Accessory circuit-breaker 3WL5 Electronic trip unit ETU45B, LSIN protection adjustable, without rating plug, with metering function Plus, I, U, P,W, Q, f, cos phi, harmonics and harm. distortion factor, without display, without ground fault module, with cubicle bus connection approved according to UL489 Accessory and spare parts for open circuit breakers 3WL up to 6300 A. The accessories and replacement parts of the 3WL air circuit breaker can easily be replaced or retrofitted at any time. The sizes have uniform accessories and are available worldwide. The accessories and replacement parts of the 3WL air circuit-breakers are especially characterized by: 1. Simple to configure, set up and retrofit due to modular design with just 3 sizes and uniform accessories. 2. RoHS-compliant. 3. Replaceability of the main contacts by customer himself.