Fuji Electric CP31EM/3 - 3A, Circuit Breaker

Introducing the Fuji Electric CP31EM/3 – a compact 3A circuit breaker designed for dependable overcurrent protection in critical electrical systems. Built to guard panelboards, switchboards, control panels, and OEM equipment, this unit delivers precise protection where every amp matters.

In industrial, commercial, and OEM environments, reliable protection means fewer nuisance trips and less downtime. The CP31EM/3's 3A rating is ideal for protecting low- to mid-current control circuits and small feeders, while its robust construction stands up to the realities of busy electrical rooms.

Key advantages

• Exact 3A current rating targets protection for sensitive control circuits and small feeders, helping safeguard wiring insulation and connected devices.
• Dedicated overcurrent protection minimizes the risk of short circuits cascading through your distribution panels and motor control centers.
• Versatile installation suitable for panelboards, switchboards, control panels, and OEM assemblies, enabling consistent protection across equipment stacks.
• Trusted Fuji Electric performance a proven name in industrial electrical protection, offering dependable protection with every trip.

Who should consider this breaker?

Engineers and technicians designing or upgrading electrical distribution in factories, packaging lines, automated systems, and commercial installations where controlled current levels and fast, predictable trips are essential.

Practical use cases

• Protect a dedicated control circuit powering sensors, relays, and PLC I/O in a small automation cabinet.
• Provide primary protection for a compact motor control center feeding a single low-power motor or conveyor segment.
• Install in OEM assemblies that require standardized, repeatable overcurrent protection with known trip characteristics.

Installation and maintenance tips

Ensure correct electrical connections per your panel design and Fuji Electric guidelines. Regularly inspect for signs of wear or swelling on related wiring, and verify that trip settings align with the protected circuit's operating current. The CP31EM/3 is designed to deliver consistent protection across service intervals when installed in appropriate panels and enclosures.

Specification at a glance

• Current rating: 3A
• Breaker type: Circuit Breaker
• Suitable for: panelboards, switchboards, control panels, OEM equipment
• Applications: industrial, commercial, OEM