Westinghouse | FD1045 | Circuit Breaker | 45A | 1-Pole | 277V | Bolt-On

Introducing the Westinghouse FD1045 Circuit Breaker — a precise, single-pole protective device engineered for 277V circuits that demand dependable overcurrent protection. This 45A, 1-pole breaker is built for straightforward replacement, meticulous retrofits, and reliable maintenance in commercial and industrial environments.

Core specifications

• Amperage: 45A
• Pole: 1-Pole
• Voltage: 277V
• Mounting: Bolt-On
• Part Number: FD1045

Why this Westinghouse FD1045 stands out

• The FD1045 part number is the most reliable indicator for matching fit and ratings in your panel or load center.
• Bolt-On mounting delivers a secure, durable connection ideal for installations where vibration resistance and stable service are essential.
• Specifically suited for commercial lighting, auxiliary equipment, and other 277V applications where precise 45A protection is required.
• Designed to simplify upkeep, retrofit projects, and orderly replacements without sacrificing performance or safety.

Ideal applications and use cases

This 1-pole, 45A breaker is well-suited for commercial environments with 277V electrical systems, such as lighting panels, HVAC controls, and auxiliary circuits. It’s a practical choice for replacements in existing installations where you need a like-for-like part that preserves circuit protection integrity while minimizing downtime.

Installation and safety tips

• Verify fitment: Before ordering or installing, confirm that the FD1045 matches your panel’s catalog and the specific circuit requirements.
• Power-down and safety: Always de-energize the service and follow local electrical codes when replacing breakers. Use appropriate PPE and verify absence of voltage.
• Secure mounting: Install the breaker in its intended slot with proper bolt engagement to ensure reliable operation under load.
• Post-install checks: After replacement, restore power and test the protected circuit for normal operation and trip integrity.

Choose the Westinghouse FD1045 for a dependable, same-series replacement that aligns with your 277V, 45A single-pole protection needs. When in doubt, rely on the FD1045 part number as your guide to compatibility and performance, keeping your electrical system safe and compliant.