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Circuit Breakers (Low Capacity)（Ampere frame：30AF or less）
Configure
Specification/Dimensions
-
Ampere frame
- 30AF or less
- 32AF
- 50AF
- 60AF
- 63AF
- 100AF to 199AF
- 200AF to 399AF
- 400AF or higher
-
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)
- 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
-
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
-
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
-
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
- -
-
Rated block capacity, voltages except VAC 100/200/400, VDC 250
- Available
-
Number of Poles
- 1
- 2
- 3
- 4
-
Rated Current(A)
-
Mounting Method
-
Connection Method
- Surface type
- Backside shape
- Embedded Type
- Insert shape
- Insert shape
-
Representative Standard
-
Dimension height(mm)
-
Dimension width(mm)
-
Dimension depth(mm)
Brand |
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|---|---|
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- 15 items
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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: ฿ 1,100.00 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: ฿ 2,048.00 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: ฿ 1,182.00 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: ฿ 1,607.00 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: ฿ 1,350.00 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: ฿ 1,772.00 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-KC 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: ฿ 2,360.00 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 31/03/2025Molded 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: ฿ 2,852.00 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 31/03/2025Molded Case Circuit Breakers (MCCB) MB-Series
MITSUBISHI
WS series MB type no-fuse breaker for motor protection.
[Features]
· Can protect motor against short circuits / overload.
· Series expanded and models renewed from 30 A frames to 1,600 A frames.
· Connection method: front surface type, back surface type, embedded type, inserted type.
[Applications]
· Earth leakage breaker for motor protection.From: ฿ 1,445.00 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-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: ฿ 2,383.00 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.
KAWAMURA
- No fuse breaker SE series from Kawamura. - Frame size of breaker is 30AF. - Rated current are 3 types available 15A, 20A and 30A. - Can be select no. of poles, 1 or 2 poles. - Rated operating voltage can be select 2 types: AC 100 V or AC 200 V. - No. of poles/elements: 2 type available, 2P1E and 2P2E. - Applicable cable size is φ1.6 - 3.2 mm (2.0 – 8 sq.mm). - Fasten torque of terminal screw is 2 - 2.5 N・m.From: ฿ 400.00 Days to Ship:
10 Day(s)
10 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: ฿ 597.03 Days to Ship:
Same day
Same day
-
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: ฿ 1,466.67 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 31/03/2025SETTSUMETAL
[Features]
· Breaker that can be used with AC power ducting, etc.
[Specifications]
· Connectable electric wires: 5.5 to 8 mm. When using stranded wire (1.25 to 3.5 mm) such as ø1.6 to 2.6 device wire, use a bar crimp terminal.From: ฿ 479.76 Special Price Days to Ship:
Same day
Same day
-
You can add up to 6 items per a category to the compare list.
![[PN] Mini-slim circuit breaker for dispersion type interconnected power supply systems](//th.misumi-ec.com/en/linked/material/el/NTO1/PHOTO/222004927592.jpg?$product_view_b$)
[PN] Mini-slim circuit breaker for dispersion type interconnected power supply systems
NITTO KOGYO
- Mini-slim circuit breaker for dispersion type interconnected power supply systems PN series from NITTO KOGYO. - Rated operating voltage is 3 phase AC 100/200 V. - Rated current are 2types available 20 and 30 A. - Rated break capacity is 2.5kA. - Tripping device is thermal magnetic. - Terminal structure at power supply side is plug-in type. - Terminal structure at load side is quick connection terminal type for PN33TA and solderless type for PN33A. - Possible to reverse connection.From: ฿ 3,596.16 Days to Ship:
9 Day(s)
9 Day(s)
![ABS series (distribution panel-type, no fuse) [ABS32FB]](http://th.misumi-ec.com/en/linked/material/el/LSI1/PHOTO/222000491785_002.jpg?$product_view_b$)
