Overview
The Westinghouse MCP0358CR is a molded case circuit breaker (MCP series) engineered for motor circuit protection in industrial and commercial electrical systems. Operating at 600VAC with a 7-amp rating and 3-pole configuration, this motor circuit protector delivers instantaneous trip response and adjustable protection settings ideal for motor control starters and branch circuit applications.
Key Features
- Instantaneous Trip Technology — Immediate response to short circuits and overcurrent faults, protecting connected motor loads
- Adjustable Trip Range — 18–58 amp adjustable trip settings for customizable protection tuning
- Auxiliary Switch — 1A1B auxiliary switch rated at 5 amps, 120V for remote signaling and control integration
- Molded Case Design — Durable, long-lasting construction for industrial duty cycle
- UL Approved — Meets safety and performance standards for electrical protection equipment
- Panel-Mount Configuration — Standard DIN or panel mounting for easy installation in control enclosures
Technical Specifications
- Amperage Rating: 7 Amps
- Voltage Rating: 600VAC
- Poles: 3-Pole
- Trip Type: Instantaneous
- Trip Range: 18–58 Amps (adjustable)
- Auxiliary Switch: 1A1B, 5 Amp, 120V
- Mounting: Panel mount
- Product Family: Molded Case Circuit Breakers (MCP series)
- Country of Origin: U.S.A.
- Certifications: UL approved
Typical Applications
The Westinghouse MCP0358CR is commonly deployed in:
- Motor control centers and motor starters
- Industrial pump and compressor circuits
- Machine tool branch circuits
- HVAC motor protection
- General industrial motor loads requiring rapid fault detection
Compatibility & Replacements
Compatible With
- Motor control starters and contactor assemblies
- Industrial electrical panel enclosures (600VAC, 3-phase)
- Standard DIN or panel-mount breaker rails
- Low-voltage motor protection schemes
Replaces / Drop-In Replacement For
- MCP0358R (non-CR variant)
- ITE MCP0358CR (legacy designation)
- Eaton/Cutler-Hammer equivalent 7-amp 3-pole motor circuit protectors
Works With
- Motor control starters (magnetic and programmable)
- Auxiliary switching and remote signaling systems
- Industrial automation control systems
- Panel-mount electrical distribution equipment














