Zinsco R38-30 - 30A, 2-Pole, Circuit Breaker

The Zinsco R38-30 is a purpose-built 30A, 2-pole circuit breaker engineered to deliver dependable overcurrent protection in demanding electrical environments. Designed for seamless integration with panelboards, switchboards, and control panels, this breaker helps keep critical systems safe in industrial, commercial, and OEM applications.

• Current rating: 30A
• Poles: 2-Pole
• Breaker type: Circuit Breaker

Why the 2-pole design matters: it disconnects both live conductors on 240V circuits, providing a safer, more reliable shutdown during faults or overloads. This dual-pole operation reduces the risk of dangerous line-to-line faults and simplifies fault isolation in distribution panels and motor control centers.

Key benefits and practical value

• 30A rating protects branch circuits and motor feeders from overloads without nuisance trips, helping extend equipment life.
• Robust performance in real-world environments: Built to withstand the rigors of industrial and commercial electrical rooms, where steady protection and quick disconnection are essential.
• Versatile installation options: Suitable for use in panelboards, switchboards, and control panels across a range of applications—from manufacturing floors to large office complexes.
• Streamlined safety for 240V circuits: The 2-pole configuration ensures simultaneous interruption of both hot legs, enhancing protection and reducing downtime during maintenance or fault events.

Ideal use cases

• Industrial distribution panels supporting conveyors, pumps, and processing equipment
• Commercial panelboards feeding HVAC, lighting, and critical electrical loads
• OEM electrical assemblies requiring reliable, drop-in replacement circuit protection
• Motor control centers needing dependable overcurrent protection for motor feeders

Installation and best practices

• Verify compatibility with existing Zinsco panel systems and follow manufacturer torque specifications during installation.
• Use as a direct replacement in compatible 2-pole slots to ensure proper seating and tripping performance.
• Keep current protection aligned with downstream conductor sizing and load requirements to prevent nuisance trips and ensure safe operation.

With the Zinsco R38-30, you’re choosing a purpose-driven overcurrent protector that aligns with real-world demand—protecting people, equipment, and processes in busy industrial and commercial environments. Whether upgrading an aging panel, configuring a new control center, or stocking OEM assemblies, this 30A, 2-pole circuit breaker delivers clear, actionable protection where it matters most.