Square D FGA34070 3 Pole I Line Circuit Breaker

Square D FGA34070 3-pole I-Line molded-case circuit breaker delivers precise protection for 3‑phase 480Y/277 VAC circuits in I‑Line panelboards. This 70‑amp device features a three‑pole design with I‑Line plug‑in mounting that simplifies installation in compatible Square D assemblies. With a thermal‑magnetic trip mechanism and HACR‑type characteristics, it provides reliable protection for motors, HVAC equipment, compressors, and general loads while preventing short‑circuit damage and overloads. Rated for 60 Hz operation and commonly used in commercial and industrial distributions, the unit is part of Square D’s PowerPact family and is designed for robust interrupting performance in a compact molded‑case form. When selecting protection for a 3‑phase 480Y/277 V system, this breaker offers dependable switching with predictable trip behavior and broad environmental tolerance suitable for up to 40°C ambient temperatures.