The Siemens SIRIUS 3RT1036-1BB48-3MA1 is a size S2 power contactor rated for switching motor loads up to 30 kW at 500 V in AC-3 duty, and 11.4 kW at 690 V in AC-3. The 24 V DC coil pulls in reliably across the operating range, with a pickup voltage of 0.8 x nominal and a dropout threshold that keeps it latched through brief sags. That's enough for the full rated current without needing a lug adapter on most panel builds.
Siemens 3RT1036-1BB48-3MA1 SIRIUS Power Contactor, 24 VDC, 3
MPN3RT1036-1BB48-3MA1
Siemens SIRIUS power contactor, size S2, 24 VDC coil, 55 mm width, screw-type terminals, 30 kW AC-3 at 500 V, 11.4 kW AC-3 at 690 V, IP20 front / IP00 terminals.
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 | 41 A |
| Rated value @ 400 V | 3 A |
| Rated value @ 500 V | 30 kW |
| Rated value @ 690 V | 11.4 kW |
| Rated value @ 230 V | 6 A |
| 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 | DC |
| 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 | fuse gL/gG: 160 A |
| Short-circuit coordination type 2, fuse | fuse gL/gG: 80 A |
| Aux. switch short-circuit protection, fuse | fuse gL/gG: 10 A |
| Parameter | Value |
|---|---|
| Main circuit connection | screw-type terminals |
| Aux. / control circuit connection | screw-type terminals |
| Conductor cross-section, solid | 2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), max. 2x (0.75 ... 4 mm²) |
| Conductor cross-section, solid or stranded | 2x (0.75 ... 16 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 standard mounting rail according to DIN EN 50022 |
| 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 | 112 mm |
| Depth | 179 mm |
Product details
Frequently asked questions
Where can I buy 3RT1036-1BB48-3MA1 and get a price?
Sourced to order through independent distribution. Submit an RFQ for current availability and pricing — confirmed at quote time.
What are the key ratings for this contactor?
AC-3 motor switching: 30 kW at 500 V, 11.4 kW at 690 V. AC-4 (inching/plugging): 41 A at 400 V. Coil: 24 V DC, 10 A at 24 V rated value. Mechanical life: 10 million operations typical.
What compliance documentation is available for 3RT1036-1BB48-3MA1?
RoHS compliant with a substance prohibition date of May 1, 2012. The part carries IP20 front protection and is rated for pollution degree 3 per IEC 60947.
MPN
3RT1036-1BB48-3MA1