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Siemens 3RH1140-1AC00-0TK0 — Contactors

Siemens SIRIUS 3RH1140-1AC00-0TK0 Auxiliary Contactor, 4 NO,

MPN3RH1140-1AC00-0TK0

Siemens SIRIUS auxiliary contactor, 3RH1140-1AC00-0TK0, 4 NO instantaneous contacts, size S00, 45 mm width, screw and snap-on mounting, IP20 front.

$96.49Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

3RH1140-1AC00-0TK0 — Identification
ParameterValue
Contactor frame sizeS00
3RH1140-1AC00-0TK0 — Ratings & Performance
ParameterValue
Rated operational current, AC-12, max.10 A
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
3RH1140-1AC00-0TK0 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz32 V
3RH1140-1AC00-0TK0 — Contacts & Poles
ParameterValue
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RH1140-1AC00-0TK0 — Connection & Mounting
ParameterValue
Conductor cross-section, solid2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), 2x 4 mm²
Conductor cross-section, finely stranded w/ ferrule2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
Mounting methodscrew and snap-on mounting
3RH1140-1AC00-0TK0 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RH1140-1AC00-0TK0 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RH1140-1AC00-0TK0 — Mechanical
ParameterValue
Width45 mm
Height57.5 mm
Depth72 mm

Product details

The front carries IP20 protection, so it's suited for enclosed control panels where accidental finger contact is the concern.

Switching capacity and contact reliability

Rated operational current varies by voltage and frequency: 10 A at 24 V, 6 A at 230 V, 3 A at 400 V, and 1 A at 690 V. At 50 Hz the coil hold-in range is 0.8–1.1 times rated voltage; at 60 Hz it's 0.85–1.1.

Shock resistance is 10g / 5 ms and 5g / 10 ms.

Frequently asked questions

Where can I buy 3RH1140-1AC00-0TK0?

This part is sourced and quoted to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time.

What is the contact configuration of 3RH1140-1AC00-0TK0?

It has four normally open instantaneous contacts, with no delayed or lagging switching, and no make-before-break function.

What is the depth of 3RH1140-1AC00-0TK0?

The depth is 72 mm, width 45 mm, height 57.5 mm — size S00 footprint.

What compliance documentation is available for this part?

The evidence includes a substance prohibition date of 07/01/2006, indicating RoHS compliance. The product brand is Siemens SIRIUS; standard IEC/EN certifications apply for auxiliary contactors of this class.

MPN
3RH1140-1AC00-0TK0