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MITSUBISHI Circuit Breakers (Low Capacity)（Rated block capacity, voltages except VAC 100/200/400, VDC 250：Available）
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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| CAD |
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- 19 items
- Sort By
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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: ฿ 2,265.00 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-CV/SV
MITSUBISHI
WS-V series no-fuse breaker for motor protection.From: ฿ 3,108.00 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 31/03/2025WS-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-CS 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: ฿ 1,148.00 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 31/03/2025Molded 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: ฿ 2,690.00 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-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 31/03/2025Molded 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-SV 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: ฿ 1,215.00 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-CS Series
MITSUBISHI
Standard type small breaker.
[Features]
An economical product that is widely popular in the market.
· Width 67.5 mm (3P).
· Mountable on IEC 35 mm rail.
· Standard compliance to CE marking + CCC authentication (excludes NV).
· Earth leakage breaker handles higher harmonics and surges.From: ฿ 2,690.00 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 31/03/2025WS-V Series MCCB, NF-S Class (General-Purpose Product)
MITSUBISHI
Mitsubishi Electric Circuit Breaker (Low Capacity) WS-V Series MCCB NF-S Class (General Purpose Product) SW/SDW/SEW Series 400 AF or Higher.From: ฿ 10,602.00 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-CVF 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: ฿ 2,128.33 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 31/03/2025Molded 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: ฿ 2,530.00 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-HCW 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: ฿ 1,285.00 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 31/03/2025Molded 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 31/03/2025UL 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 31/03/2025Molded 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 31/03/2025Earth Leakage Circuit Breakers (ELCB) NV-ZCV 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: ฿ 10,963.00 Special Price Days to Ship:
72 Day(s)
72 Day(s)
| Brand |
|---|
| Product Series |
| 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 | |
| Brand | MITSUBISHI | MITSUBISHI | MITSUBISHI | MITSUBISHI | MITSUBISHI | MITSUBISHI | MITSUBISHI | MITSUBISHI | MITSUBISHI | MITSUBISHI | MITSUBISHI | MITSUBISHI | MITSUBISHI | MITSUBISHI | MITSUBISHI | MITSUBISHI | MITSUBISHI | MITSUBISHI | MITSUBISHI |
| Product Series | WS-V series No-fuse circuit breaker for control panel NF-FA series | Molded Case Circuit Breakers (MCCB) NF-CS Series with accessories | Molded Case Circuit Breakers (MCCB) NF-SVF Series with accessories | Molded Case Circuit Breakers (MCCB) NF-SVFU Series with accessories | Molded Case Circuit Breakers (MCCB) NF-SV Series with accessories | WS-V Series NF-KC, MCCB for Power Distribution Board / Control Panel | Molded Case Circuit Breakers (MCCB) NF-CVF Series with accessories | Molded Case Circuit Breakers (MCCB) NF-HCW Series with accessories | Molded Case Circuit Breakers (MCCB) NF-KC Series with accessories | ||||||||||
