The Eaton CH340 is a 3-pole, 40-amp plug-in molded‑case circuit breaker designed for overcurrent protection in three‑phase electrical distributions. As part of the CH series, this plug‑in unit interrupts faults quickly to protect conductors and connected equipment in three‑phase circuits. It fits standard CH plug‑in configurations used in industrial or commercial panels and is intended for applications that require compact, reliable three‑phase protection.
