Siemens 3UG4616-1CR20, For 3-Phase Volt. With N Cond. Reversible Phase Sequence Phase Failure 3X 160 To 690 V Ac 50 To 60 Hz Under And Ocervolt. 160-690 V Hysteresis 1-20 V Each 0-20S For Umin And Umax 1 W For Rpm 1 W For Umax Screw Terminal Follow-On Product For 3Ug3042-1Bp50