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Siemens 3RH1140-1AL00 — Contactors

Siemens 3RH1140-1AL00 SIRIUS Auxiliary Contactor, 4 NO, S00

MPN3RH1140-1AL00

Siemens SIRIUS auxiliary contactor 3RH1140-1AL00, size S00, 4 NO instantaneous contacts, screw and snap-on mounting, 10 A at 24 V / 6 A at 230 V, IP20 front.

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

3RH1140-1AL00 — Identification
ParameterValue
Contactor frame sizeS00
3RH1140-1AL00 — 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
3RH1140-1AL00 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz125 V
3RH1140-1AL00 — Contacts & Poles
ParameterValue
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RH1140-1AL00 — 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
3RH1140-1AL00 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RH1140-1AL00 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RH1140-1AL00 — Mechanical
ParameterValue
Width45 mm
Height57.5 mm
Depth72 mm

Product details

SIRIUS auxiliary contactor, size S00 — 4 NO, panel-fit

Rated for 10 A at 24 V and 6 A at 230 V, with a surge voltage withstand of 6 kV and pollution degree 3 — suitable for control circuits in industrial panels where contact reliability is specified at one incorrect operation per 100 million switching cycles at 17 V, 1 mA. Mounts via screw or snap-on onto DIN rail; the 45 mm width and 72 mm depth fit standard enclosure layouts, and the mounting position allows ±180° rotation on a vertical surface plus ±22.5° tilt forward and backward.

RoHS compliance dated July 1, 2006 covers substance prohibitions; operating temperature range spans -25 to +60 °C, with storage and transport tolerance from -55 to +80 °C.

Wire termination and contact ratings

Solid and stranded conductors accepted: 2x 0.5–1.5 mm², 2x 0.75–2.5 mm², or 2x 4 mm² per terminal — covers typical control wiring from signal-level to moderate power circuits. Auxiliary contact ratings across common control voltages: 1 A at 110 V, 0.27 A at 220 V, 3 A at 400 V, 2 A at 500 V, 1 A at 690 V — derate accordingly for inductive loads. Mechanical endurance rated at 30 million switching operations typical; shock resistance of 10g / 5 ms and 5g / 10 ms covers most industrial vibration profiles.

Frequently asked questions

What is the contact configuration of 3RH1140-1AL00?

Four normally-open instantaneous contacts; no delayed, lagging, or make-before-break switching elements are present.

How does 3RH1140-1AL00 mount in a panel?

Screw or snap-on mounting to DIN rail; the 45 mm width and 72 mm depth fit standard S00 contactor footprints, with ±180° rotation and ±22.5° tilt possible on a vertical surface.

What wire sizes does the 3RH1140-1AL00 accept?

Each terminal accepts 2x 0.5–1.5 mm², 2x 0.75–2.5 mm², or 2x 4 mm² solid or stranded conductors.

MPN
3RH1140-1AL00