The 1-1423673-2 is a rocker-actuated thermal circuit breaker and power switch from the W51 series, designed to provide circuit protection and power switching in a single compact unit. It features a maximum operating voltage of 125VAC or 250VAC (model dependent), with current ratings available from 5 to 20 amps, and supports both non-illuminated and illuminated configurations with optional indicator lamps. The device has a dielectric strength of 1,500VAC, an interrupt capacity of 1,000 amps per UL 1077 standard, and operates over a temperature range of 0°C to +60°C for 10-20A models and 0°C to +50°C for 5-8A models. It snaps into a standard 1.122 x 0.531 inch (28.5 x 13.5 mm) panel cutout and is available with multiple termination options including quick connect, solder, and right-angle PC terminals. This breaker is ideal for applications requiring compact, trip-free circuit protection with optional visual indication, and is UL 1077 recognized and VDE 0642/EN60934 approved.