 400 V AC -
acc. to IEC 60898-1 400 V AC
acc. to IEC 60898-1 400 V
acc. to IEC 60947-2 440 V AC -
acc. to IEC 60898-1 400 V AC
acc. to IEC 60947-2 400 V AC -
acc. to IEC 60898-1 400 V AC
acc. to IEC 60947-2 415 V AC -
acc. to IEC 60898-1 400 V AC
acc. to IEC 60947-2 690 V AC -
acc. to IEC 60898-1 400 V AC
acc. to IEC 60947-2 690 V AC - (acc. to IEC 60898-1) 415
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acc. to IEC 60898-1 415 V AC
acc. to IEC 60898-1 415 V
acc. to IEC 60947-2 415 V AC - acc. to IEC 60947-2 240 V
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Rated block capacity, voltages except VAC 100/200/400, VDC 250
- Available
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Number of Poles
- 1
- 2
- 3
- 4
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Rated Current(A)
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Mounting Method
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Connection Method
- Surface type
- Backside shape
- Embedded Type
- Insert shape
- Insert shape
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Representative Standard
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Dimension height(mm)
-
Dimension width(mm)
-
Dimension depth(mm)
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You can add up to 6 items per a category to the compare list.
Until 31/03/2025
Until 31/03/2025Molded Case Circuit Breakers (MCCB) NF-SV Series
MITSUBISHI
WS-V series NF-S type no-fuse breaker (general-purpose product).
[Features]
· Small, high performance, and economical no-fuse breaker.
· Connection method: front surface type, back surface type, embedded type, inserted type.
[Applications]
· No-fuse breaker, general-purpose product.From: ฿ 1,215.00 Special Price Days to Ship: 
Same day
Same day
-
You can add up to 6 items per a category to the compare list.
Until 31/03/2025
Until 31/03/2025Molded Case Circuit Breakers (MCCB) NF-CV/SV
MITSUBISHI
WS-V series no-fuse breaker for motor protection.From: ฿ 1,148.00 Special Price Days to Ship:
Same day
Same day
-
You can add up to 6 items per a category to the compare list.
Until 31/03/2025
Until 31/03/2025WS-V series No-fuse circuit breaker for control panel NF-FA series
MITSUBISHI
Smallest class of breakers in the world.
[Features]
· Vertical dimension 72 mm. Can be mounted to IEC 35 mm rail standard.
· Product lineup with same external shape for 30 to 50 A frames.
· Earth leakage breaker handles higher harmonics and surges.
· Can mount AL and AX vertical lead wire terminal block.
· Can perform simple back surface wiring / front plate mounting.
[Applications]
· Optimal for branch circuits for machinery.From: ฿ 2,360.00 Special Price Days to Ship:
Same day
Same day
-
You can add up to 6 items per a category to the compare list.
Until 31/03/2025
Until 31/03/2025G-TWIN Breaker BW Series AAG (32AF/50AF)
FUJI ELECTRIC
- G-TWIN Breaker BW Series AAG type from Fuji electric.
- Compact models with unified dimensions meeting UL489 480V requirements.
- Rated current is 3A to 800A.
- Conforming to international standard IEC/EN(CE)/GB(CCC)/JIS.
- Most accessories can be installed by the user
- No. of poles can be select 2 to 4 poles.
- AAG type is Line protection model, it can be select 3 frame sizes (32AF, 50AF and 100AF).
- Rated breaking capacity Icu/Ics (kA) at 440 V AC is 1.5kA.
- Rated insulation voltage Ui is 500 VAC.
- Tripping device is Thermal-magnetic.From: ฿ 1,000.00 Special Price Days to Ship:
Same day
Same day
-
You can add up to 6 items per a category to the compare list.
Until 31/03/2025
Until 31/03/2025Molded Case Circuit Breakers (MCCB) NF-SVF Series with accessories
MITSUBISHI
Mitsubishi low-voltage breaker contributing to building the future of electrical equipment.
Mitsubishi No-Fuse Breakers and Earth Leakage Circuit Breakers, meeting the needs of the market for over half a century.
Including the new WS-V series equipped with the latest breaker technology, various product ranges are available that address the needs of both the power incoming panel / distribution board market and machinery market.From: ฿ 2,972.00 Special Price Days to Ship:
Same day
Same day
-
You can add up to 6 items per a category to the compare list.
Until 31/03/2025
Until 31/03/2025Molded Case Circuit Breakers (MCCB) NF-FAU Series
MITSUBISHI
WS Series NF-F Type no-fuse breaker.
[Features]
· Small, high performance, and economical no-fuse breaker.
· UL and cUR compatible.
· NF30-FAU, NF50-FAU, NF50-FHU.
[Applications]
· No-fuse breaker, general-purpose product.From: ฿ 2,868.00 Special Price Days to Ship:
Same day
Same day
-
You can add up to 6 items per a category to the compare list.
Until 31/03/2025
Until 31/03/2025Molded Case Circuit Breakers (MCCB) NF-SVFU Series with accessories
MITSUBISHI
Mitsubishi low-voltage breaker contributing to building the future of electrical equipment.
Mitsubishi No-Fuse Breakers and Earth Leakage Circuit Breakers, meeting the needs of the market for over half a century.
Including the new WS-V series equipped with the latest breaker technology, various product ranges are available that address the needs of both the power incoming panel / distribution board market and machinery market.From: ฿ 6,410.00 Special Price Days to Ship:
Same day
Same day
-
You can add up to 6 items per a category to the compare list.
Until 31/03/2025
Until 31/03/2025Molded Case Circuit Breakers (MCCB) NF-HRV Series
MITSUBISHI
- MCCB (Molded Case Circuit Breakers) High performance class NF-HRV series from Mitsubishi electric. - Frame size is 50. - No. of pole can be select 2 or 3 poles. - Applicable for both AC/DC. - Rated ambient temperature 40°C. - Rated current can be select up to 50 A. - Rated insulation voltage (Ui) is 690 V - Mechanical duration (On/Off) is up to 25,000 times. - Electrical duration (On/Off) is up to 10,000 times. - Possible to reverse connection.From: ฿ 1,285.00 Special Price Days to Ship:
Same day
Same day
-
You can add up to 6 items per a category to the compare list.
