The Siemens 3RT2037-3AV00 is a SIRIUS power contactor in size S2, rated for switching motor loads up to 65 A at 480 V in AC-3 duty — that's the current it can make and break under full-load motor starting conditions, not just resistive heating. Spring-type terminals on the magnet coil and main contacts accept 2x (0.5... 2.5 mm²) solid or stranded wire, so no screw torque checks on the line. Mounting is screw and snap-on onto 35 mm standard mounting rail per DIN EN 60715, with a +/-180° rotation possible on a vertical surface and tilt of +/-22.5° forward/backward — useful when the panel layout forces an odd orientation.
Siemens 3RT2037-3AV00 SIRIUS Power Contactor, 65 A at 480 V
MPN3RT2037-3AV00
Active
Siemens SIRIUS power contactor, size S2, 3RT2037-3AV00, 65 A at 480 V AC-3, spring-type terminals, screw and snap-on DIN rail mount.
Source DocumentedChannel stated on listing & quote
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Independent China distributor & sourcing agent· Listing updated Sep 2026
Specifications
| Parameter | Value |
|---|---|
| Contactor frame size | S2 |
| Parameter | Value |
|---|---|
| Rated operational current, AC-12, max. | 10 A |
| Rated operational current, AC-4 @ 400 V | 55 A |
| Rated value @ 400 V | 3 A |
| Rated value @ 500 V | 2 A |
| Rated value @ 690 V | 1 A |
| Rated value @ 230 V | 10 hp |
| Rated value @ 24 V | 10 A |
| Rated value @ 60 V | 2 A |
| Rated value @ 110 V | 1 A |
| Rated value @ 220 V | 0.3 A |
| Parameter | Value |
|---|---|
| Control supply voltage type | AC |
| Rated value @ 50 Hz | 0.37 |
| Rated value @ 50 Hz | 400 V |
| Parameter | Value |
|---|---|
| Main poles | 3 |
| Main NO contacts | 3 |
| Auxiliary contact reliability | 1 faulty switching per 100 million (17 V, 1 mA) |
| Parameter | Value |
|---|---|
| Short-circuit coordination type 1, fuse | gG: 250 A (690 V, 100 kA), aM: 160 A (690 V, 100 kA), BS88: 200 A (415 V, 80 kA) |
| Short-circuit coordination type 2, fuse | gG: 125A (690V,100kA), aM: 63A (690V,100kA), BS88: 100A (415V,80kA) |
| Aux. switch short-circuit protection, fuse | gG: 10 A (500 V, 1 kA) |
| Parameter | Value |
|---|---|
| Main circuit connection | screw-type terminals |
| Aux. / control circuit connection | spring-loaded terminals |
| Conductor cross-section, solid or stranded | 2x (0.5 ... 2.5 mm²) |
| Conductor cross-section, finely stranded w/ ferrule | 2x (0.5 ... 1.5 mm²) |
| Mounting method | screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 60715 |
| Side-by-side mounting | Yes |
| Parameter | Value |
|---|---|
| Durability (operating cycles, typ.) | 10 000 000 |
| 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 | 55 mm |
| Height | 114 mm |
| Depth | 130 mm |
| Parameter | Value |
|---|---|
| At AC | 10 ... 18 ms |
Product details
Frequently asked questions
Where can I buy 3RT2037-3AV00 and how do I get a price?
This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time.
What is 3RT2037-3AV00's listed depth?
The depth is 130 mm, which is standard for the S2 contactor frame size and fits most motor control center buckets and enclosures.
What is 3RT2037-3AV00's listed width?
The width is 55 mm — a single S2 pole width on DIN rail, leaving room for auxiliary contact blocks alongside.
MPN
3RT2037-3AV00