| From | ฿ 2,265.00 Special Price On Sale Until 31/03/2025 | ฿ 3,108.00 Special Price On Sale Until 31/03/2025 | ฿ 1,182.00 Special Price On Sale Until 31/03/2025 | ฿ 1,148.00 Special Price On Sale Until 31/03/2025 | ฿ 2,690.00 Special Price On Sale Until 31/03/2025 | ฿ 1,350.00 Special Price On Sale Until 31/03/2025 | ฿ 6,410.00 Special Price On Sale Until 31/03/2025 | ฿ 1,215.00 Special Price On Sale Until 31/03/2025 | ฿ 2,690.00 Special Price On Sale Until 31/03/2025 | ฿ 10,602.00 Special Price On Sale Until 31/03/2025 | ฿ 1,772.00 Special Price On Sale Until 31/03/2025 | ฿ 2,128.33 Special Price On Sale Until 31/03/2025 | ฿ 2,530.00 Special Price On Sale Until 31/03/2025 | ฿ 1,285.00 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 | ฿ 2,783.00 Special Price On Sale Until 31/03/2025 | ฿ 3,373.00 Special Price On Sale Until 31/03/2025 | ฿ 10,963.00 Special Price On Sale Until 31/03/2025 |
| Days to Ship | 72 Day(s) | 72 Day(s) | Same day | Same day | 72 Day(s) | Same day | Same day | Same day | 72 Day(s) | Same day | Same day | Same day | Same day | Same day | 72 Day(s) | 72 Day(s) | Same day | 72 Day(s) | 72 Day(s) |
| Ampere frame | 32AF | 50AF / 200AF to 399AF | 30AF or less / 50AF | 63AF / 100AF to 199AF / 400AF or higher | 32AF / 63AF / 100AF to 199AF | 30AF or less / 50AF | 50AF / 100AF to 199AF | 32AF / 63AF / 100AF to 199AF / 400AF or higher | 63AF | 400AF or higher | 30AF or less / 50AF / 100AF to 199AF | 63AF | 30AF or less | 63AF / 100AF to 199AF / 400AF or higher | 30AF or less | 30AF or less | 50AF / 100AF to 199AF | 50AF / 100AF to 199AF | 63AF / 400AF or higher |
| Rated block capacity AC 100 V(kA) | - | - | - | - | - | - | - | 7.5 | - | - | - | - | - | - | - | - | - | 5 | 15 ～ 85 |
| Rated block capacity AC 200 V(kA) | - | - | 2.5 | 7.5 ～ 50 | 7.5 ～ 50 | - | - | 85 ～ 125 | 7.5 | 85 | 5 | 7.5 | 5 | 25 ～ 100 | 5 | 1.5 | - | 5 | 15 ～ 85 |
| Rated block capacity AC 400 V(kA) | 5 | 5 ～ 36 | - | 5 ～ 36 | 5 ～ 25 | - | 10 ～ 36 | 5 ～ 85 | 5 | 45 ～ 50 | 1.5 | 5 | 1.5 | 10 ～ 75 | 1.5 | - | 10 ～ 25 | 1.5 | 7.5 ～ 50 |
| Rated Braking Capacity at Rated Voltage of VDC 250(kA) | - | - | - | 2.5 ～ 20 | - | - | - | 40 | 2.5 | 40 | - | - | - | 7.5 ～ 40 | - | - | - | - | - |
| 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 |
| Number of Poles | 2 | 3 | 2 / 3 | 2 / 3 | 2 / 3 | 2 / 3 | 2 / 3 | 2 / 3 / 4 | 3 | 2 / 3 / 4 | 2 / 3 | 2 / 3 | 2 / 3 | 2 / 3 / 4 | 3 | 2 | 1 / 2 / 3 | 2 / 3 | 3 / 4 |
| Rated Current(A) | 10 | 25 ～ 200 | 5 ～ 50 | 3 ～ 630 | 3 ～ 100 | 5 ～ 50 | 5 ～ 150 | 1,200 ～ 630 | 50 | 250 ～ 600 | 3 ～ 100 | 5 ～ 30 | 1.4 ～ 32 | 16 ～ 400 | 3 ～ 15 | 5 | 1 ～ 50 | 0.3 ～ 100 | 15 ～ 400 |
| Mounting Method | DIN rail mount | Fasten With Screws / DIN/Screw retention | DIN rail mount / DIN/Screw retention | DIN rail mount | DIN rail mount | DIN/Screw retention | DIN rail mount | DIN rail mount | DIN rail mount | - | DIN rail mount / Fasten With Screws / DIN/Screw retention | DIN rail mount | DIN/Screw retention | DIN rail mount | Fasten With Screws / DIN/Screw retention | DIN rail mount | DIN rail mount / Fasten With Screws | DIN/Screw retention | DIN rail mount |
| Connection Method | 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 | Surface type |
| Representative Standard | PSE / CE / CCC | PSE / CE / TUV / CCC | PSE | PSE / CE / CCC | PSE / CE / CCC | PSE / CE / UL / TUV / CCC | PSE / CE / CCC | PSE / CE / CCC | PSE / CE / CCC | CE / CCC | PSE | PSE / CE / CCC | PSE / CE | PSE / CE / CCC | PSE | PSE | CE / UL / TUV / CSA | PSE / CE / CCC | PSE |
| Dimension height(mm) | 130 | 130 ～ 165 | 72 | 130 ～ 257 | 100 ～ 130 | 72 ～ 96 | 120 ～ 185 | 130 ～ 406 | 130 | 257 | 96 | 100 | 96 | 130 ～ 257 | 96 | 72 | 120 ～ 124 | 96 ～ 97.5 | 130 ～ 257 |
| Dimension width(mm) | 75 | 75 ～ 105 | 40 ～ 60 | 50 ～ 140 | 36 ～ 75 | 40 ～ 75 | 36 ～ 105 | 75 ～ 280 | 75 | 140 ～ 185 | 50 ～ 75 | 36 ～ 54 | 50 ～ 75 | 50 ～ 140 | 75 | 40 | 18 ～ 75 | 50 ～ 75 | 75 ～ 185 |
| Dimension depth(mm) | 90 | 90 ～ 92 | 73.5 | 90 ～ 155 | 90 | 73.5 ～ 76 | 90 ～ 92 | 90 ～ 190 | 90 | 155 | 76 | 90 | 76 | 90 ～ 155 | 76 | 73.5 | 70 ～ 102 | 76 | 90 ～ 155 |
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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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