3WL1220-3CB45-4GA2 SIEMENS

The 3WL1220-3CB45-4GA2 Siemens is a robust and reliable 4-pole withdrawable circuit breaker designed for comprehensive circuit protection. Compliant with IEC standards, this size II breaker is engineered to handle a rated current (In) of 2000A at up to 690V AC, operating at 50/60Hz. It boasts a high ultimate short-circuit breaking capacity (Icu) of 80kA at 500V, ensuring effective protection against overcurrents. The breaker features a rear connection with a horizontal configuration, simplifying installation and maintenance. 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. The motorized/manual operating mechanism includes a spring charging motor compatible with AC 50/60 Hz 208-240 V or 220-250 V DC. Activation is supported by AC 50/60 Hz 230 V and 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, enhancing its monitoring and control capabilities; a 2nd auxiliary release is not included.