Miniature Circuit Breakers (MCB)

Shop miniature circuit breakers for control panels, DIN-rail assemblies, distribution boards, machinery, lighting, and branch-circuit applications.

Selection factors include UL 489 or UL 1077 application, voltage, poles, amp rating, interrupting rating, B/C/D trip curve, terminal arrangement, supplementary contacts, and mounting dimensions. An MCB with the same amp rating is not automatically an approved replacement.

Send the exact catalog number and label photos to sales@ampstate.com for technical matching. View all circuit breakers.

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Allen-Bradley 140M-C2E-C16 - Standard Magnetic Trip Breaker Motor Protection - Standard Magnetic Trip Breaker Motor Protection

General Electric | AMCB35KM | Circuit Breaker

Regular price $310.00
Sale price $310.00 Regular price
Unit price
The General Electric AMCB35KM Circuit Breaker is a purpose-built, maintenance-ready solution designed for professionals who...
Allen-Bradley 140M-C2E-C16 - Standard Magnetic Trip Breaker Motor Protection - Standard Magnetic Trip Breaker Motor Protection

Industrial 3MCB400R 400A 4-Pole 208 V Circuit Breaker

Regular price $25,482.00
Sale price $25,482.00 Regular price
Unit price
Meet the Industrial 3MCB400R 400A 4-Pole 208 V Circuit Breaker — a robust overcurrent protection...
General Electric AMCB6FJFPTF 250A 600 V Circuit Breaker Potential Transformer - Circuit Breaker

General Electric AMCB6FJFPTF 250A 600 V Circuit Breaker Potential Transformer

Regular price $4,807.00
Sale price $4,807.00 Regular price
Unit price
General Electric AMCB6FJFPTF 250A 600 V Circuit Breaker Potential Transformer is a purpose-built solution designed...
ABB MCB-10G 6A 230 V Industrial Electrical Component - Industrial Electrical Component

ABB MCB-10G 6A 230 V Industrial Electrical Component

Regular price $102.00
Sale price $102.00 Regular price
Unit price
ABB Industrial Electrical Component — Part Number MCB-10G. Current rating: 6 A Voltage rating: 230...
Eaton 1MMCBK Circuit Breaker - Circuit Breaker

Eaton 1MMCBK Circuit Breaker

Regular price $604.00
Sale price $604.00 Regular price
Unit price
The Eaton 1MMCBK Circuit Breaker is a genuine Eaton replacement part engineered to protect electrical...
General Electric IZAMCB6SF Circuit Breaker - Circuit Breaker

General Electric IZAMCB6SF Circuit Breaker

Regular price $510.00
Sale price $510.00 Regular price
Unit price
General Electric IZAMCB6SF Circuit Breaker is the OEM replacement part designed for GE panels that...
ABB MCB-10BG 6A 230 V Industrial Electrical Component - Industrial Electrical Component

ABB MCB-10BG 6A 230 V Industrial Electrical Component

Regular price $70.00
Sale price $70.00 Regular price
Unit price
ABB Industrial Electrical Component — Part Number MCB-10BG. Current rating: 6 A Voltage rating: 230...
ABB MCBH-00-OS Contact Block - Contact Block

ABB MCBH-00-OS Contact Block

Regular price $460.00
Sale price $460.00 Regular price
Unit price
MCBH-00-OSThe ABB MCBH-00-OS is a contact block used for industrial electrical service, maintenance, and replacement...
GE AMCB6EYFP 100A 3P 480V Circuit Breaker | AmpState - Circuit Breakers

GE AMCB6EYFP 100A 3P 480V Circuit Breaker | AmpState

Regular price $10.00
Sale price $10.00 Regular price
Unit price
The GE AMCB6EYFP 100A 3P 480V Circuit Breaker is built for everyday electrical work, delivering...
MCB Electrical Component | AmpState - Electrical Components

MCB Electrical Component | AmpState

Regular price $810.00
Sale price $810.00 Regular price
Unit price
MCB Meet the (Brand Not Specified) MCB - a electrical component selected for electrical distribution,...
ABB AMCB4FJFP Electrical Component Bolt-On | AmpState - Electrical Components

ABB AMCB4FJFP Electrical Component, Bolt-On | AmpState

Regular price $10.00
Sale price $10.00 Regular price
Unit price
AMCB4FJFP The ABB AMCB4FJFP is a electrical component commonly used for electrical distribution, control, and...

GE AMCB6EBFP 3P 600V Electrical Component, Bolt-On | AmpState

Regular price $10.00
Sale price $10.00 Regular price
Unit price
AMCB6EBFP Built for everyday electrical work, the GE AMCB6EBFP is a electrical component used in...
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