The Eaton GHB3040 is a 3-pole molded case circuit breaker (MCCB) rated for 40A, designed to protect three‑phase electrical circuits. It is specified for 480Y/277 VAC operation and also carries a 125/250 VDC rating for DC applications. This model is intended for use in commercial or industrial panels to protect feeders and motor circuits where precise overcurrent protection is required. Part of Eaton’s molded‑case breaker family, the GHB3040 combines a compact three‑pole footprint with proven protection performance.
