Wiring and environmental limits
The 3RH2140-1AU00: Pollution degree 3 means it is rated for conductive pollution environments typical of industrial control panels.
Siemens 3RH2140-1AU00 SIRIUS Auxiliary Contactor, 4 NO, S00
MPN3RH2140-1AU00
Active
Siemens SIRIUS 3RH2140-1AU00 auxiliary contactor, size S00, 4 NO instantaneous contacts, screw and snap-on mounting onto 35 mm DIN rail, 45 mm width, 73 mm depth, 57.5 mm height.
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Independent China distributor & sourcing agent· Listing updated Sep 2026
Specifications
| Parameter | Value |
|---|---|
| Contactor frame size | S00 |
| 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 |
| Parameter | Value |
|---|---|
| Control supply voltage type | AC |
| Rated value @ 50 Hz | 0.8 ... 1.1 |
| Rated value @ 50 Hz | 240 V |
| Parameter | Value |
|---|---|
| Auxiliary contact reliability | 1 faulty switching per 100 million (17 V, 1 mA) |
| 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 |
| Parameter | Value |
|---|---|
| Durability (operating cycles, typ.) | 30 000 000 |
| Durability with aux. switch block (cycles, typ.) | 10 000 000 |
| Parameter | Value |
|---|---|
| Operating temperature range | -25 ... +60 °C |
| Storage temperature range | -55 ... +80 °C |
| Installation altitude, max. | 2 000 m |
| Parameter | Value |
|---|---|
| Width | 45 mm |
| Height | 57.5 mm |
| Depth | 73 mm |
| Parameter | Value |
|---|---|
| At AC | 4 ... 15 ms |
Product details
Frequently asked questions
What compliance documentation does Siemens provide for the 3RH2140-1AU00?
The part carries a RoHS compliance date of 10/01/2009, indicating it meets the EU RoHS substance restrictions effective from that date. Standard Siemens declarations for CE, UKCA, and REACH are available with the product documentation.
MPN
3RH2140-1AU00