3WL1108-3CB45-4GN4 SIEMENS

The 3WL1108-3CB45-4GN4 Siemens is a withdrawable circuit breaker designed for robust circuit protection and control. This 4-pole circuit breaker, conforming to IEC standards, is Size I and suitable for systems up to 690V AC at 50/60Hz. It features a rated current (In) of 800A, making it ideal for high-current applications. The circuit breaker offers a high interrupting capacity (Icu) of 66kA at 500V, ensuring reliable protection against short-circuit faults. It is equipped with a rear horizontal connection for easy integration into existing power distribution systems. The overcurrent release ETU 25 provides LSI (Long-Short-Instantaneous) protection with adjustable settings 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 operating at 50/60 Hz 230 V AC/220 V DC with a 100% on-load factor, and a 2nd auxiliary release "R", F3 undervoltage release, instantaneous, operating at 208-240 V AC, 220-250 V DC. The breaker also features 4 normally open (NO) and 4 normally closed (NC) auxiliary contacts for enhanced monitoring and control capabilities.