![[PN] Mini-slim circuit breaker for dispersion type interconnected power supply systems](http://th.misumi-ec.com/en/linked/material/el/NTO1/PHOTO/222004927592.jpg?$product_view_b$)
| Brand |
|---|
| 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.  | 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.  | 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. ![[PN] Mini-slim circuit breaker for dispersion type interconnected power supply systems](http://th.misumi-ec.com/en/linked/material/el/NTO1/PHOTO/222004927592.jpg?$product_view_c$) | |
| Brand | MITSUBISHI | MITSUBISHI | MITSUBISHI | MITSUBISHI | MITSUBISHI | MITSUBISHI | MITSUBISHI | MITSUBISHI | MITSUBISHI | MITSUBISHI | KAWAMURA | LSIS | FUJI ELECTRIC | SETTSUMETAL | NITTO KOGYO |
| 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 | WS-V Series NF-KC, MCCB for Power Distribution Board / Control Panel | Molded Case Circuit Breakers (MCCB) NF-KC Series with accessories | Molded Case Circuit Breakers (MCCB) NF-SV Series with accessories | [PN] Mini-slim circuit breaker for dispersion type interconnected power supply systems | |||||||||
| CAD |
|
| |||||||||||||
| From | ฿ 1,100.00 Special Price On Sale Until 31/03/2025 | ฿ 2,048.00 Special Price On Sale Until 31/03/2025 | ฿ 1,182.00 Special Price On Sale Until 31/03/2025 | ฿ 1,607.00 Special Price On Sale Until 31/03/2025 | ฿ 1,350.00 Special Price On Sale Until 31/03/2025 | ฿ 1,772.00 Special Price On Sale Until 31/03/2025 | ฿ 2,360.00 Special Price On Sale Until 31/03/2025 | ฿ 2,852.00 Special Price On Sale Until 31/03/2025 | ฿ 1,445.00 Special Price On Sale Until 31/03/2025 | ฿ 2,383.00 Special Price On Sale Until 31/03/2025 | ฿ 400.00 | ฿ 597.03 | ฿ 1,466.67 | ฿ 479.76 Special Price On Sale Until 31/03/2025 | ฿ 3,596.16 |
| Days to Ship | Same day | Same day | Same day | Same day | Same day | Same day | 72 Day(s) | 72 Day(s) | Same day | 72 Day(s) | 10 Day(s) | Same day | 61 Day(s) | Same day | 9 Day(s) |
| Ampere frame | 30AF or less | 30AF or less | 30AF or less | 30AF or less | 30AF or less | 30AF or less | 30AF or less | 30AF or less | 30AF or less | 30AF or less | 30AF or less | 30AF or less | 30AF or less | 30AF or less | 30AF or less |
| Rated block capacity AC 100 V(kA) | - | - | - | - | - | - | - | - | - | - | 2.5 | - | - | - | 2.5 |
| Rated block capacity AC 200 V(kA) | - | - | 2.5 | 7.5 | - | 5 | 5 | 1.5 | 2.5 ～ 5 | - | 2.5 | 5 | 2.5 | - | 2.5 |
| Rated block capacity AC 400 V(kA) | 5 | 5 | - | 5 | - | 1.5 | 1.5 | - | 1.5 | 5 | - | - | - | - | - |
| Rated Braking Capacity at Rated Voltage of VDC 250(kA) | 2.5 | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Rated block capacity, voltages except VAC 100/200/400, VDC 250 | - | - | Available | - | Available | Available | Available | Available | Available | - | - | Available | - | Available | - |
| Number of Poles | 2 / 3 | 3 | 2 / 3 | 2 / 3 | 2 / 3 | 2 / 3 | 3 | 2 | 2 / 3 | 3 | 2 | 2 / 3 | 2 / 3 | 2 | 3 |
| Rated Current(A) | 3 ～ 30 | 4 ～ 25 | 5 ～ 30 | 3 ～ 30 | 5 ～ 30 | 3 ～ 30 | 3 ～ 15 | 5 | 1.4 ～ 32 | 10 ～ 25 | 15 ～ 30 | 3 ～ 30 | 1.4 ～ 30 | 15 ～ 20 | 30 |
| Mounting Method | Fasten With Screws / DIN/Screw retention | DIN/Screw retention | DIN rail mount / DIN/Screw retention | DIN/Screw retention | DIN/Screw retention | DIN rail mount / Fasten With Screws / DIN/Screw retention | Fasten With Screws / DIN/Screw retention | DIN rail mount | Fasten With Screws / DIN/Screw retention | Fasten With Screws | Fasten With Screws | DIN/Screw retention | Fasten With Screws | Fasten With Screws | Other |
| Connection Method | Surface type / Backside shape / Embedded Type / Insert shape | Surface type | Surface type | Surface type | Surface type | Surface type | Surface type | Surface type | Surface type | Surface type | Surface type / Embedded Type | Surface type | Surface type | Surface type | Surface type |
| Representative Standard | PSE / CE / CCC | PSE / CE / CCC | PSE | PSE / CE / TUV / CCC | PSE / CE / UL / TUV / CCC | PSE | PSE | PSE | PSE / CE / TUV | PSE / CE / CCC | PSE | PSE / CE | PSE | PSE | PSE |
| Dimension height(mm) | 130 | 130 | 72 | 100 | 72 | 96 | 96 | 72 | 96 | 130 | 70 | 96 | 120 | 70 | 88 |
| Dimension width(mm) | 50 ～ 75 | 75 | 40 ～ 60 | 36 ～ 54 | 40 ～ 60 | 50 ～ 75 | 75 | 40 | 45 ～ 75 | 75 | 32 | 50 ～ 75 | 50 ～ 75 | 32 | 36 |
| Dimension depth(mm) | 90 | 90 | 73.5 | 90 | 73.5 | 76 | 76 | 73.5 | 67 ～ 76 | 90 | 55 | 80 | 84 | 55.5 | 55 |
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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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