Specification	3RH21222JB40

Coil Power	2.8 W
Coil Voltage	24 VDC
Contact Form	B, PST-2NO/2NC, Form, A, 2
Contact Rating (Current)	10 A
Features	Auxiliary Contacts
Mounting Type	Chassis Mount, DIN Rail
Must Operate Voltage	16.8 VDC
Operate Time	130 ms
Operating Temperature (Max)	60 °C
Operating Temperature (Min)	-25 °C
Pin Count	4
Release Time	65 ms
Switching Voltage AC (Max)	690 VAC
Termination Style	Spring Terminal

3RH21222 Series

Part	Coil Power	Operate Time	Release Time	Operating Temperature (Min)	Operating Temperature (Max)	Coil Voltage	Contact Rating (Current)	Mounting Type	Features	Must Operate Voltage	Termination Style	Pin Count	Contact Form	Switching Voltage AC (Max)
Siemens 3RH21222LF400LA0	13 W	130 ms	20 ms	-40 °C	70 °C	110 V	10 A	Chassis Mount DIN Rail	Auxiliary Contacts	77 VAC	Spring Terminal	3 pins	PST-2NO/1NC	690 VAC
Siemens 3RH21222BM40	4 W	100 ms	13 ms	-25 °C	60 °C	220 V	10 A	Chassis Mount DIN Rail	Auxiliary Contacts	176 VAC	Spring Terminal	4	2 A B Form PST-2NO/2NC	690 VAC
Siemens 3RH21222AV60	37 VA	33 ms	15 ms	-25 °C	60 °C	480 VAC	10 A	Chassis Mount DIN Rail	Auxiliary Contacts	408 VAC	Spring Terminal	4	2 A B Form PST-2NO/2NC	690 VAC
Siemens 3RH21222KF40	2.8 W	130 ms	20 ms	-25 °C	60 °C	110 V	10 A	Chassis Mount DIN Rail	Auxiliary Contacts	77 VAC	Spring Terminal	4	2 A B Form PST-2NO/2NC	690 VAC
Siemens 3RH21222LJ80	2.8 W	130 ms	20 ms	-25 °C	60 °C	72 VDC	10 A	Chassis Mount DIN Rail	Auxiliary Contacts	50.4 VDC	Spring Terminal	4	2 A B Form PST-2NO/2NC	690 VAC
Siemens 3RH21222MB400KT0	1.6 W	120 ms	20 ms	-25 °C	50 °C	24 VDC	10 A	Chassis Mount DIN Rail	Auxiliary Contacts	20.4 VDC	Spring Terminal	4	2 A B Form PST-2NO/2NC	690 VAC
Siemens 3RH21222BA40	4 W	100 ms	13 ms	-25 °C	60 °C	12 VAC	10 A	Chassis Mount DIN Rail	Auxiliary Contacts	9.6 VDC	Spring Terminal	4	2 A B Form PST-2NO/2NC	690 VAC
Siemens 3RH21222AH00	37 VA	33 ms	15 ms	-25 °C	60 °C	48 V	10 A	Chassis Mount DIN Rail	Auxiliary Contacts	40.8 VDC	Spring Terminal	4	2 A B Form PST-2NO/2NC	690 VAC
Siemens 3RH21222LF401LA0	13 W	130 ms	20 ms	-40 °C	70 °C	110 V	10 A	Chassis Mount DIN Rail	Auxiliary Contacts	77 VAC	Spring Terminal	3 pins	PST-2NO/1NC	690 VAC
Siemens 3RH21222BN40	4 W	100 ms	13 ms	-25 °C	60 °C	250 VDC	10 A	Chassis Mount DIN Rail	Auxiliary Contacts	200 VDC	Spring Terminal	4	2 A B Form PST-2NO/2NC	690 VAC

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SIRIUS 2 Control Relay Specification and Catalog

3RH21222JB40 | Datasheet