3RT2536-1AC20
MPN3RT2536-1AC20
Active
power contactor, AC-3, 51 A, 22 kW / 400 V, 4-pole, 24 V AC, 50/60 Hz, main contacts: 2 NO + 2 NC, auxiliary contacts: 1 NO + 1 NC, screw terminal, size: S2
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 value @ 400 V | 3 A |
| Rated value @ 500 V | 2 A |
| Rated value @ 690 V | 1 A |
| 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 | 0.36 |
| Rated value @ 50 Hz | 24 V |
| Parameter | Value |
|---|---|
| Main poles | 4 |
| Main NO contacts | 2 |
| Auxiliary contact reliability | 1 faulty switching per 100 million (17 V, 1 mA) |
| Parameter | Value |
|---|---|
| Short-circuit coordination type 1, fuse | gG: 160 A (690 V, 100 kA) |
| Short-circuit coordination type 2, fuse | gG: 80 A (690 V, 100 kA) |
| Aux. switch short-circuit protection, fuse | fuse 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) |
| 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 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 | -40 ... +70 °C |
| Storage temperature range | -55 ... +80 °C |
| Installation altitude, max. | 2 000 m |
| Parameter | Value |
|---|---|
| Width | 75 mm |
| Height | 114 mm |
| Depth | 130 mm |
| Parameter | Value |
|---|---|
| At AC | 10 ... 18 ms |
Frequently asked questions
What is the coil voltage of Siemens 3RT2536-1AC20?
Buyers must match coil voltage to existing control circuit before ordering to avoid incompatibility.
How many main and auxiliary contacts does the 3RT2536-1AC20 have?
Contact count determines whether the contactor fits the wiring scheme of the panel being built or repaired.
Is the Siemens 3RT2536-1AC20 suitable for AC-3 motor switching?
Confirms the device handles direct-on-line motor starting at its rated 22 kW / 400 V load.
What is the difference between 3RT2536-1AC20 and 3RT2536-1BB40?
Engineers cross-reference coil codes (AC vs DC) to spec the correct variant for a retrofit.
What is the replacement or equivalent for 3RT2536-1AC20?
Identifies direct substitutes or next-generation Sirius equivalents when stock is constrained.
Where can I buy 3RT2536-1AC20 with current price and availability?
Sourcing decision hinges on trusted distributor pricing, lead time, and authenticity.
MPN
3RT2536-1AC20