3WL1225-3CB45-4GA2 SIEMENS

The 3WL1225-3CB45-4GA2 Siemens is a robust, withdrawable circuit breaker designed for comprehensive circuit protection and control. This 4-pole breaker, conforming to IEC standards, boasts a rated current (In) of 2500A, making it suitable for high-power applications up to 690V AC at 50/60Hz. Its size II frame allows for efficient integration into various electrical systems. The breaker's impressive ultimate short-circuit breaking capacity (Icu) of 80kA at 500V ensures reliable performance under fault conditions. Featuring a rear horizontal connection, it simplifies installation and maintenance procedures. The ETU 25 overcurrent release provides adjustable LSI (Long-time, Short-time, Instantaneous) protection, allowing for precise tailoring to specific load requirements with settings ranging from 0.4 to 1 times the rated current. Equipped with a motorized/manual operating mechanism, it includes a spring charging motor compatible with AC 50/60 Hz 208-240 V or 220-250 V DC, alongside an activation circuit for AC 50/60 Hz 230 V and 220 V DC. The inclusion of a first auxiliary release and a shunt release "F", F1 rated for 50/60 Hz 230 V AC/220 V DC with a 100% on-load factor, enhances its operational flexibility. Furthermore, it is configured without a second auxiliary release but includes 2 normally open (NO) and 2 normally closed (NC) auxiliary contacts for signaling and control purposes.