Thomas & Betts | FS320045A | Circuit Breaker | 45A | 3-Pole | 240V | Feed-Through

Power your 3‑phase systems with precision using the Thomas & Betts FS320045A Circuit Breaker. This 45A, 3‑Pole, 240V unit features a feed‑through design tailored for maintenance, retrofit, and replacement projects where exact compatibility matters. The FS320045A is the definitive reference for ensuring you match the right specifications in your panel, helping you minimize downtime and keep critical equipment protected.

• Amperage: 45A
• Poles: 3‑Pole
• Voltage: 240V
• Design: Feed‑Through

Why the FS320045A is a smart choice

• Dedicated compatibility: When servicing 3‑phase panels, this breaker provides a precise fit that aligns with common Thomas & Betts panel configurations, reducing guesswork during retrofits.
• Streamlined wiring with feed‑through: The feed‑through construction enables direct continuation of downstream feeders, cutting extra junctions and potential connection points.
• Targeted for replacements: Ideal for replacing aging or failed breakers in existing 3‑pole 240V systems without compromising circuit protection.
• Durable, field‑ready design: Built to withstand ongoing electrical demand in commercial and light industrial environments while preserving panel integrity.

Ideal use cases

• Retrofit projects in commercial panels where a precise 45A, 3‑pole 240V capacity is required.
• Maintenance and replacement of aging 3‑phase equipment in manufacturing, HVAC, and processing facilities.
• New installations where a feed‑through circuit breaker simplifies downstream wiring and reduces panel complexity.

Important note: confirm fit and ratings before ordering. The part number FS320045A is the best reference for compatibility, so double‑check your panel’s specifications and downstream wiring requirements to ensure a seamless install.