Zinsco RC3850 - 50A, 2-Pole, Circuit Breaker

Meet the Zinsco RC3850—a purpose-built 50A, 2-pole circuit breaker engineered for dependable overcurrent protection in demanding electrical environments. Designed to safeguard feeders, motors, and control circuitry, this breaker brings precise protection where cleanliness of power and safety matter most.

• 50A current rating provides targeted protection for feeders and motor circuits without nuisance trips in everyday industrial and commercial loads.
• 2-pole configuration ensures simultaneous disconnection of both hot conductors, enhancing safety on 240V circuits and in motor control centers.
• Versatile mounting for panelboards, switchboards, and control panels—a reliable choice for a range of distribution setups in industrial, commercial, and OEM applications.
• Focused on dependable operation with overcurrent protection that helps prevent equipment damage, electrical fires, and unexpected downtime in distribution panels and MCCs.
• Durable construction for challenging environments designed to perform where continuous, safe operation is critical.

Ideal for a variety of use cases, the Zinsco RC3850 is well-suited for protecting feeders in manufacturing lines, HVAC and climate control systems in commercial facilities, and OEM equipment packages that require robust, codified protection. It’s a practical choice for electrical distributors and installers who need a trusted 2-pole breaker that delivers reliable performance in panelboards, switchboards, and control panels.

Why choose the RC3850? It combines a clear, straightforward 50A protection profile with a two-pole design that simplifies wiring layouts and enhances fault clearance. This makes it easier to meet electrical codes and ensure safe, predictable operation across distribution panels and motor control centers.

Installation and maintenance tips — ensure compatibility with your existing Zinsco systems and follow all local codes during panel setup. Verify correct wiring alignment for both poles and consult the manufacturer’s installation guidelines for torque recommendations and replacement intervals to maintain optimal protection.