ABB WMS1D05 Single Pole Circuit Breaker 5 Amp 240 VAC

The Eaton WMS1D05 is a 1-pole molded-case circuit breaker from the WMS Series, rated 5 A for 120/277 VAC circuits (part number WMS1D05, type WMS1D). It delivers thermal-magnetic overcurrent protection with long-time overload and instantaneous trip functions and uses a plug-in connection for quick, reliable panel installation. It offers an interrupting rating of up to 10 kA at 120 VAC and 6 kA at 277 VAC, making it suitable for protecting small branch circuits in commercial or light industrial panels, including lighting and control circuits. As a single-pole device, it interrupts one hot conductor in a circuit, helping isolate faults without impacting other conductors. The WMS1D05 is part of Eaton's legacy Cutler-Hammer protective family and is designed for compact protection in standard electrical enclosures that require precise 5 A protection on 120/277 VAC loads. This breaker is commonly used where small-draw loads must be protected with a compact, easily replaceable device in panelboards or switchboards, delivering dependable performance in everyday electrical installations.