Until 31/03/2025
Until 31/03/2025G-TWIN Breaker BW Series SAG (32AF/50AF)
FUJI ELECTRIC
- G-TWIN Breaker BW Series SAG type from Fuji electric.
- Compact models with unified dimensions meeting UL489 480V requirements.
- Rated current is 3 A to 400A.
- Conforming to international standard IEC/EN(CE)/GB(CCC)/JIS.
- Most accessories can be installed by the user
- No. of poles can be select 2 to 4 poles.
- SAG type is Line protection model, it can be select 7 frame sizes (32AF, 50AF, 63AF, 125AF, 160AF, 250AF and 400AF).
-Rated breaking capacity Icu/Ics (kA) at 440 V AC is 2.5kA (32AF), 7.5 kA (50AF, 63AF), 36KA (125AF, 160AF, 250AF and 400AF).
- Rated insulation voltage Ui is 690 VAC/ 250VDC.
- Tripping device is Thermal-magnetic.From: ฿ 1,316.67 Special Price Days to Ship:
Same day
Same day
-
You can add up to 6 items per a category to the compare list.
Until 31/03/2025
Until 31/03/2025G-TWIN Breaker BW Series EAG (50AF)
FUJI ELECTRIC
Small compact new series complying to international standards including IEC60947-2. EAGFrom: ฿ 1,150.00 Special Price Days to Ship:
Same day
Same day
-
You can add up to 6 items per a category to the compare list.
Until 31/03/2025
Until 31/03/2025WS-V Series NF-KC, MCCB for Power Distribution Board / Control Panel
MITSUBISHI
[Features]
・ It is suitable for power distribution board applications due to the agreement type dimensions for lamp power distribution boards, and also suitable for control panel applications due to IEC 35 mm rail standard support
・ No need for branch conductors, reducing the width of the board and the number of partsFrom: ฿ 2,360.00 Special Price Days to Ship:
Same day
Same day
-
You can add up to 6 items per a category to the compare list.
Until 31/03/2025
Until 31/03/2025G-TWIN Λ BW Series Circuit Breaker SBG (32AF/50AF)
FUJI ELECTRIC
Inheriting the philosophy of the G-TWIN Series, we have now released the G-TWIN Λ Series as a series of small breakers of 32 to 63 AF that meet the needs of the machine equipment and control panel markets.From: ฿ 2,466.67 Special Price Days to Ship:
61 Day(s)
61 Day(s)
-
You can add up to 6 items per a category to the compare list.
Until 31/03/2025
Until 31/03/2025Molded Case Circuit Breakers (MCCB) NF-S Series
MITSUBISHI
- Low-Voltage Circuit Breakers MCCB (Molded Case Circuit Breakers) NF-S series from Mitsubishi electric. - The molded case circuit breaker (MCCB) opens and closes a low voltage circuit and breaks the fault current (an overload current or short circuit current) automatically, to protect the wirings/conductors of the circuit. - MCCB (Molded Case Circuit Breakers) NF-S series is standard class type of circuit breaker. - Rated ambient temperature 40°C. - Number of poles is up to 4. - Rated current can be select up to 1,600 A.From: ฿ 2,972.00 Special Price Days to Ship:
72 Day(s)
72 Day(s)
-
You can add up to 6 items per a category to the compare list.
Until 31/03/2025
Until 31/03/2025G-TWIN Breaker BW Series RAGU (50AF)
FUJI ELECTRIC
- G-TWIN Breaker BW GLOBAL Series RAGU type from Fuji electric. - Compact models with unified dimensions meeting UL489 480V requirements. - Rated current is 15A to 250A. - Conforming to international standard IEC/EN/GB/JIS/UL/CSA. - Most accessories can be installed by the user - No. of poles can be select 2 to 4 poles. - RAGU type is Line protection model, it can be select 8 frame sizes (50AF, 63AF, 125AF, 160AF, 250AF, 400AF, 630AF and 800AF). -Rated breaking capacity Icu/Ics (kA) at 440 V AC is 10 kA (50AF, 63AF), 50KA (125AF, 160AF, 250AF, 400AF, 630AF and 800AF). - Rated insulation voltage Ui is 690 VAC/ 250VDC. - Tripping device is Thermal-magnetic.From: ฿ 4,341.66 Special Price Days to Ship:
61 Day(s)
61 Day(s)
-
You can add up to 6 items per a category to the compare list.
Until 31/03/2025
Until 31/03/2025High Cut-off Current, No-Fuse Breakers
MISUMI
It is a no-fuse breaker with a rated breaking capacity of 35 kA. You can easily install accessories with screws.From: ฿ 1,247.10 Special Price Days to Ship:
Same day
Same day
-
You can add up to 6 items per a category to the compare list.
Until 31/03/2025
Until 31/03/2025Molded Case Circuit Breakers (MCCB) NF-FA Series
MITSUBISHI
Mitsubishi low-voltage circuit breaker contributing to the future creation of electrical equipment.
Mitsubishi no-fuse breakers and earth leakage breakers that meet the needs of the market for over half a century.
Including WS-V series equipped with the latest breaker technology. Various product ranges are available to meet the needs of the distribution board and machinery market.From: ฿ 2,917.00 Special Price Days to Ship:
20 Day(s)
20 Day(s)
-
You can add up to 6 items per a category to the compare list.
Until 31/03/2025
Until 31/03/2025UL 489 Listed MCCB, UL Compliant Product
MITSUBISHI
- Low-Voltage Circuit Breakers MCCB (Molded Case Circuit Breakers) NF series from Mitsubishi electric. - The molded case circuit breaker (MCCB) opens and closes a low voltage circuit and breaks the fault current (an overload current or short circuit current) automatically, to protect the wirings/conductors of the circuit. - MCCB (Molded Case Circuit Breakers) NF series have 4 types available, NF-C (Economy type), NF-S (Standard type), NF-H (High-performance type) and NF-U (Current limiting-type ultra-breaker). - Rated ambient temperature 40°C. - Number of poles is up to 4. - Rated current can be select up to 440 A.From: ฿ 2,783.00 Special Price Days to Ship:
Same day
Same day
-
You can add up to 6 items per a category to the compare list.
