Westinghouse | A1LC150 | Circuit Breaker | 3-Pole

Meet the Westinghouse A1LC150 3-Pole Circuit Breaker—a purpose-built solution for reliable protection in maintenance, retrofit, and replacement projects. This unit is specified for exact compatibility, ensuring you’re not guessing when sourcing components for Westinghouse panels. The A1LC150 is the definitive reference for three-pole configurations that keep a three-phase system safe and up to code.

What makes the A1LC150 3-Pole stand out

• Exact part reference: A1LC150 guarantees you’re selecting the correct breaker for your specific Westinghouse panel family, reducing the risk of incompatible replacements.
• Three-pole configuration: Protects three energized conductors, ideal for 3-phase equipment, motors, and process controls common in commercial and light industrial settings.
• Retrofit-ready: Designed for straightforward swaps into existing installations with matching specs, helping minimize downtime during upgrades or repairs.
• Clear compatibility guidance: Emphasizes verifying fit and ratings before ordering, so you always match the right specifications to your panel.

Ideal use cases

This breaker excels in scenarios such as:

• Upgrading aging panels to support 3-phase loads in manufacturing, HVAC, and processing environments.
• Replacing worn or tripped units in service entrances or distribution panels that rely on Westinghouse A1LC150 compatibility.
• Retrofits where three-pole protection is required for motor control circuits and multi-line panels.

How to verify compatibility

1. Check your panel’s label for the required part number and confirm it matches A1LC150, with a 3-Pole configuration.
2. Verify the voltage and current ratings listed for your panel and the circuit being protected align with the A1LC150’s specifications.
3. Ensure mounting and connection provisions match your panel type (bus, terminals, or mounting scheme).
4. Rely on the part number as the primary reference for compatibility to avoid mismatches and installation delays.

Installation and safety notes

Follow all relevant electrical codes and safety practices during installation. Always ensure the main power is disconnected and use proper lockout/tagout procedures. If you’re not a licensed professional, engage a qualified electrician for the replacement or retrofit and for post-installation testing to verify proper operation.

Summary: For maintenance, retrofit, or replacement projects that require a precise 3-pole solution from Westinghouse, the A1LC150 delivers dependable three-phase protection with a clear path to compatibility. Remember to confirm fit and ratings before ordering to ensure a smooth installation and uninterrupted power protection.