Home > Electrical Equipment & Supplies > Low Voltage Products > Moulded Case Circuit Breaker >

How Circuit Breakers Work

Fair Trading Service

Report fraud supplier Report IPR Products

Haven't found right suppliers
Our buyer assistants can help you find the most suitable, 100% reliable suppliers from China.
And this service is free of charge.
we have buyer assistants who speak English, French, Spanish......and we are ready to help you anytime!

Submit Buying Request

Total 18666 products for how circuit breakers work Manufacture & Suppliers

Magnetic Molded Case Circuit Breaker , Thermal Switch Electrical Breaker Panel

400A 4P Moulded Case Circuit Breaker Thermal Switch Mccb Applicable working environment The altitude is below 2000m The circuit breaker can be at -25 C -70 C It is able to tolerate moist air and is affected by ...

Zhejiang Guokong Electric Co., Ltd.
Zhejiang,China

Active Member

Add to cart
Miniature Molded Case Circuit Breaker 3 Pole For Avoiding Loss Voltage

...circuit breaker Description: ABN series MCCB is NEWST TYPE circuit breaker. It is suitable for industrial or commercial power and lighting with AC50/ 60Hz, rated working voltage up to AC600V/DC250V, rated cu...

Wenzhou New Blue Sky Electrical Co.,Ltd
Zhejiang,China

Active Member

Add to cart
Miniature Molded Case Circuit Breaker 3 Pole For Avoiding Loss Voltage

...circuit breaker Description: ABN series MCCB is NEWST TYPE circuit breaker. It is suitable for industrial or commercial power and lighting with AC50/ 60Hz, rated working voltage up to AC600V/DC250V, rated cu...

Wenzhou New Blue Sky Electrical Co.,Ltd
Zhejiang,China

Verified Supplier

Add to cart
VS1-12 VCB 25KA Breaking Fixed Circuit Breaker With 205mm Phase Spacing

... VS1 vacuum circuit breaker can perform frequent operations or break short-circuit current multiple times within the working current range; the mechanical life can be up to 30,000 times, and the full-capacit...

Knkong Electric Co.,Ltd
Henan,China

Active Member

Add to cart
VS1-12 VCB 25KA Breaking Fixed Circuit Breaker With 205mm Phase Spacing

... VS1 vacuum circuit breaker can perform frequent operations or break short-circuit current multiple times within the working current range; the mechanical life can be up to 30,000 times, and the full-capacit...

Knkong Electric Co.,Ltd
Henan,China

Verified Supplier

Add to cart
12KV Vacuum Type Circuit Breaker / High Voltage Indoor Vcb Long Service

... or VCB Service life of vacuum circuit breaker is much longer than other types of circuit breakers. There is no chance of fire hazard as oil circuit breaker. It is much environment friendly than SF6 Circuit ...

ZHEJIANG XINKOU POWER EQUIPMENT CO.,LTD
Zhejiang,China

Site Member

Add to cart
110kV 126kV High Voltage Circuit Breaker 3150A - 40kA Sf6 Circuit Breaker

... Circuit Breaker 3150A - 40kA Sf6 Circuit Breaker Product Description LW39-126 type circuit breaker is a high performance new type HV SF6 circuit breaker. Based on sufficient absorbing and digesting advanced...

Ningbo Tianan (Group) Co.,Ltd.
Zhejiang,China

Verified Supplier

Add to cart
110kV Live Tank Outdoor High Voltage Circuit Breaker / Vacuum Circuit Breaker

...Voltage Circuit Breaker / Vacuum Circuit Breaker General LW36-126 type outdoor circuit breaker is a high performance new type HV SF6 circuit breaker based on sufficient absorbing and digesting advanced techn...

Ningbo Tianan (Group) Co.,Ltd.
Zhejiang,China

Verified Supplier

Add to cart
800A Rated Current 660V Low Voltage Circuit Breaker with Compact Structure Moulded Case Circuit Breaker

...rated operating voltage up to 660V (690V), and rated current up to 800A. These breakers provide reliable protection for transformers, motor circuits, and infrequent starting applications. They feature compre...

Ningbo Tianan (Group) Co.,Ltd.
Zhejiang,China

Verified Supplier

Add to cart
VT12(ZN85)-40.5 Indoor High Voltage Vacuum Circuit Breaker

...Circuit Breaker Model: VT12(ZN85)-40.5 Rated short circuit making current (peak): 50/63,80 KA Rated frequency: 50Hz Relative humidity: Daily Average <95%, Monthly Average<90% Size: As Picture 12KV Vacuum Circuit Breaker, High Voltage Circuit Breaker, High Voltage Circuit Breaker Technical Parameters: Product Name High Voltage Vacuum Circuit Breaker......

