The 10 A rating at 24 V is the auxiliary contact current for DC control circuits — this is the contactor's coil or auxiliary switch capacity, not the main pole current. For AC main circuits, the contactor carries 42 V at 50 Hz as its rated insulation voltage, meaning it's sized for low-voltage control rather than direct motor switching at 400 V. The size S2 frame (114 mm height, 75 mm width, 130 mm depth) is a mid-range footprint — larger than S0 but smaller than S3, fitting standard 600 mm wide enclosures with room for side-by-side mounting (allowed per spec). Auxiliary contacts are screw-type terminals accepting 2x 0.5–1.5 mm² or 2x 0.75–2.5 mm² solid/stranded wire — standard for panel wiring with ferrule or direct termination.
Siemens 3RT2535-1AD00 SIRIUS Contactor, Size S2, 10 A at 24
MPN3RT2535-1AD00
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Siemens SIRIUS 3RT2535-1AD00, size S2 contactor, 10 A at 24 V, screw and snap-on mounting on 35 mm DIN rail.
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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 | 0.37 |
| Rated value @ 50 Hz | 42 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: 125 A (690 V, 100 kA) |
| Short-circuit coordination type 2, fuse | gG: 63A (690V, 100kA) |
| 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 |
Product details
Frequently asked questions
What are the key dimensions for panel layout?
Height 114 mm, width 75 mm, depth 130 mm. Side-by-side mounting is permitted with a 10 mm gap at the side. Forward and backward clearance is 0 mm, upward and downward clearance is 50 mm.
What wire sizes does the screw terminal accept?
The main current circuit and auxiliary terminals accept 2x 0.5–1.5 mm² or 2x 0.75–2.5 mm² solid or stranded wire.
Does 3RT2535-1AD00 drop into a panel specified for 3RT2027-1AF00?
Both are SIRIUS contactors on the 35 mm DIN rail standard, but the 3RT2535 is size S2 while the 3RT2027 series is typically smaller (size S0). Check the mounting footprint — the S2 is 75 mm wide versus S0's narrower width — so it may not fit without rail relocation or enclosure depth adjustment.
MPN
3RT2535-1AD00