3RH21221WB40

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COUPLING RELAY 2NO+2NC DC 24V SC

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DocumentsSIRIUS 2 Control Relay Specification and Catalog Datasheet

3RH21221WB40

Active

Siemens

COUPLING RELAY 2NO+2NC DC 24V SC

Deep-Dive with AI

DocumentsSIRIUS 2 Control Relay Specification and Catalog Datasheet

Specifications Pricing Series Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	3RH21221WB40

Coil Power	1.6 W
Coil Voltage	24 VDC
Contact Form	4PST-2NO/2NC (2 Form A, 2 Form B)
Contact Rating (Current)	10 A
Features	Auxiliary Contacts
Mounting Type	Chassis Mount, DIN Rail
Must Operate Voltage	20.4 VDC
Operate Time	120 ms
Operating Temperature [Max]	50 °C
Operating Temperature [Min]	-25 °C
Release Time	20 ms
Switching Voltage	690 VAC
Termination Style	Screw Terminal

3RH21221 Series

Part	Contact Form	Coil Voltage	Termination Style	Contact Rating (Current)	Operate Time	Mounting Type	Switching Voltage	Features	Operating Temperature [Min]	Operating Temperature [Max]	Must Operate Voltage	Coil Power	Release Time	Coil Voltage [Min]	Coil Voltage [Max]
Siemens 3RH21221KF400LA4	3PST-2NO/1NC (2 Form A 1 Form B)	110 VDC	Screw Terminal	10 A	130 ms	Chassis Mount DIN Rail	690 VAC	Auxiliary Contacts	-40 °C	70 °C	77 VDC	13 W	20 ms
Siemens 3RH21221KG400LA4	3PST-2NO/1NC (2 Form A 1 Form B)	125 VDC	Screw Terminal	10 A	130 ms	Chassis Mount DIN Rail	690 VAC	Auxiliary Contacts	-40 °C	70 °C	87.5 VDC	13 W	20 ms
Siemens 3RH21221AU00	5PST-3NO/2NC (3 Form A 2 Form B)	240 VAC	Screw Terminal	10 A	33 ms	Chassis Mount DIN Rail	690 VAC	Auxiliary Contacts	-25 °C	60 °C	204 VAC	37 VA	15 ms
Siemens 3RH21221BJ80	4PST-2NO/2NC (2 Form A 2 Form B)	72 VDC	Screw Terminal	10 A	100 ms	Chassis Mount DIN Rail	690 VAC	Auxiliary Contacts	-25 °C	60 °C	57.6 VDC	4 W	13 ms
Siemens 3RH21221BE80	4PST-2NO/2NC (2 Form A 2 Form B)	80 VDC	Screw Terminal	10 A	100 ms	Chassis Mount DIN Rail	690 VAC	Auxiliary Contacts	-25 °C	60 °C	64 VDC	4 W	13 ms
Siemens 3RH21221KF40	4PST-2NO/2NC (2 Form A 2 Form B)	110 VDC	Screw Terminal	10 A	130 ms	Chassis Mount DIN Rail	690 VAC	Auxiliary Contacts	-25 °C	60 °C	77 VDC	2.8 W	20 ms
Siemens 3RH21221AN60	4PST-2NO/2NC (2 Form A 2 Form B)		Screw Terminal	10 A	33 ms	Chassis Mount DIN Rail	690 VAC	Auxiliary Contacts	-25 °C	60 °C		37 VA	15 ms	200 VAC/DC	220 VAC/DC
Siemens 3RH21221WB40	4PST-2NO/2NC (2 Form A 2 Form B)	24 VDC	Screw Terminal	10 A	120 ms	Chassis Mount DIN Rail	690 VAC	Auxiliary Contacts	-25 °C	50 °C	20.4 VDC	1.6 W	20 ms
Siemens 3RH21221AK20	4PST-2NO/2NC (2 Form A 2 Form B)	120 VAC	Screw Terminal	10 A	33 ms	Chassis Mount DIN Rail	690 VAC	Auxiliary Contacts	-25 °C	60 °C	102 VAC	37 VA	15 ms
Siemens 3RH21221BN40	4PST-2NO/2NC (2 Form A 2 Form B)	250 VDC	Screw Terminal	10 A	100 ms	Chassis Mount DIN Rail	690 VAC	Auxiliary Contacts	-25 °C	60 °C	200 VDC	4 W	13 ms

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Box	1	$ 127.93