Siemens 3WA1225-3AE34-8EA4

The Siemens 3WA1225-3AE34-8EA4 Air Circuit Breaker is designed for reliable and efficient protection of electrical systems. This withdrawable circuit breaker features a guide frame and complies with IEC 60947-2 standards, ensuring high performance and safety. With a frame size of 2 and 3 poles, it supports a rated current of 2500A and operates up to 690V AC at 50/60Hz. The breaking capacity is Icu=66/50kA at 500/690V, making it suitable for demanding applications.

The ETU600 LSI trip unit is upgrade-ready and includes a color display, Bluetooth, and USB interface for enhanced monitoring and control. Protection features include long-time, short-time, instantaneous, and neutral protection, requiring an external N-sensor. The unit also includes a trip alarm switch (1xCO), rear connection flange, and guide frame with shutter.

Operating mechanisms are both manual and motorized, supporting 208-240 V AC / 220-250 V DC. Additional features include storage status and ready-to-close signaling switches, auxiliary switches (4NO+4NC), closing coil (CC) for continuous duty, and shunt trip (ST) suitable for continuous duty. This model does not include remote trip alarm reset coil (RR) or a second shunt trip.

Applications include industrial power distribution, infrastructure projects, and commercial buildings where reliable circuit protection is critical.