Until 31/03/2025
Until 31/03/2025G-TWIN Breaker BW Series RBGU (50AF)
FUJI ELECTRIC
Inheriting the philosophy of the G-TWIN Series, we have now released the G-TWIN Λ Series as a series of small breakers of 32 to 63 AF that meet the needs of the machine equipment and control panel markets.From: ฿ 4,821.67 Special Price Days to Ship:
61 Day(s)
61 Day(s)
-
You can add up to 6 items per a category to the compare list.
Until 31/03/2025
Until 31/03/2025G-TWIN Breaker BW Series RAG (50AF)
FUJI ELECTRIC
- G-TWIN Breaker BW Series RAG type from Fuji electric.
- Compact models with unified dimensions meeting UL489 480V requirements.
- Rated current is 15A to 250A.
- Conforming to international standard IEC/EN(CE)/GB(CCC)/JIS.
- Most accessories can be installed by the user
- No. of poles can be select 2 to 4 poles.
- RAG type is Line protection model, it can be select 8 frame sizes (50AF, 63AF, 125AF, 160AF, 250AF, 400AF, 630AF and 800AF).
- Rated breaking capacity Icu/Ics (kA) at 440 V AC is 10 kA (50AF, 63AF), 50KA (125AF, 160AF, 250AF, 400AF, 630AF and 800AF).
- Rated insulation voltage Ui is 690 VAC/ 250VDC.
- Tripping device is Thermal-magnetic.From: ฿ 1,483.33 Special Price Days to Ship:
Same day
Same day
-
You can add up to 6 items per a category to the compare list.
Until 31/03/2025
Until 31/03/2025
G-TWIN Breaker BW Series HAG (50AF)
FUJI ELECTRIC
G-TWIN series HAG is a general molded case circuit breaker (MCCB) that protects electric wires from overcurrent. It is certified and has acquired domestic and international standards JIS, Electrical Appliance and Material Safety Law, IEC, EN (CE marking), and GB (CCC). MCCB can be applied to AC/DC circuits.From: ฿ 5,416.67 Special Price Days to Ship:
61 Day(s)
61 Day(s)
-
You can add up to 6 items per a category to the compare list.
Until 31/03/2025
Until 31/03/2025Molded Case Circuit Breakers (MCCB) NF-SV Series with accessories
MITSUBISHI
Mitsubishi low-voltage circuit breaker contributing to the future creation of electrical equipment.
Mitsubishi no-fuse breakers and earth leakage breakers that meet the needs of the market for over half a century.
Including WS-V series equipped with the latest breaker technology. Various product ranges are available to meet the needs of the distribution board and machinery market.From: ฿ 2,043.00 Special Price Days to Ship:
72 Day(s)
72 Day(s)
-
You can add up to 6 items per a category to the compare list.
Until 31/03/2025
Until 31/03/2025G-TWIN Breaker BW Series SAS (32AF/50AF)
FUJI ELECTRIC
It is a circuit breaker excluding the over-current trip element from a standard auto breaker. It is used as switchgear. SASFrom: ฿ 2,925.00 Special Price Days to Ship:
76 Day(s)
76 Day(s)
-
You can add up to 6 items per a category to the compare list.
Until 31/03/2025
Until 31/03/2025G-TWIN Breaker BW Series SAT (32AF/50AF)
FUJI ELECTRIC
The instantaneous trip loss current value is set higher than that of MCCBs for general wiring. Unwanted operation due to transformer excitation inrush current can be prevented.From: ฿ 3,075.00 Special Price Days to Ship:
76 Day(s)
76 Day(s)
-
You can add up to 6 items per a category to the compare list.
![ABS [N]□□C series (high breaking capacity type, without fuse) [ABS52C]](//th.misumi-ec.com/en/linked/material/el/LSI1/PHOTO/LSI1_75.jpg?$product_view_b$)
ABS [N]□□C series (high breaking capacity type, without fuse) [ABS52C]
LSIS
[Features]
· PSE-corresponding high reliability no fuse breaker.
· The rated cutoff capacity is as high as 35kA providing great relief.
· Rated current 15A to 100A enriches our lineup.
· Easy attachment of auxiliary equipment.
· It is a product compatible with CE marking through certification testing.From: ฿ 1,115.93 Days to Ship:
Same day
Same day
-
You can add up to 6 items per a category to the compare list.
G-TWIN Breaker BW Series EAL (Low Capacity)
FUJI ELECTRIC
[Features]
· It is a compact circuit breaker combining the functions of FAB and leakage protection relay (ELR) (there is no function of ELB).From: ฿ 5,873.33 Days to Ship:
30 Day(s)
30 Day(s)
-
You can add up to 6 items per a category to the compare list.
Until 31/03/2025
Until 31/03/2025Molded Case Circuit Breakers (MCCB) NF-FHU Series
MITSUBISHI
Mitsubishi low-voltage breaker contributing to building the future of electrical equipment.
Mitsubishi No-Fuse Breakers and Earth Leakage Circuit Breakers, meeting the needs of the market for over half a century.
Including the new WS-V series equipped with the latest breaker technology, various product ranges are available that address the needs of both the power incoming panel / distribution board market and machinery market.From: ฿ 3,373.00 Special Price Days to Ship:
72 Day(s)
72 Day(s)
-
You can add up to 6 items per a category to the compare list.
Until 31/03/2025
Until 31/03/2025G-TWIN Breaker BW Series SAM (32AF/50AF)
FUJI ELECTRIC
It is an automatic breaker / leakage circuit breaker combining overload protection of induction motor (direct starting) and overcurrent protection of electric wire. SAMFrom: ฿ 3,911.67 Special Price Days to Ship:
76 Day(s)
76 Day(s)
-
You can add up to 6 items per a category to the compare list.
![ABS series (distribution panel-type, no fuse) [ABS32FB]](//th.misumi-ec.com/en/linked/material/el/LSI1/PHOTO/222000491785_002.jpg?$product_view_b$)
ABS series (distribution panel-type, no fuse) [ABS32FB]
LSIS
[Features]
· No fuse breaker for distribution boards that is compact and space-saving.
· The distribution board type is compact and can be used for distribution boards.
· Substantial lineup of rated current from 3A to 100A.
· Height 96 mm, depth 60 mm, JIS agreement size.
