3RT5045-1AF00 - Siemens
MPN3RT5045-1AF00
Contactor AC 110 V 50 HZ AC3 37 kW 400 V 3-pole, size S3 screw terminal
Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
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Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026
Specifications
| Parameter | Value |
|---|---|
| Contactor frame size | S3 |
| Parameter | Value |
|---|---|
| Rated operational current, AC-12, max. | 10 A |
| Rated value @ 400 V | 3 A |
| Rated value @ 690 V | 21.1 kW |
| Rated value @ 230 V | 6 A |
| Rated value @ 24 V | 6 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 | 0.27 |
| Rated value @ 50 Hz | 110 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 | screw-type terminals |
| Conductor cross-section, solid or stranded | 2x (2.5 ... 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 and 75 mm DIN 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 | 5 000 1/h |
Frequently asked questions
What is the coil voltage of the Siemens 3RT5045-1AF00?
Determines control circuit compatibility and prevents wiring/equipment damage.
What size frame is the 3RT5045-1AF00 contactor?
Defines panel footprint, mounting dimensions, and compatibility with S3 accessories.
How many poles does the Siemens 3RT5045-1AF00 have?
Confirms suitability for 3-phase motor switching applications.
Does the 3RT5045-1AF00 come with screw terminals?
Affects wiring method, tool requirements, and retrofit decisions in existing panels.
What is the difference between 3RT5045-1AF00 and 3RT5045-1AP00?
Helps buyers choose correct coil variant and avoid ordering mistakes.
Where can I buy 3RT5045-1AF00 with current stock and price?
Direct path to purchase decision from authorized distributors with availability data.
MPN
3RT5045-1AF00