3WL1112-3CB45-4GA2 SIEMENS

The 3WL1112-3CB45-4GA2 Siemens is a robust and reliable 4-pole withdrawable circuit breaker designed for comprehensive circuit protection and control. Compliant with IEC standards, this size I breaker is engineered to handle a rated current (In) of 1250A at up to 690V AC, operating at 50/60Hz. It boasts a high ultimate short-circuit breaking capacity (Icu) of 66kA at 500V, ensuring effective protection against overcurrents and short circuits. The rear connection is horizontally oriented for streamlined installation within electrical panels. Equipped with an ETU 25 overcurrent release, it offers adjustable LSI (Long-Short-Instantaneous) protection settings, ranging from 0.4 to 1 times the rated current, providing tailored protection for diverse load requirements. The breaker features a motorized/manual operating mechanism powered by a spring charging motor, compatible with AC 50/60 Hz 208-240 V or 220-250 V DC. Activation is facilitated by AC 50/60 Hz 230 V or 220 V DC. It includes a 1st auxiliary release with a shunt release "F", F1 rated for 50/60 Hz 230 V AC/220 V DC with a 100% on-load factor. The breaker is configured with 2 normally open (NO) and 2 normally closed (NC) auxiliary contacts for enhanced monitoring and control capabilities. This model does not include a 2nd auxiliary release.