Accessories circuit-breaker 3WL Electronic Trip Unit ETU76B, ETU release 2, LSIN protection adjustable, without rating plug, with metering function...

Accessories circuit-breaker 3WL Electronic Trip Unit ETU76B, ETU release 2, LSIN protection adjustable, without rating plug, with metering function Plus, I, U, P,W, Q, f, cos phi, harmonics and harm. distortion factor, with display, without ground fault module, with cubicle bus connection; only for 3WL1 Upgrade in contacts by customer himself.