Single pole thermal-magnetic circuit breaker, two button operation Trip-free, snap action mechanism Plug-in mounting with E-T-A sockets 17-P10-Si, 23-P10-Si, 63-P10-Si; or panel mounting using E-T-A clips Featuring an unprotected shunt tap terminal Blade terminals 6.3-0.8 (mm), DIN 46244-A Typical applications in process control systems, instrumentation, communications systems, rail vehicles