
3RT2526-1BG40
power contactor, AC-3, 25 A, 11 kW / 400 V, 4-pole, 125 V DC, main contacts: 2 NO + 2 NC, auxiliary contacts: 1 NO + 1 NC, screw terminal, size: S0
Specifications
| Parameter | Value |
|---|---|
| Contactor frame size | S0 |
| 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 | 10 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 | 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: 63 A (690 V, 100 kA) |
| Short-circuit coordination type 2, fuse | gG: 35 A (690 V, 50 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 | -25 ... +60 °C |
| Storage temperature range | -55 ... +80 °C |
| Installation altitude, max. | 2 000 m |
| Parameter | Value |
|---|---|
| Width | 61 mm |
| Height | 85 mm |
| Depth | 107 mm |
| Parameter | Value |
|---|---|
| At AC | 5 000 1/h |
Frequently asked questions
What is the coil voltage and tolerance of Siemens 3RT2526-1BG40?
Determines PLC output module and 125 V DC control circuit compatibility before purchase.
What is the AC-3 rating and main contact configuration of 3RT2526-1BG40 at 400 V?
Confirms 25 A / 11 kW / 2 NO + 2 NC suitability for motor and switching loads.
Is 3RT2526-1BG40 still active, and what is the direct replacement if discontinued?
Drives last-time-buy decisions and avoids allocation surprises.
What is the difference between 3RT2526-1BG40 and 3RT2526-1BG00?
Highlights auxiliary contact variations that affect wiring logic and spares substitution.
What is a pin-compatible or form-fit-function replacement for 3RT2526-1BG40 in an S0 panel?
Enables field retrofit when OEM parts are unavailable or allocated.
Where can 3RT2526-1BG40 be bought from authorized Siemens distributors with current stock and lead time?
Mitigates counterfeit risk and secures pricing for the 125 V DC coil variant.