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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ABB S201U-K4A Circuit Breaker 4A 1-Pole - Circuit Breakers

ABB S200U S201U-K4A 4A 1-Pole Miniature Circuit Breaker

Regular price $460.00 CAD
Sale price $460.00 CAD Regular price
Unit price
Meet the ABB S201U-K4Aā€” a 1-pole, 4 A miniature circuit breaker built for industrial electrical...
ABB S203-K4 Circuit Breaker 4A 3-Pole - Circuit Breakers

ABB S203-K4 3-Pole 4A Miniature Circuit Breaker

Regular price $293.00 CAD
Sale price $293.00 CAD Regular price
Unit price
ABB S203-K4 Circuit Breaker is designed for demanding industrial environments, delivering dependable protection for 3-phase...
ABB S283-K10 Circuit Breaker 10A 3-Pole - Circuit Breakers

ABB S283 K10 Miniature Circuit Breaker 10A 3 Pole

Regular price $460.00 CAD
Sale price $460.00 CAD Regular price
Unit price
The ABB S283-K10 Circuit Breaker is a compact, three-pole protection device built for demanding industrial...
ABB S201-B10 - Circuit Breaker - Circuit Breaker

ABB S201-B10 10A Miniature Circuit Breaker

Regular price $154.00 CAD
Sale price $154.00 CAD Regular price
Unit price
Meet the ABB S201-B10 - Circuit Breaker, a purpose-built protection device engineered to keep demanding...
Eaton WMZT1C03 - 3A Circuit Breaker - Circuit Breaker

Eaton WMZT1C03 3A Miniature Circuit Breaker

Regular price $25.00 CAD
Sale price $25.00 CAD Regular price
Unit price
Introducing the Eaton WMZT1C03 - a 3A circuit breaker designed for dependable overcurrent protection in...
Allen-Bradley 1746-NO8V - Output Module - Output Module

General Electric 9F60MCB518 390A 2400V Industrial Fuse

Regular price $4,942.00 CAD
Sale price $4,942.00 CAD Regular price
Unit price
OverviewGeneral Electric Industrial Fuse identified by part number 9F60MCB518. Suitable for maintenance, retrofit, and replacement...
Allen-Bradley 1746-NO8V - Output Module - Output Module

Eaton 3MCB1600RBC Industrial Electrical Part

Regular price $194,149.00 CAD
Sale price $194,149.00 CAD Regular price
Unit price
OverviewEaton Industrial Electrical Part identified by part number 3MCB1600RBC. Suitable for maintenance, retrofit, and replacement...
Allen-Bradley 1746-NO8V - Output Module - Output Module

General Electric 9F60MCB524 Industrial Fuse 450A 2400V

Regular price $10,410.00 CAD
Sale price $10,410.00 CAD Regular price
Unit price
OverviewGeneral Electric Industrial Fuse identified by part number 9F60MCB524. Suitable for maintenance, retrofit, and replacement...
Allen-Bradley 140M-C2E-C16 - Standard Magnetic Trip Breaker Motor Protection - Standard Magnetic Trip Breaker Motor Protection

General Electric AMCB6FDBFP Circuit Breaker 600V 3-Pole

Regular price $2,010.00 CAD
Sale price $2,010.00 CAD Regular price
Unit price
General Electric AMCB6FDBFP Circuit Breaker is a 3-pole, 600V protection device crafted for reliable performance...
Allen-Bradley 140M-C2E-C16 - Standard Magnetic Trip Breaker Motor Protection - Standard Magnetic Trip Breaker Motor Protection

General Electric AMCB6FBFP 600V 3-Pole Circuit Breaker

Regular price $2,010.00 CAD
Sale price $2,010.00 CAD Regular price
Unit price
Meet the General Electric AMCB6FBFP, a robust 3-Pole, 600V circuit breaker designed to keep critical...
Allen-Bradley 140M-C2E-C16 - Standard Magnetic Trip Breaker Motor Protection - Standard Magnetic Trip Breaker Motor Protection

ABB MCB 10B 690V Industrial Electrical Part

Regular price $2,010.00 CAD
Sale price $2,010.00 CAD Regular price
Unit price
OverviewABB Industrial Electrical Part identified by part number MCB-10B. Suitable for maintenance, retrofit, and replacement...
Allen-Bradley 140M-C2E-C16 - Standard Magnetic Trip Breaker Motor Protection - Standard Magnetic Trip Breaker Motor Protection

ABB MCB 10 690V Industrial Electrical Part

Regular price $310.00 CAD
Sale price $310.00 CAD Regular price
Unit price
OverviewABB Industrial Electrical Part identified by part number MCB-10. Suitable for maintenance, retrofit, and replacement...
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