· Easy attachment of auxiliary equipment.
· Passed testing, CE mark certified product.
· Types with a breaking capacity of 5kA or 10kA are available.
· 400V power supplies can also be used.From: ฿ 687.38 Days to Ship:
Same day
Same day
-
You can add up to 6 items per a category to the compare list.
Until 31/03/2025
Until 31/03/2025Molded Case Circuit Breakers (MCCB) NF-KC Series
MITSUBISHI
Mitsubishi low-voltage breaker contributing to building the future of electrical equipment.
Mitsubishi No-Fuse Breakers and Earth Leakage Circuit Breakers, meeting the needs of the market for over half a century.
Including the new WS-V series equipped with the latest breaker technology, various product ranges are available that address the needs of both the power incoming panel / distribution board market and machinery market.From: ฿ 6,495.00 Special Price Days to Ship:
72 Day(s)
72 Day(s)
-
You can add up to 6 items per a category to the compare list.
Circuit breaker with PH type plug-in unit (agreement type)
NITTO KOGYO
i power · agreement type circuit breaker with branch plug-in unit for F type, E type.From: ฿ 4,478.27 Days to Ship:
9 Day(s)
9 Day(s)
-
You can add up to 6 items per a category to the compare list.
D-Series Auto-Breaker for Electrical Work (Low-Capacity)
FUJI ELECTRIC
- Auto-Breaker for Electrical Work (Low-Capacity) D Series from Mitsubishi electric. - Sensitivity current switching type can be set up to 1000mA (125AF or more). - Auxiliary switch (W) and alarm switch (K) can be attached to all models. - Possible to select 2 or 3 poles. - 3P products which below 225AF are both wiring protection and induction motor protection products. - A terminal cover with a sealing screw is standard equipment for all models. - 60-225A frames come standard with crimp terminals.From: ฿ 2,291.67 Days to Ship:
61 Day(s)
61 Day(s)
-
You can add up to 6 items per a category to the compare list.
Until 31/03/2025
Until 31/03/2025Molded Case Circuit Breakers (MCCB) NF-NKC Series with accessories
MITSUBISHI
Mitsubishi low-voltage circuit breaker contributing to the future creation of electrical equipment.
Mitsubishi no-fuse breakers and earth leakage breakers that meet the needs of the market for over half a century.
Including WS-V series equipped with the latest breaker technology. Various product ranges are available to meet the needs of the distribution board and machinery market.From: ฿ 6,495.00 Special Price Days to Ship:
72 Day(s)
72 Day(s)
-
You can add up to 6 items per a category to the compare list.
G-TWIN Breaker BW Series EAG (50AF)
FUJI ELECTRIC
The instantaneous trip loss current value is set higher than that of MCCBs for general wiring. Unwanted operation due to transformer excitation inrush current can be prevented.From: ฿ 1,617.18 Days to Ship:
45 Day(s)
45 Day(s)
-
You can add up to 6 items per a category to the compare list.
Circuit Breaker for Distribution Board Compact Twin Series Auto Breaker (FAB) (Low Capacity)
FUJI ELECTRIC
- Circuit Breaker for Distribution Board Compact Twin Series from Fuji electric. - Frame size of compact twin series is 50AF. - 3 types of terminal structure are available, C type (Supply side: Screw type terminal, Load side: Screw type terminal), P type (Supply side: Plug-in type terminal, Load side: screw type terminal), Q type (Supply side: Plug-in type terminal, Load side: insertion type terminal). - No. of pole is 2 poles. - Rated current can select 3 values 15A, 20A and 30A.From: ฿ 985.00 Days to Ship:
31 Day(s)
31 Day(s)
-
You can add up to 6 items per a category to the compare list.
Until 31/03/2025
Until 31/03/2025G-TWIN Λ BW Series Circuit Breaker EBG (50AF)
FUJI ELECTRIC
Inheriting the philosophy of the G-TWIN Series, we have now released the G-TWIN Λ Series as a series of small breakers of 32 to 63 AF that meet the needs of the machine equipment and control panel markets.From: ฿ 1,966.67 Special Price Days to Ship:
61 Day(s)
61 Day(s)
-
You can add up to 6 items per a category to the compare list.
Until 31/03/2025
Until 31/03/2025G-TWIN Breaker BW Series AFC (32AF/50AF)
FUJI ELECTRIC
An auto breaker and leakage breaker which matches major dimensions with JIS agreement type circuit breakers for light distribution boards. AFCFrom: ฿ 2,218.33 Special Price Days to Ship:
76 Day(s)
76 Day(s)
-
You can add up to 6 items per a category to the compare list.
Until 31/03/2025From: ฿ 3,166.67 Special Price Days to Ship:
76 Day(s)
76 Day(s)
-
You can add up to 6 items per a category to the compare list.
Circuit breaker with PL type plug-in unit (agreement type)
NITTO KOGYO
i power · agreement type circuit breaker with branch plug-in unit for B type.From: ฿ 3,843.33 Days to Ship:
9 Day(s)
9 Day(s)
-
You can add up to 6 items per a category to the compare list.
NE circuit breaker (economy type) E series surface type
NITTO KOGYO
- NE circuit breaker (economy type) E series surface type from Nitto Kogyo - A breaker that automatically cuts off the electric path and protects wiring from damage when over current and short-circuits occur. - 9 frame sizes available. (50AF, 60AF, 100AF, 150AF, 225AF, 250AF, 400AF, 600AF and 800AF) - Connecting circuit by screw type terminal block. - Maximum rated insulation voltage: 690VAC / 250VDC - Applicable crimp terminal: R2-5～CB22-5S for 50AF, R2-6～CB22-6S (22-S6) for 60AF, R5.5-8～CB60-8 (8S) for 100AF, R22-8～CB60-8 (8S) for 150AF, R22-8～CB150-8 (8S) for 150AF and 250AF, R60-12～CB325-12 (12S) for 400AF, R100-12～CB325-12 (12S) for 600AF and 800AFFrom: ฿ 1,909.04 Days to Ship:
5 Day(s)
5 Day(s)
-
You can add up to 6 items per a category to the compare list.
