Eaton NSB QC2040 two-pole miniature circuit breaker rated 40 A at 240 V for single‑phase systems (50/60 Hz). This 2P MCB interrupts both conductors of a 240 V circuit to provide overcurrent protection in electrical installations. As part of the QC2040 family, it is specified for 1Ph operation and is designed to meet standard protection needs when a 40 A, 240 V, 50/60 Hz MCB is required.
