The 3RT1046-3AP00: Mounts via screw or snap-on onto 35 mm or 75 mm standard DIN rail — the 70 mm width and 146 mm height fit a standard S3 footprint. The front face carries IP20 protection (IP20 with cover/box terminal), meaning the busbars and terminals are touch-safe once the panel door is closed.
Siemens 3RT1046-3AP00 SIRIUS S3 Contactor, 45 kW AC-2 at 400
MPN3RT1046-3AP00
Siemens SIRIUS S3 power contactor, 3RT1046-3AP00, 45 kW AC-2 at 400 V, 80 A AC-4, screw terminals, IP20 front, 70 x 146 x 139 mm.
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Specifications
| Parameter | Value |
|---|---|
| Contactor frame size | S3 |
| Parameter | Value |
|---|---|
| Rated operational current, AC-12, max. | 10 A |
| Rated operational current, AC-4 @ 400 V | 80 A |
| Rated value @ 400 V | 3 A |
| Rated value @ 500 V | 55 kW |
| Rated value @ 690 V | 25.4 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 | AC |
| Rated value @ 50 Hz | 0.8 ... 1.1 |
| 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 | fuse gL/gG: 250 A |
| Short-circuit coordination type 2, fuse | fuse gL/gG: 160 A |
| Aux. switch short-circuit protection, fuse | fuse gL/gG: 10 A |
| Parameter | Value |
|---|---|
| Main circuit connection | screw-type terminals |
| Aux. / control circuit connection | spring-loaded terminals |
| Conductor cross-section, solid | 2x (0.25 ... 2.5 mm²) |
| Conductor cross-section, solid or stranded | 2x (2.5 ... 16 mm²) |
| Conductor cross-section, finely stranded w/ ferrule | 2x (0.25 ... 1.5 mm²) |
| Mounting method | screw and snap-on mounting onto 35 mm and 75 mm standard mounting rail |
| 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 | 70 mm |
| Height | 146 mm |
| Depth | 139 mm |
| Parameter | Value |
|---|---|
| At AC | 10 ... 25 ms |
Product details
Frequently asked questions
What compliance documentation does this part carry?
RoHS compliance is confirmed with a substance prohibitance date of May 1, 2012. The evidence does not list UL, CSA, or CE marks explicitly, but the SIRIUS series typically carries these for the European and North American markets — verify with the full datasheet for your jurisdiction.
What are the key electrical ratings for fit?
45 kW at 400 V AC-2 (slip-ring motor duty), 80 A at 400 V AC-4 (reversing/inching), 55 kW at 500 V, and 25.4 kW at 690 V. The AC-2 figure is the one that decides fit for most motor applications.
How does this compare to the 3RT1044-1FB46?
The 3RT1044-1FB46 is a smaller S2-frame contactor with lower current ratings. The 3RT1046-3AP00 (S3 frame) carries higher AC-2 power (45 kW vs lower) and larger terminal capacity (2x 10–50 mm² stranded). They are not drop-in replacements — the S3 frame is physically larger and requires more DIN-rail space. If your panel was designed around the S2 frame, you would need to verify mounting footprint and busbar spacing before substituting.
MPN
3RT1046-3AP00