NBE circuit breaker (economy type) E series recessed type
NITTO KOGYO
It is an embedded type circuit breaker.From: ฿ 4,448.79 Days to Ship:
5 Day(s)
5 Day(s)
-
You can add up to 6 items per a category to the compare list.
NBE, circuit breaker (economic form), E series, rear surface shape
NITTO KOGYO
It is a surface type circuit breaker.From: ฿ 3,178.91 Days to Ship:
5 Day(s)
5 Day(s)
-
You can add up to 6 items per a category to the compare list.
NE-N, circuit breaker (economic form) with simple 3 neutral wire phase failure protection, E series
NITTO KOGYO
[Features]A circuit breaker provided with open neutral protection of single-phase 3-wire system. [Specifications]A terminal cover, mounting screws, wood screws, sealing plate, terminal cover set screws, and crimp terminals are included.From: ฿ 3,275.67 Days to Ship:
9 Day(s)
9 Day(s)
-
You can add up to 6 items per a category to the compare list.
NE-S, circuit breaker (generic form), S series, front surface shape
NITTO KOGYO
It is a surface type circuit breaker.From: ฿ 3,910.60 Days to Ship:
9 Day(s)
9 Day(s)
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You can add up to 6 items per a category to the compare list.
Until 31/03/2025
Until 31/03/2025G-TWIN Breaker BW Series EAM (50AF)
FUJI ELECTRIC
[Features]
· Overload protection of induction motor and over-current protection of wire FAB, ELB; [EAM]From: ฿ 3,111.67 Special Price Days to Ship:
76 Day(s)
76 Day(s)
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You can add up to 6 items per a category to the compare list.
G-TWIN Breaker BW Series EAN (Low Capacity)
FUJI ELECTRIC
[Features]
· Protecting the circuit from over-voltage due to neutral open phase of single-phase 3-wire circuit FAB, ELB.From: ฿ 6,596.67 Days to Ship:
75 Day(s)
75 Day(s)
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You can add up to 6 items per a category to the compare list.
Until 31/03/2025
Until 31/03/2025G-TWIN Breaker BW Series EAT (50AF)
FUJI ELECTRIC
[Features]
· The instantaneous tripping current value is set higher than for general wiring FAB.
· It is possible to prevent unnecessary operation due to excitation inrush current of the transformer.From: ฿ 2,458.33 Special Price Days to Ship:
76 Day(s)
76 Day(s)
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You can add up to 6 items per a category to the compare list.
G-TWIN Breaker BW Series RAG (50AF)
FUJI ELECTRIC
[Features]
· General purpose auto breaker for over-current protection of wires (FAB). RAG Series.From: ฿ 7,925.00 Days to Ship:
75 Day(s)
75 Day(s)
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You can add up to 6 items per a category to the compare list.
Until 31/03/2025
Until 31/03/2025G-TWIN Breaker BW Series RAM (Low Capacity)
FUJI ELECTRIC
[Features]
· An auto breaker (FAB) for overload protection of induction motors and over-current protection on electrical wires.
· RAM series product with a rated current of50A or less.From: ฿ 5,123.33 Special Price Days to Ship:
61 Day(s)
61 Day(s)
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Wiring Circuit Breaker L Series (Low Capacity)
FUJI ELECTRIC
- Instantaneous trip fixed type MCCB (Molded Case Circuit Breakers) L series from Fuji electric. - Frame size of breaker is 50. - No. of poles is 3 poles. - Rated break capacity: 42 kA at 500 VAC, 50 kA at 440 VAC and 100 kA at 230 VAC. - Optional accessories (Sold separately): External control handle (BZ-V20C, BZ-N20B), Short terminal cover (BZ-TS20B-3, BZ-TB20B-3), Handle lock cover (BZ-L20C), Single hole flat terminal (BZ-S20B-503), Mechanical interlock (BZ-M120C-3, BZ-M220C-3, BZ-M320C-3). -Trip button available.From: ฿ 8,016.67 Days to Ship:
90 Day(s)
90 Day(s)
![ABS [N]□□C series (high breaking capacity type, without fuse) [ABS52C]](http://th.misumi-ec.com/en/linked/material/el/LSI1/PHOTO/LSI1_75.jpg?$product_view_b$)
![ABS series (distribution panel-type, no fuse) [ABS32FB]](http://th.misumi-ec.com/en/linked/material/el/LSI1/PHOTO/222000491785_002.jpg?$product_view_b$)
| Brand |
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| Product Series |
| CAD |
| From |
| Days to Ship |
| Ampere frame |
| Rated block capacity AC 100 V(kA) |
| Rated block capacity AC 200 V(kA) |
| Rated block capacity AC 400 V(kA) |
| Rated Braking Capacity at Rated Voltage of VDC 250(kA) |
| Rated block capacity, voltages except VAC 100/200/400, VDC 250 |
| Number of Poles |
| Rated Current(A) |
| Mounting Method |
| Connection Method |
| Representative Standard |
| Dimension height(mm) |
| Dimension width(mm) |
| Dimension depth(mm) |
