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Siemens 3RH2140-1AB00-ZW97 — Contactors

Siemens 3RH2140-1AB00-ZW97 SIRIUS Auxiliary Contactor, 4 NO,

MPN3RH2140-1AB00-ZW97
Active

Siemens SIRIUS auxiliary contactor, size S00, 4 NO instantaneous contacts, 24 V 50/60 Hz coil, screw and snap-on mounting onto 35 mm DIN rail, 45 x 57.5 x 73 mm.

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

Specifications

3RH2140-1AB00-ZW97 — Identification
ParameterValue
Contactor frame sizeS00
3RH2140-1AB00-ZW97 — 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 V10 A
Rated value @ 24 V10 A
Rated value @ 60 V4.7 A
Rated value @ 110 V3 A
Rated value @ 220 V1.2 A
3RH2140-1AB00-ZW97 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz24 V
3RH2140-1AB00-ZW97 — Contacts & Poles
ParameterValue
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RH2140-1AB00-ZW97 — Connection & Mounting
ParameterValue
Conductor cross-section, solid or stranded2x (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 onto 35 mm DIN rail
3RH2140-1AB00-ZW97 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RH2140-1AB00-ZW97 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RH2140-1AB00-ZW97 — Mechanical
ParameterValue
Width45 mm
Height57.5 mm
Depth73 mm
3RH2140-1AB00-ZW97 — Specifications
ParameterValue
At AC4 ... 15 ms

Product details

The coil is rated for 24 V at both 50 Hz and 60 Hz, with an operating range of 0.8 to 1.1 times rated voltage at 50 Hz and 0.85 to 1.1 at 60 Hz — so it holds in through typical line dips but drops out cleanly below the undervoltage threshold.

The contacts carry 10 A at 24 V AC and 10 A at 230 V AC, tapering to 3 A at 400 V AC and 0.26 A at 600 V AC — these are the thermal continuous currents for general-purpose AC loads, so the same contact set handles a 24 V PLC output interposing relay or a 230 V pilot light without derating. At DC voltages the rating drops faster: 4.7 A at 60 V DC, 1.2 A at 220 V DC, 0.5 A at 440 V DC — a common gotcha for panel builders who assume AC ratings carry over to DC circuits. For a 24 V DC solenoid valve bank, the 10 A AC rating does not apply; use the DC column.

Operating temperature range is -25 to +60 °C, storage from -55 to +80 °C, with 10 % relative humidity minimum. The S00 frame dimensions — 45 mm wide, 57.5 mm tall, 73 mm deep — fit alongside a Siemens contactor in the same footprint, sharing the same DIN-rail slot pitch.

It carries the substance-prohibitance date of 10/01/2009, indicating RoHS compliance for the European market.

Frequently asked questions

What is the contact configuration on 3RH2140-1AB00-ZW97?

It has four normally open instantaneous contacts — no NC contacts on this variant, so if you need a break contact for a safety interlock or a status feedback, you would add a side-mounted auxiliary block or choose a different contact arrangement.

Will 3RH2140-1AB00-ZW97 drop into a panel specified around 3RH2131-2AK60?

Both are S00-frame SIRIUS auxiliary contactors with the same 45 mm width and DIN-rail mounting, so the mechanical fit is identical. The difference is contact arrangement: the 3RH2131-2AK60 carries a different contact set — verify your circuit's NO/NC count before swapping.

MPN
3RH2140-1AB00-ZW97