Part	Coil Power	Release Time	Operate Time	Switching Voltage AC (Max)	Contact Rating (Current)	Coil Voltage	Features	Operating Temperature (Min)	Operating Temperature (Max)	Termination Style	Mounting Type	Must Operate Voltage	Pin Count	Contact Form
Siemens 3RT20172BG41	4 W	13 ms	100 ms	690 VAC	12 A	125 VDC	Auxiliary Contacts	-25 °C	60 °C	Screw Terminal	Chassis Mount DIN Rail	100 V	3 pins	3 A Form PST-NO
Siemens 3RT20171WB41	1.6 W	20 ms	120 ms	690 VAC	12 A	24 VDC	Auxiliary Contacts	-25 °C	60 °C	Screw Terminal	Chassis Mount DIN Rail	20.4 VDC	3 pins	3 A Form PST-NO
Siemens 3RT20171FB42	4 W	65 ms	100 ms	690 VAC	12 A	24 VDC	Auxiliary Contacts	-25 °C	60 °C	Screw Terminal	Chassis Mount DIN Rail	19.2 V	3 pins	3 A Form PST-NO
Siemens 3RT20172KG41								-25 °C	60 °C	Spring Terminal
Siemens 3RT20174AK61	36 VA	13 ms	35 ms	690 VAC	12 A	120 V	Auxiliary Contacts	-25 °C	60 °C	Screw Terminal	Chassis Mount DIN Rail	96 V	3 pins	3 A Form PST-NO
Siemens 3RT20172LB42	2.8 W	20 ms	130 ms	690 VAC	12 A	24 VDC	Auxiliary Contacts	-25 °C	60 °C	Screw Terminal	Chassis Mount DIN Rail	16.8 VDC	3 pins	3 A Form PST-NO
Siemens 3RT20172BB421AA0	4 W	13 ms	100 ms	690 VAC	12 A	24 VDC	Auxiliary Contacts	-25 °C	60 °C	Screw Terminal	Chassis Mount DIN Rail	19.2 V	3 pins	3 A Form PST-NO
Siemens 3RT20172BF42	4 W	13 ms	100 ms	690 VAC	12 A	110 V	Auxiliary Contacts	-25 °C	60 °C	Screw Terminal	Chassis Mount DIN Rail	88 V	3 pins	3 A Form PST-NO
Siemens 3RT20171AN21	33 VA	13 ms	35 ms	690 VAC	12 A	220 V	Auxiliary Contacts	-25 °C	60 °C	Screw Terminal	Chassis Mount DIN Rail	187 VAC	3 pins	3 A Form PST-NO
Siemens 3RT20171AH02	33 VA	13 ms	35 ms	690 VAC	12 A	48 V	Auxiliary Contacts	-25 °C	60 °C	Screw Terminal	Chassis Mount DIN Rail	40.8 VDC	3 pins	3 A Form PST-NO