Siemens 3RA2125-4CE27-0FB4 Motor Starter
MPN3RA2125-4CE27-0FB4
Active
Load feeder fuseless, Direct-on-line starting 400 V AC, Size S0 16...22 A 24 V DC Spring-type terminal for installation on standard mounting rail (also fulfills type of coordination 1) Type of coordination 2, Iq = 150 kA 1 NO+1 NC (contactor) with diode combination plugged in at the front
StockContact for availability
MOQ1 pcs
Sourced new & surplus through independent channelsListing updated Jun 2026
Specifications
Identification
| Parameter | Value |
|---|---|
| Product designation | Direct (on-line) starter |
| Main circuit poles | 3 |
| Brand | SIRIUS |
| Load feeder size | S0 |
| Product design / construction | for standard rail or screw mounting |
| Circuit-breaker size | S0 |
| Included contactor (type) | 3RT2027-2FB40 |
| Included circuit-breaker (type) | 3RV2021-4CA25 |
| Included link module (type) | 3RA2921-2AA00 |
Ratings & Performance
| Parameter | Value |
|---|---|
| Rated motor power at 400 V | 11 000 W |
| Operational current Ie, AC-3 at 400 V | 22 A |
| Rated voltage at AC-3, max. | 690 V |
| Rated operating frequency | 50 ... 60 Hz |
| Rated impulse withstand voltage (Uimp) | 6 kV |
| Rated insulation voltage Ui (AC, pollution degree 3) | 690 V |
| Mechanical service life, typ. (switching cycles) | 10 000 000 |
Protection & Tripping
| Parameter | Value |
|---|---|
| Trip class | CLASS 10 |
| Short-circuit protection | Yes |
| Rated short-circuit current at 400 V (IEC 60947-4-1) | 150 000 A |
| Overload release setting range (current) | 16 ... 22 A |
| Overload release type | thermal (bimetallic) |
| Short-circuit trip type | magnetic |
| Duty / utilization type (IEC 60947-6-2) | 2 |
Contacts & Control
| Parameter | Value |
|---|---|
| Rated value | 24 ... 24 V |
| Control supply voltage type | DC |
| Auxiliary contacts, NO | 1 |
| Auxiliary contacts, NC | 1 |
| Auxiliary switch extension | Yes |
| Switching contact type | electromechanical |
Communication
| Parameter | Value |
|---|---|
| AS-Interface protocol support | No |
Mechanical & Connection
| Parameter | Value |
|---|---|
| Mounting / fastening method | screw and snap-on mounting onto 35 mm standard mounting rail |
| Mounting position | vertical |
| Width | 45 mm |
| Height | 243 mm |
| Depth | 107 mm |
Environmental
| Parameter | Value |
|---|---|
| Operating temperature range | -20 ... +60 °C |
| Storage temperature range | -50 ... +80 °C |
| Transport temperature range | -50 ... +80 °C |
| Shock resistance (IEC 60068-2-27) | 6g / 11 ms |
MPN
3RA2125-4CE27-0FB4