Zinsco R3820 - 20A, 2-Pole, Circuit Breaker

Meet the Zinsco R3820 — a 20A, 2-Pole circuit breaker crafted for dependable overcurrent protection in demanding power environments. Built to fit panelboards, switchboards, and control panels, it brings precise protection where it matters most in industrial, commercial, and OEM settings.

Why the Zinsco R3820 stands out

Designed for reliability, this 2-pole breaker interlocks two conductors, enabling a true simultaneous disconnect. That means safer maintenance, clearer fault response, and better control over multi-wire circuits in complex distribution setups. With a 20A rating, it aligns well with common motor and lighting circuits, delivering targeted protection without unnecessary trips.

• Current rating: 20A
• Poles: 2-Pole
• Breaker type: Circuit Breaker

Perfect use cases

• Panelboards in manufacturing lines where compact, reliable 2-pole protection is essential.
• Switchboards in commercial facilities requiring robust overcurrent safeguards for critical feeders.
• Motor control centers (MCCs) that depend on quick, dependable tripping to protect motors and downstream devices.

What problems it solves

The R3820 provides immediate interruption of fault currents across two conductors, helping prevent electrical damage, reduce downtime, and improve safety during maintenance. Its integration into Zinsco-compatible ecosystems supports streamlined upgrades or replacements in existing installations, ensuring consistent protection across distribution panels and control panels.

Installation and best practices

Install the Zinsco R3820 in compatible panel hardware where a 20A, 2-Pole circuit breaker is specified. For optimal performance, ensure proper seating and secure termination of both poles, and verify compatibility with your panelboard or switchboard model. Always follow the latest electrical codes and the panel manufacturer’s guidance when selecting and installing protective devices.

Who should consider this breaker

Facilities managers, electrical engineers, and OEM integrators overseeing industrial, commercial, or manufacturing environments will find the Zinsco R3820 to be a focused, dependable solution for safeguarding power distribution and motor-driven loads.