Motor-Circuit Protectors (MCPs)

Motor circuit protectors are circuit breakers specifically designed to protect motors from damage caused by short circuits. When coupled with a contactor and overload relay, they are a critical part of meeting electrical code requirements for motor branch circuit protection.

NOARK’s MCPs are fully compliant with both UL and CSA standards and provide the convenience of a re-settable breaker, with the short circuit performance that is required in today’s industrial power systems. Backed by our industry leading 5-year warranty, the choice is simple for machine OEMs and panel builders.

A black 150A circuit breaker with green accents; rectangular with labels and multiple connection holes; branded "NOARK.

Motor Circuit Protectors

• 6 Frames sizes – 3A through 1200A
• IC ratings Up to 100kA at 480Vac
• Operational voltage – up to 600 Vac
• Magnetic protection
• Available in 3-pole

Industrial pumps with blue motor housings and pipes in a facility setting.

NOARK 3-Pole MCPs: Ensuring Motor and Cable Safety Across Various Frame Sizes

NOARK Electric offers a complete range of 3 pole Molded Case Motor Circuit Protectors (MCPs, magnetic or short circuit protection only) which are used to protect the cables feeding three phase motors in six frame sizes: M1M – 150A, M2M – 250A, M3M – 400A, M4M – 600A, M5M – 800A, and M6M – 1200A. Each frame size offers a range of interrupting ratings at 240-690 Vac and 250-600 Vdc.

Features

Overload protection for the motor (typically an overload relay).

A means of disconnecting power from the circuit.

Short circuit protection for the cables.

No compatible accessories listed yet.

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