Siemens 3RA1120-1KA25-0BB4
MPN3RA1120-1KA25-0BB4
Load feeder fuseless direct-on-line starting, 400 V AC 9...12.5 A, 24 V DC Size S0 Screw terminal for installation on standard mounting rail Type of coordination 1, Iq = 50 kA!!! Phased-out product!!! Successor is SIRIUS 3RA2 Preferred successor type is >>3RA2110-1KA17-1BB4<<
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Specifications
| Parameter | Value |
|---|---|
| Product designation | non-fused load feeder |
| Main circuit poles | 3 |
| Brand | SIRIUS |
| Load feeder size | S0 |
| Product design / construction | direct starter |
| Included contactor (type) | 3RT1025-1BB40 |
| Included circuit-breaker (type) | 3RV1021-1KA10 |
| Included link module (type) | 3RA1921-1BA00 |
| Reference designation (IEC 81346-2) | Q |
| Parameter | Value |
|---|---|
| Rated motor power at 400 V | 5.5 kW |
| Operational current Ie, AC-3 at 400 V | 11.5 A |
| Rated impulse withstand voltage (Uimp) | 6 kV |
| Mechanical service life, typ. (switching cycles) | 10 000 000 |
| Parameter | Value |
|---|---|
| Short-circuit protection | Yes |
| Overload release setting range (current) | 9 ... 12.5 A |
| Duty / utilization type (IEC 60947-6-2) | 1 |
| Parameter | Value |
|---|---|
| Control supply voltage type | DC |
| Auxiliary contacts, NO | 0 |
| Auxiliary contacts, NC | 0 |
| Auxiliary switch extension | Yes |
| Switching contact type | electromechanical |
| Parameter | Value |
|---|---|
| AS-Interface protocol support | No |
| Parameter | Value |
|---|---|
| Main circuit connection type | screw-type terminals |
| Main contact conductor range (AWG) | 2x (14 ... 10) |
| Mounting / fastening method | snap-on fastening on 35 mm standard rail |
| Mounting position | with vertical mounting surface +/-90° rotatable, with vertical mounting surface +/- 22.5° tiltable to the front and back |
| Width | 45 mm |
| Height | 183 mm |
| Depth | 101 mm |
| Parameter | Value |
|---|---|
| Operating temperature range | -20 ... +70 °C |
| Storage temperature range | -55 ... +80 °C |
| Pollution degree | 3 |
MPN
3RA1120-1KA25-0BB4