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3RH2122-1KE40 - Siemens

MPN3RH2122-1KE40

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Coupling contactor relay, 2 NO + 2 NC, 60 V DC, 0.7... 1.25* US, with integrated suppressor diode, Size S00, screw terminal suitable for PLC outputs

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Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3RH2122-1KE40 — Identification
Parameter	Value
Contactor frame size	S00

3RH2122-1KE40 — Ratings & Performance
Parameter	Value
Rated operational current, AC-12, max.	10 A
Rated value @ 400 V	3 A
Rated value @ 500 V	2 A
Rated value @ 690 V	1 A
Rated value @ 230 V	10 A
Rated value @ 24 V	10 A
Rated value @ 60 V	4.7 A
Rated value @ 110 V	3 A
Rated value @ 220 V	1.2 A

3RH2122-1KE40 — Control & Coil
Parameter	Value
Control supply voltage type	DC

3RH2122-1KE40 — Contacts & Poles
Parameter	Value
Auxiliary contact reliability	1 faulty switching per 100 million (17 V, 1 mA)

3RH2122-1KE40 — Connection & Mounting
Parameter	Value
Conductor cross-section, solid or stranded	2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), 2x 4 mm²
Conductor cross-section, finely stranded w/ ferrule	2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
Mounting method	screw and snap-on mounting onto 35 mm DIN rail