You can add up to 6 items per a category to the compare list.  Until 31/03/2025 | You can add up to 6 items per a category to the compare list.  Until 31/03/2025 | You can add up to 6 items per a category to the compare list.  Until 31/03/2025 | You can add up to 6 items per a category to the compare list.  Until 31/03/2025 | You can add up to 6 items per a category to the compare list.  Until 31/03/2025 | You can add up to 6 items per a category to the compare list.  Until 31/03/2025 | You can add up to 6 items per a category to the compare list.  Until 31/03/2025 | You can add up to 6 items per a category to the compare list.  Until 31/03/2025 | You can add up to 6 items per a category to the compare list.  Until 31/03/2025 | You can add up to 6 items per a category to the compare list.  Until 31/03/2025 | You can add up to 6 items per a category to the compare list.  Until 31/03/2025 | You can add up to 6 items per a category to the compare list.  Until 31/03/2025 | You can add up to 6 items per a category to the compare list.  Until 31/03/2025 | You can add up to 6 items per a category to the compare list.  Until 31/03/2025 | You can add up to 6 items per a category to the compare list.  Until 31/03/2025 | You can add up to 6 items per a category to the compare list.  Until 31/03/2025 | You can add up to 6 items per a category to the compare list.  Until 31/03/2025 | You can add up to 6 items per a category to the compare list.  Until 31/03/2025 | You can add up to 6 items per a category to the compare list.  Until 31/03/2025 | You can add up to 6 items per a category to the compare list. Until 31/03/2025 | You can add up to 6 items per a category to the compare list.  Until 31/03/2025 | You can add up to 6 items per a category to the compare list.  Until 31/03/2025 | You can add up to 6 items per a category to the compare list.  Until 31/03/2025 | You can add up to 6 items per a category to the compare list. ![ABS [N]□□C series (high breaking capacity type, without fuse) [ABS52C]](http://th.misumi-ec.com/en/linked/material/el/LSI1/PHOTO/LSI1_75.jpg?$product_view_c$) | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  Until 31/03/2025 | You can add up to 6 items per a category to the compare list.  Until 31/03/2025 | You can add up to 6 items per a category to the compare list. ![ABS series (distribution panel-type, no fuse) [ABS32FB]](http://th.misumi-ec.com/en/linked/material/el/LSI1/PHOTO/222000491785_002.jpg?$product_view_c$) | You can add up to 6 items per a category to the compare list.  Until 31/03/2025 | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  Until 31/03/2025 | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  Until 31/03/2025 | You can add up to 6 items per a category to the compare list.  Until 31/03/2025 | You can add up to 6 items per a category to the compare list.  Until 31/03/2025 | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  Until 31/03/2025 | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  Until 31/03/2025 | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  Until 31/03/2025 | You can add up to 6 items per a category to the compare list.  | |
| Brand | MITSUBISHI | MITSUBISHI | MITSUBISHI | FUJI ELECTRIC | MITSUBISHI | MITSUBISHI | MITSUBISHI | MITSUBISHI | FUJI ELECTRIC | FUJI ELECTRIC | MITSUBISHI | FUJI ELECTRIC | MITSUBISHI | FUJI ELECTRIC | MISUMI | MITSUBISHI | MITSUBISHI | FUJI ELECTRIC | FUJI ELECTRIC | FUJI ELECTRIC | MITSUBISHI | FUJI ELECTRIC | FUJI ELECTRIC | LSIS | FUJI ELECTRIC | MITSUBISHI | FUJI ELECTRIC | LSIS | MITSUBISHI | NITTO KOGYO | FUJI ELECTRIC | MITSUBISHI | FUJI ELECTRIC | FUJI ELECTRIC | FUJI ELECTRIC | FUJI ELECTRIC | FUJI ELECTRIC | NITTO KOGYO | NITTO KOGYO | NITTO KOGYO | NITTO KOGYO | NITTO KOGYO | NITTO KOGYO | FUJI ELECTRIC | FUJI ELECTRIC | FUJI ELECTRIC | FUJI ELECTRIC | FUJI ELECTRIC | FUJI ELECTRIC |
| Product Series | WS-V series No-fuse circuit breaker for control panel NF-FA series | Molded Case Circuit Breakers (MCCB) NF-SVF Series with accessories | Molded Case Circuit Breakers (MCCB) NF-SVFU Series with accessories | WS-V Series NF-KC, MCCB for Power Distribution Board / Control Panel | Molded Case Circuit Breakers (MCCB) NF-SV Series with accessories | ABS [N]□□C series (high breaking capacity type, without fuse) [ABS52C] | Molded Case Circuit Breakers (MCCB) NF-NKC Series with accessories | Circuit Breaker for Distribution Board Compact Twin Series Auto Breaker (FAB) (Low Capacity) | NBE, circuit breaker (economic form), E series, rear surface shape | NE-N, circuit breaker (economic form) with simple 3 neutral wire phase failure protection, E series | NE-S, circuit breaker (generic form), S series, front surface shape | ||||||||||||||||||||||||||||||||||||||
