3WL1340-4AA76-5FA4-Z C22+R16+R21

The 3WL1340-4AA76-5FA4-Z C22+R16+R21 air circuit breaker from Siemens is a robust and reliable solution for demanding power distribution applications. This 4-pole, size 3 circuit breaker is designed for withdrawable mounting within a slide-in module frame, adhering to IEC standards. It boasts a rated current (In) of 4000 A and is suitable for systems up to 690 V at 50/60 Hz AC. The breaker offers a high ultimate short-circuit breaking capacity (Icu) of 100 kA at 500 V, ensuring effective protection against fault currents. It features a rear horizontal connection for simplified installation and maintenance. The operating mechanism is motorized/manual, incorporating a spring charging motor compatible with AC 50/60 Hz 110-127 V AC or 110-125 V DC. Activation is achieved via 50/60 Hz 110 V AC, 110 V DC. This model includes a 1st auxiliary release, specifically a shunt release "F", F1 rated for 50/60 Hz 110 V AC/110 V DC with a 100% on-load factor. Furthermore, it is equipped with 4NO+4NC contacts, C22= Ready-to-close signaling, R16= Position signaling switch, withdrawable part 6 changeover contacts, and R21= Shutter 2-part can be locked with bracket lock.