The Siemens SIRIUS 3RT2037-1AL20-ZW96 is a Size S2 power contactor rated for 65 A at 480 V in AC-3 duty — the motor-switching rating that governs real-world sizing for induction motors up to that frame current. It carries screw-type terminals for the magnet coil and includes an auxiliary switch block, saving a separate order for basic feedback or interlock wiring.
Siemens 3RT2037-1AL20-ZW96 SIRIUS Power Contactor, 480V 65A
MPN3RT2037-1AL20-ZW96
Active
Siemens SIRIUS, Size S2 power contactor, 3RT2037-1AL20-ZW96, 55 mm width, 480 V rated 65 A in AC-3 duty, screw-type coil terminals, auxiliary switch included.
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
| 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 | 0.36 |
| Rated value @ 50 Hz | 230 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 | screw-type terminals |
| Conductor cross-section, solid or stranded | 2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 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 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
What is 3RT2037-1AL20-ZW96's listed depth on this component line?
The listed depth is 130 mm.
What is 3RT2037-1AL20-ZW96's listed width on this component line?
The listed width is 55 mm.
Will 3RT2037-1AL20-ZW96 drop into a panel that was specified around 3RT2015-1AV02 without rewiring?
The 3RT2037-1AL20-ZW96 is a Size S2 contactor; the 3RT2015-1AV02 is a smaller frame. Panel cutouts and DIN-rail spacing sized for the smaller unit may not accommodate the 55 mm width and 130 mm depth of the S2 — verify physical fit before assuming a drop-in swap.
What compliance documentation does this brand provide for 3RT2037-1AL20-ZW96?
As a Siemens SIRIUS product, standard documentation includes the declaration of conformity and the product manual, which cover applicable EU directives. Specific certificates (UL, CSA, CCC) are listed in the manufacturer's technical data sheet for this order code.
MPN
3RT2037-1AL20-ZW96