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| From | ฿ 1,215.00 Special Price On Sale Until 31/03/2025 | ฿ 1,148.00 Special Price On Sale Until 31/03/2025 | ฿ 2,360.00 Special Price On Sale Until 31/03/2025 | ฿ 1,000.00 Special Price On Sale Until 31/03/2025 | ฿ 2,972.00 Special Price On Sale Until 31/03/2025 | ฿ 2,868.00 Special Price On Sale Until 31/03/2025 | ฿ 6,410.00 Special Price On Sale Until 31/03/2025 | ฿ 1,285.00 Special Price On Sale Until 31/03/2025 | ฿ 1,316.67 Special Price On Sale Until 31/03/2025 | ฿ 1,150.00 Special Price On Sale Until 31/03/2025 | ฿ 2,360.00 Special Price On Sale Until 31/03/2025 | ฿ 2,466.67 Special Price On Sale Until 31/03/2025 | ฿ 2,972.00 Special Price On Sale Until 31/03/2025 | ฿ 4,341.66 Special Price On Sale Until 31/03/2025 | ฿ 1,247.10 Special Price On Sale Until 31/03/2025 | ฿ 2,917.00 Special Price On Sale Until 31/03/2025 | ฿ 2,783.00 Special Price On Sale Until 31/03/2025 | ฿ 4,821.67 Special Price On Sale Until 31/03/2025 | ฿ 1,483.33 Special Price On Sale Until 31/03/2025 | ฿ 5,416.67 Special Price On Sale Until 31/03/2025 | ฿ 2,043.00 Special Price On Sale Until 31/03/2025 | ฿ 2,925.00 Special Price On Sale Until 31/03/2025 | ฿ 3,075.00 Special Price On Sale Until 31/03/2025 | ฿ 1,115.93 | ฿ 5,873.33 | ฿ 3,373.00 Special Price On Sale Until 31/03/2025 | ฿ 3,911.67 Special Price On Sale Until 31/03/2025 | ฿ 687.38 | ฿ 6,495.00 Special Price On Sale Until 31/03/2025 | ฿ 4,478.27 | ฿ 2,291.67 | ฿ 6,495.00 Special Price On Sale Until 31/03/2025 | ฿ 1,617.18 | ฿ 985.00 | ฿ 1,966.67 Special Price On Sale Until 31/03/2025 | ฿ 2,218.33 Special Price On Sale Until 31/03/2025 | ฿ 3,166.67 Special Price On Sale Until 31/03/2025 | ฿ 3,843.33 | ฿ 1,909.04 | ฿ 4,448.79 | ฿ 3,178.91 | ฿ 3,275.67 | ฿ 3,910.60 | ฿ 3,111.67 Special Price On Sale Until 31/03/2025 | ฿ 6,596.67 | ฿ 2,458.33 Special Price On Sale Until 31/03/2025 | ฿ 7,925.00 | ฿ 5,123.33 Special Price On Sale Until 31/03/2025 | ฿ 8,016.67 |
| Days to Ship | Same day | Same day | Same day | Same day | Same day | Same day | Same day | Same day | Same day | Same day | Same day | 61 Day(s) | 72 Day(s) | 61 Day(s) | Same day | 20 Day(s) | Same day | 61 Day(s) | Same day | 61 Day(s) | 72 Day(s) | 76 Day(s) | 76 Day(s) | Same day | 30 Day(s) | 72 Day(s) | 76 Day(s) | Same day | 72 Day(s) | 9 Day(s) | 61 Day(s) | 72 Day(s) | 45 Day(s) | 31 Day(s) | 61 Day(s) | 76 Day(s) | 76 Day(s) | 9 Day(s) | 5 Day(s) | 5 Day(s) | 5 Day(s) | 9 Day(s) | 9 Day(s) | 76 Day(s) | 75 Day(s) | 76 Day(s) | 75 Day(s) | 61 Day(s) | 90 Day(s) |
| Ampere frame | 50AF | 50AF | 50AF | 50AF | 50AF | 50AF | 50AF | 50AF | 50AF | 50AF | 50AF | 50AF | 50AF | 50AF | 50AF | 50AF | 50AF | 50AF | 50AF | 50AF | 50AF | 50AF | 50AF | 50AF | 50AF | 50AF | 50AF | 50AF | 50AF | 50AF | 50AF | 50AF | 50AF | 50AF | 50AF | 50AF | 50AF | 50AF | 50AF | 50AF | 50AF | 50AF | 50AF | 50AF | 50AF | 50AF | 50AF | 50AF | 50AF |
| Rated block capacity AC 100 V(kA) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 5 | - | - | - | - | 5 | - | 5 | - | 5 | - | - | - | 5 | - | - | - | 10 | - | - | 5 | - | - | - | - |
| Rated block capacity AC 200 V(kA) | - | 7.5 | - | - | 15 | - | - | 25 ～ 85 | - | - | 5 | 0 | 15 | 0 | 35 | 2.5 | - | - | - | - | - | - | - | 35 | - | 5 | - | 5 | - | 2.5 | 2.5 | 5 | - | 2.5 | - | 2.5/2 | - | 2.5 | 10 | 10 | 10 | 10 | - | - | 5 | - | - | - | - |
| Rated block capacity AC 400 V(kA) | 7.5 | 5 ～ 10 | - | 1.5/1 | 10 | - | 10 | 10 ～ 30 | 7.5/4 | 2.5/2 | 1.5 | 10/5 | 10 | 7/4 ～ 10/20 | - | - | 10 | 10/5 | 10/5 | 65/17 | 5 | - | 7.5/4 | - | - | 1.5 | 7.5 | - | - | - | - | - | 2.5/2 | - | 5/5 | 1.5/1 | 2.5/2 | - | - | - | - | - | - | 2.5/2 | - | 2.5 | 10 | 10 | 50 |
| Rated Braking Capacity at Rated Voltage of VDC 250(kA) | 7.5 | 2.5 | - | - | - | - | - | 7.5 ～ 40 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 2.5 | 2.5 | 2.5 | - | - | - | - | - | - | - | - |
| Rated block capacity, voltages except VAC 100/200/400, VDC 250 | - | Available | Available | - | - | Available | Available | - | - | - | Available | - | - | - | Available | - | Available | - | - | - | - | - | - | Available | Available | Available | Available | Available | - | Available | - | - | - | Available | - | - | - | Available | Available | Available | Available | - | Available | - | - | Available | Available | Available | Available |
| Number of Poles | 2 / 3 / 4 | 2 / 3 | 2 / 3 | 2 / 3 | 2 / 3 | 2 / 3 | 2 / 3 | 2 / 3 / 4 | 2 / 3 | 2 / 3 | 2 / 3 | 2 / 3 | 2 | 2 / 3 | 2 / 3 | 3 | 1 / 2 / 3 | 2 / 3 | 2 / 3 | 2 / 3 | 3 | 2 / 3 | 2 / 3 | 2 / 3 | 3 | 2 / 3 | 3 | 2 / 3 | 3 | 2 / 3 | 2 / 3 | 3 | 2 / 3 | 2 | 2 / 3 | 2 / 3 | 3 | 2 / 3 | 2 / 3 | 2 / 3 | 2 / 3 | 3 | 2 / 3 / 4 | 3 | 3 | 2 / 3 | 3 | 3 | 3 |
| Rated Current(A) | 10 ～ 50 | 4 ～ 50 | 30 ～ 50 | 5 ～ 50 | 10 ～ 50 | 5 ～ 50 | 5 ～ 50 | 10 ～ 50 | 5 ～ 50 | 5 ～ 50 | 20 ～ 50 | 3 ～ 50 | 15 | 3 ～ 50 | 15 ～ 50 | 40 | 1 ～ 20 | 3 ～ 50 | 10 ～ 50 | 15 ～ 50 | 32 | 50 | 15 ～ 50 | 15 ～ 50 | 5 ～ 50 | 0.3 ～ 30 | 0.7 ～ 45 | 40 ～ 50 | 30 | 1.4 ～ 50 | 40 ～ 50 | 50 | 5 ～ 50 | 15 ～ 30 | 3 ～ 50 | 5 ～ 50 | 50 | 1.4 ～ 50 | 20 ～ 40 | 15 ～ 50 | 15 ～ 50 | 20 ～ 40 | 20 ～ 50 | 24 ～ 45 | 20 ～ 50 | 40 ～ 50 | 20 | 10 ～ 45 | 0.7 ～ 40 |