Ningbo Tianan (Group) Co.,Ltd.
Zhejiang,China

Verified Supplier

Add to cart
Indoor VT12 ZN85-40.5 20/25 High Voltage Circuit Breaker 31 KA Rated Breaking Current

...indoor HV vacuum circuit breakers conformed to the standard of GB1984 (AC/HV circuit breaker), JB3855 (3.6-40.5kV indoor AC/HV vacuum circuit breaker) and IEC. VT12(ZN85)-40.5 indoor HV vacuum circuit breake...

Ningbo Tianan (Group) Co.,Ltd.
Zhejiang,China

Verified Supplier

Add to cart
240V SM1L Moulded Case Circuit Breaker With Earth Leakage Protection

...circuit breaker with earth leakage protection Keyword:Vertical or Horizontal installation, with leakage current, alarm function;Leakage current tripping fast, complete accessory and can adjust leakage operat...

Wuxi Fenigal Science & Technology Co., Ltd.
Jiangsu,China

Verified Supplier

Add to cart
ZN28A Series Indoor AC Vacuum Circuit Breaker 12KV 1250A

...Circuit Breaker 24KV 12KV 1250A-2150A Price 1.Description of ZN28A Series Indoor AC Vacuum Circuit Breaker ZN28(A)-12 series vacuum circuit breaker is an indoor high voltage switch with rated voltage 12KV, 3...

Xi'an Xigao Electricenergy Group Co., Ltd.
Shanxi,China

Verified Supplier

Add to cart
SKW1-1000/3P/800A ( DW50) Intelligent Universal Circuit Breaker With Low Voltage Switchgear

...Circuit Breaker with low voltage switchgear Simply speaking, it is the difference of size. Not only the frame circuit breaker is bigger than the moulded case circuit breaker, but also the current grade and s...

WENZHOU QIUPU ELECTRIC POWER CO., LTD.
Zhejiang,China

Verified Supplier

Add to cart
125 Amp MCB Mini Circuit Breaker / Small Magnetic Trip Circuit Breaker

... commercial electrical distribution boards throughout Europe. The design includes the following components: 1. Actuator lever - used to manually trip and reset the circuit breaker. Also indicates the status ...

Hefei Purple Horn E-Commerce Co., Ltd.
Anhui,China

Verified Supplier

Add to cart
Outdoor Zw32 33kv Vacuum Circuit Breaker

... or 36kv and AC three phases frequency of 50Hz, is mainly applied to close and break loading current, over loading current and short-circuit current in electrical power system. It has two working principal, ...

Xi'an Xigao Electricenergy Group Co., Ltd.
Shanxi,China

Verified Supplier

Add to cart
Using recharge station or solar device B model RCCB 2P 4 Pole Residual Current Circuit Breaker

... DC currents that may result fromrectifying circuits and high frequency AC residual currents.Itprotects in the event ofcontunuous fault current on three phase networks.Itusually is used in the field of ......

WENZHOU SANTUO ELECTRICAL CO.,LTD.
Zhejiang,China

Site Member

Add to cart
Using recharge station B model RCCB Circuit Breaker 2P 4P 25A,40A,63A with CE,CB,SAA approvals

STID-B Residual current Circuit Breaker(RCCB B model) General: STID-B RCCB B model is worked on type A and in addition for smooth DC residual currents, residual DC currents that may results from rectifying circ...

WENZHOU SANTUO ELECTRICAL CO.,LTD.
Zhejiang,China

Site Member

Add to cart
SONTUOEC Brand B model RCCB 2 Pole Residual STID-B series Current Circuit Breaker 10KA

... STID-B series Current Circuit Breaker 10KA (RCCB B model) General: STID-B RCCB B model is worked on type A and in addition for smooth DC residual currents, residual DC currents that may results from rectify...

WENZHOU SANTUO ELECTRICAL CO.,LTD.
Zhejiang,China

Site Member

Add to cart
Residual Current Type B 2P 4P 10KA RCCB Circuit Breaker

... DC currents that may results from rectifying circuits and high frequency AC residual currents.It protects in the event of contunuous fault current on three phase networks. It usually is used in the field of...

WENZHOU SANTUO ELECTRICAL CO.,LTD.
Zhejiang,China

Site Member

Add to cart