Eaton WMS-1C20 Circuit Breaker, 20A, 1-Pole, 120V

The Eaton WMS-1C20 is a purpose-built circuit breaker designed for industrial service, maintenance, and replacement projects. With a 120V rating and a single pole, this 20A breaker delivers reliable single‑phase protection for control panels, equipment enclosures, and essential machinery in demanding environments.

Key specifications

• Amperage: 20 A
• Poles: 1
• Voltage: 120V
• Manufacturer: Eaton
• Part Number: WMS-1C20
• Product Type: Circuit Breaker

Why this matters for your operation

Industrial systems rely on dependable overcurrent protection to prevent damage from short circuits and overloads. The WMS-1C20 provides a straightforward, single‑pole solution for safeguarding 120V circuits in environments such as control rooms, machine bays, and lighting feeds. Its 20A capacity is ideal for moderate-load circuits common in industrial setups, helping keep downtime to a minimum and protecting both wiring and connected equipment.

Who is it ideal for?

• Maintenance teams performing panel upgrades or replacements in warehouses, factories, or manufacturing floors
• Electrical contractors seeking a reliable 120V, 1‑pole breaker for single‑phase circuits
• Facilities managers replacing blown breakers in service panels or control enclosures

Compatibility and installation tips

Verify fit by part number and application requirements:

• Confirm the part number WMS-1C20 matches your panel’s listing and the circuit’s needs
• Ensure the breaker’s amperage, voltage, and pole configuration align with the target circuit
• Follow the panel manufacturer’s installation instructions and local electrical codes

If you’re unsure about compatibility, send us a message — we’ll help verify the part number and confirm whether this WMS-1C20 fits your application.

Practical considerations and care

• Keep breakers in their original packaging until installation to avoid contamination
• Perform a quick inspection for any signs of damage before replacement
• Test the circuit after installation to ensure proper operation and trip function

Ready to secure your 120V circuit with a trusted Eaton solution? The WMS-1C20 combines straightforward single‑pole protection with the reliability Eaton is known for in industrial settings. Verify the part number against your panel requirements, or reach out for personalized compatibility support.