| Mounting Method | DIN/Screw retention | Fasten With Screws / DIN/Screw retention | DIN/Screw retention | - | DIN/Screw retention | DIN/Screw retention | DIN rail mount | Fasten With Screws / DIN/Screw retention | - | - | DIN rail mount / Fasten With Screws / DIN/Screw retention | - | DIN/Screw retention | - | Fasten With Screws | DIN/Screw retention | DIN rail mount | - | - | - | Fasten With Screws | DIN/Screw retention | - | Fasten With Screws | DIN/Screw retention | DIN/Screw retention | DIN/Screw retention | DIN/Screw retention | DIN/Screw retention | Fasten With Screws | Fasten With Screws | DIN/Screw retention | - | Fasten With Screws | - | - | - | Fasten With Screws | Fasten With Screws | Fasten With Screws | Fasten With Screws | Fasten With Screws | Fasten With Screws | - | DIN/Screw retention | DIN/Screw retention | DIN/Screw retention | DIN/Screw retention | Fasten With Screws |
| Connection Method | Surface type | Surface type / Backside shape / Embedded Type | Surface type | - | Surface type | Surface type | Surface type | Surface type | - | - | Surface type | - | Surface type | - | Surface type | Surface type | Surface type | - | - | - | Surface type | Surface type | - | Surface type | Surface type | Surface type | Surface type | Surface type | Surface type | Insert shape | Surface type | Surface type | - | - | - | - | - | Insert shape | Surface type | Embedded Type | Backside shape | - | Surface type | - | Surface type | Surface type | Surface type | Surface type | Surface type |
| Representative Standard | PSE / CE / CCC | PSE / CE / TUV / CCC | PSE | - | PSE / CE / TUV / CCC | PSE / CE / UL / TUV / CCC | PSE / CE / CCC | PSE / CE / CCC | - | - | PSE | - | PSE / CE / TUV / CCC | - | PSE / CE | PSE | CE / UL / CSA | - | - | - | PSE / CE / CCC | CE | - | PSE / CE | PSE | PSE / CE / CCC | PSE / CE / TUV / CCC | PSE / CE | PSE | PSE | PSE | PSE | - | PSE | - | - | - | PSE | PSE | PSE | PSE | PSE | PSE | - | PSE | PSE | PSE / TUV / CCC | PSE / TUV / CCC | PSE |
| Dimension height(mm) | 130 | 100 ～ 130 | 72 | 100 | 100 | 72 ～ 96 | 120 | 130 | 100 | 100 | 96 | 100 | 100 | 120 | 130 | 72 | 124 | 120 | 100 | 155 | 130 | 100 | 100 | 130 | 130 | 96 | 100 | 96 | 96 | 252 | 120 | 96 | 100 | 96 ～ 110 | 100 | 100 | 50 | 252 | 130 | 200 | - | 130 | 130 ～ 155 | 100 | 100 | 100 | 100 | 100 | 130 ～ 150 |
| Dimension width(mm) | 50 ～ 100 | 36 ～ 75 | 40 ～ 60 | 50 ～ 75 | 36 ～ 54 | 40 ～ 75 | 36 | 50 ～ 100 | 50 ～ 75 | 50 ～ 75 | 50 ～ 75 | 36 ～ 54 | 36 | 50 ～ 75 | 75 | 60 | 18 ～ 54 | 36 ～ 54 | 50 ～ 75 | 90 | 75 | 50 ～ 75 | 50 ～ 75 | 50 ～ 75 | 75 | 50 ～ 75 | 75 | 50 ～ 75 | 75 | 60 ～ 75 | 50 ～ 75 | 75 | 50 ～ 75 | 25 | 36 ～ 54 | 50 ～ 75 | 100 | 60 ～ 75 | 50 ～ 75 | 95 ～ 120 | - | 75 | 50 ～ 120 | 75 | 75 | 50 ～ 75 | 75 | 75 | 75 |
| Dimension depth(mm) | 90 | 90 | 73.5 | 84 | 54 | 73.5 ～ 76 | 90 | 90 | 84 | 84 | 76 | 90 | 54 | 84 | 60 | 73.5 | 70 | 90 | 84 | 95 | 90 | 84 | 84 | 82 | 84 | 76 | 84 | 80 | 76 | 194 | 84 | 76 | 84 | 76.5 | 90 | 84 | 84 | 150 | 90 | 144 | - | 90 | 87 ～ 92 | 84 | 84 | 84 | 84 | 84 | 80 ～ 102 |
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Related Categories to Circuit Breakers (Low Capacity)
FAQ Circuit Breakers (Low Capacity)
- Question: Types of circuit breaker and their applications.
- Answer: Circuit breakers mainly are categorized based on application as per voltage.
1. Low Voltage Circuit Breaker
Low-voltage circuit breakers are typically used in applications such as lighting circuits, motor control centers, feeder circuits, and any application in which electrical power needs to be turned on and off and overcurrent protection is required.
2. Medium Voltage Circuit Breakers
Medium voltage breakers are designed to be operated electrically by a closing solenoid or a stored energy mechanism. Manual operation is used primarily for breaker maintenance.
3. HIGH-VOLTAGE CIRCUIT BREAKERS
High-voltage circuit breakers are mechanical switching devices that connect and break current circuits (operating currents and fault currents) and carry the nominal current in the closed position. - Question: What can cause the main circuit breaker to trip?
- Answer: The most common cause of a tripped circuit breaker is an overload in that circuit. Each circuit is only intended to carry a certain electrical load, and if it exceeds this load, it will cause the breaker to trip. This is important, as overloading a circuit can cause the wiring to heat up and potentially create a fire risk. In fact, it is this excess heat running through the circuit that causes the breaker to trip.
- Question: How we know that have to replace breaker?
- Answer: 1. Breaker trips frequently.
2. Burning smell coming from the electrical panel.
3. Poorly performing appliances and light fixtures.
4. Breaker fails to stay in reset mode.
5. Visible signs of physical damage. - Question: How do I know whether to get a 15 or 20 A circuit breaker?
- Answer: Calculate the total current of all electrical equipment. that want to be connected to the breaker The sum of the calculated current should not exceed 80% of the breaker capacity. For example, a 15 A breaker can be connected to external devices up to 12A (15 x 0.80 = 12), and a 20 A breaker can be connected to external devices up to 16A (20 x 0.80 = 16). This can lead to calculation errors and can cause a fire.
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