3WJ air circuit breakers: simplicity, efficiency, and reliability in power distribution.
Comprehensive solutions with advanced protection, flexible design and specialized technical support to ensure the safety and continuity of your electrical operations. Read in portuguese.
Our 3WJ Air Circuit Breakers combine simplicity, efficiency, and high reliability for power distribution systems. Featuring breaking capacities from 50 to 55kA for applications up to 440V AC, the portfolio offers flexibility through fixed or withdrawable designs and Electronic Trip Units (ETU) with comprehensive protection functions, including overload, short-circuit, and ground fault. In addition to a wide range of accessories, users have direct access to the Siemens Online Industry Support (SIOS) to ensure maximum performance and continuous safety in their operations.