The 45 mm width and 85 mm height keep the footprint compact for multi-contactor assemblies.
The screw-type coil connection is standard for the 24 V DC version — no cage-clamp or ring-tongue adapters needed.
Siemens 3RT2025-1BB40-0CC0 SIRIUS Power Contactor, 24 VDC Co
MPN3RT2025-1BB40-0CC0
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Siemens SIRIUS power contactor, 3RT2025-1BB40-0CC0, Size S0, 24 V DC screw-type coil, screw and snap-on mounting on 35 mm DIN rail, 45 mm wide, 85 mm high, 107 mm deep.
Source DocumentedChannel stated on listing & quote
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Independent China distributor & sourcing agent· Listing updated Sep 2026
Specifications
| Parameter | Value |
|---|---|
| Contactor frame size | S0 |
| Parameter | Value |
|---|---|
| Rated operational current, AC-12, max. | 10 A |
| Rated operational current, AC-4 @ 400 V | 15.5 A |
| Rated value @ 400 V | 3 A |
| Rated value @ 500 V | 2 A |
| Rated value @ 690 V | 1 A |
| Rated value @ 230 V | 3 hp |
| 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 | 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 | gG: 63A (690V,100kA), aM: 32A (690V,100kA), BS88: 63A (415V,80kA) |
| Short-circuit coordination type 2, fuse | gG: 25A (690V,100kA), aM: 20A (690V,100kA), BS88: 25A (415V,80kA) |
| Aux. switch short-circuit protection, fuse | gG: 10 A (500 V, 1 kA) |
| Parameter | Value |
|---|---|
| Main circuit connection | screw-type terminals |
| Aux. / control circuit connection | screw-type terminals |
| Conductor cross-section, solid | 1 ... 10 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 60715 |
| 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 | 45 mm |
| Height | 85 mm |
| Depth | 107 mm |
Product details
Frequently asked questions
What is 3RT2025-1BB40-0CC0's listed depth?
The depth is 107 mm.
What solid wire range does 3RT2025-1BB40-0CC0 accept?
The main terminals accept solid wire from 1 to 10 mm².
Will 3RT2025-1BB40-0CC0 drop into a panel specified around 3RT2015-1BW42 without rewiring?
No. The 3RT2015-1BW42 is an S00-frame contactor with a different mounting footprint and lower current ratings. The S0 frame is physically larger and requires the panel layout to accommodate its 45 mm width and 107 mm depth.
MPN
3RT2025-1BB40-0CC0