The Eaton FAZ-D4 is a 1-pole (1-SP/1P) miniature circuit breaker rated for 277 VAC with a 4 A current rating and a D-curve trip characteristic. This single-pole device protects a single‑phase branch circuit in 277 VAC systems by interrupting fault currents to help prevent damage to conductors and connected loads. The FAZ-D4 provides a compact, trusted solution for overcurrent protection in electrical enclosures and panels requiring reliable 277 VAC single‑phase protection.
