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Siemens 3RH1140-2JC40 — Contactors

Siemens 3RH1140-2JC40 SIRIUS Coupling Relay, 4 NO, 10A AC-12

MPN3RH1140-2JC40

Siemens SIRIUS coupling relay, 3RH1140-2JC40, size S00, 4 NO instantaneous contacts, 10 A at 24 V rated value AC-12, screw and snap-on mounting, IP20 front, with diode surge suppression.

Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for machine-down parts
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026

Specifications

3RH1140-2JC40 — Identification
ParameterValue
Contactor frame sizeS00
3RH1140-2JC40 — Ratings & Performance
ParameterValue
Rated value @ 400 V3 A
Rated value @ 500 V2 A
Rated value @ 690 V1 A
Rated value @ 230 V6 A
Rated value @ 24 V10 A
Rated value @ 110 V1 A
Rated value @ 220 V0.27 A
3RH1140-2JC40 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RH1140-2JC40 — Contacts & Poles
ParameterValue
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RH1140-2JC40 — Protection & Coordination
ParameterValue
Aux. switch short-circuit protection, fusefuse gL/gG: 10 A
3RH1140-2JC40 — Connection & Mounting
ParameterValue
Conductor cross-section, solid2x (0.25 ... 2.5 mm²)
Conductor cross-section, finely stranded w/ ferrule2x (0.25 ... 1.5 mm²)
3RH1140-2JC40 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
3RH1140-2JC40 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
3RH1140-2JC40 — Mechanical
ParameterValue
Width45 mm
Height60 mm
Depth73 mm

Product details

The Siemens 3RH1140-2JC40 is a SIRIUS coupling relay — a compact auxiliary contactor block designed to switch control circuits, signal lamps, PLC inputs, and small solenoid loads in a panel.

Mounts via screw or snap-on to DIN rail. Clearance at the side is 0 mm — it can butt directly against adjacent devices.

For inductive loads at higher voltages, the current capability drops: 6 A at 230 V, 3 A at 400 V, 1 A at 690 V. The 4 NO contacts are all instantaneous (no delayed or make-before-break), so timing-critical circuits need external delay modules. Shock resistance of 10g / 5 ms and 5g / 10 ms covers most industrial vibration environments.

Frequently asked questions

How do I get pricing and availability for 3RH1140-2JC40?

Submit an RFQ through this listing. Availability and current pricing are confirmed at quote time through independent distribution channels.

What is the closest functional alternative to 3RH1140-2JC40?

The 3RH2140-1BP40 is a similar SIRIUS coupling relay but with a different coil voltage and terminal arrangement — verify coil compatibility before substituting. The 3RT1015-1BB42 and 3RT1016-1BB42 are contactors, not coupling relays, so they don't drop in without rewiring.

What is the depth of 3RH1140-2JC40?

The depth is 73 mm, with a width of 45 mm and height of 60 mm — standard S00 footprint.

What wire sizes does 3RH1140-2JC40 accept?

The solid/stranded terminals accept 2x (0.25 to 2.5 mm²) per clamp.

Will 3RH1140-2JC40 drop into a panel specified for 3RT1015-1BB42?

No — the 3RT1015-1BB42 is a power contactor, not a coupling relay. The 3RH1140-2JC40 has a different coil circuit and contact arrangement; rewiring is required.

MPN
3RH1140-2JC40