3WL1232-3DG45-4GN4 SIEMENS

The 3WL1232-3DG45-4GN4 Siemens is a robust and reliable 4-pole withdrawable circuit breaker designed for demanding power distribution applications. Compliant with IEC standards, this size II circuit breaker is engineered to handle a rated current (In) of 3200A 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 rear connection is horizontally oriented for streamlined installation within electrical panels. Equipped with an ETU 27 overcurrent release, it offers adjustable LSING protection, allowing fine-tuning of protection settings from 0.4 to 1 times the rated current. Integrated ground fault and neutral protection further enhance safety and system integrity. The circuit breaker features a motorized/manual operating mechanism with 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, 220 V DC. It includes a 1st auxiliary release (Shunt release "F", F1) operating at 50/60 Hz 230 V AC/220 V DC with a 100% on-load factor, along with a 2nd auxiliary release ("R", F3) for undervoltage protection, providing instantaneous response at 208-240 V AC, 220-250 V DC. The breaker is configured with 4 normally open (NO) and 4 normally closed (NC) auxiliary contacts for comprehensive monitoring and control capabilities.