Fuji Electric SA53B - 50A, Circuit Breaker

The Fuji Electric SA53B 50A Circuit Breaker is purpose-built to shield your power distribution from overloads and short circuits. In demanding industrial, commercial, and OEM environments, dependable protection isn't optional—it's essential—and the SA53B delivers it with precision.

Designed for panelboards, switchboards, control panels, and OEM equipment, this 50A breaker integrates smoothly into Fuji Electric ecosystems, providing consistent performance across distribution panels and motor control centers.

• Reliable 50A protection: Anchors feeders and critical loads against overloads, with predictable trip behavior that minimizes downtime.
• Versatile installation: Suitable for panelboards, switchboards, control panels, and OEM assemblies—wherever robust overcurrent protection is needed.
• Industrial-grade reliability: Built to endure the rigors of continuous operation in demanding environments.
• Efficient lifecycle management: Part of Fuji Electric's trusted protection family, with support and service available through standard industrial channels.

Ideal use cases

• Protect feeder circuits and motors in distribution panels and motor control centers.
• Integrate into OEM equipment to ensure safe, compliant power distribution for manufactured systems.
• Upgrade existing panelboards or switchboards that require a robust 50A protection device.

Product highlights

• Current rating: 50 A
• Breaker type: Circuit Breaker
• Model: SA53B
• Applications: Panelboards, switchboards, control panels, and OEM equipment

Choosing the Fuji Electric SA53B means selecting a trusted component engineered to support safe operation and reliable uptime in critical power systems. For engineers and technicians maintaining facilities that rely on steady, protected electrical distribution, this 50A circuit breaker offers a straightforward, dependable solution.