The 3RA2110-0KA15-1FB4: Fastens with screws or snaps onto 35 mm DIN rail; mounting position is vertical, with 50 mm clearance upwards, 20 mm forwards, 10 mm downwards, and 20 mm at the side for heat dissipation and wiring access. Dimensions are 97 mm deep, 45 mm wide, and 167 mm high — the 45 mm width fits a standard 45 mm-wide DIN-rail footprint, leaving room for adjacent devices in a crowded panel. The supplied contactor is a 3RT2015-1FB41 and the link module is a 3RA1921-1DA00 — these are the specific matched components inside the starter assembly, so replacement or spare ordering is straightforward.
Siemens 3RA2110-0KA15-1FB4 SIRIUS Motor Starter
MPN3RA2110-0KA15-1FB4
Active
Siemens SIRIUS 3RA2110-0KA15-1FB4 direct-on-line motor starter, Size S00, 370 kW at 400 V, AC-3 1.25 A, Class 10, screw/snap-on 35 mm DIN rail mounting.
StockContact for availability
Lead time3-5 Days wk
MOQ1 pcs
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
How we verify every order →Specifications
Identification
| Parameter | Value |
|---|---|
| Product designation | Direct (on-line) starter |
| Main circuit poles | 3 |
| Brand | SIRIUS |
| Load feeder size | S00 |
| Product design / construction | for standard rail or screw mounting |
| Circuit-breaker size | S00 |
| Included contactor (type) | 3RT2015-1FB41 |
| Included circuit-breaker (type) | 3RV2011-0KA10 |
| Included link module (type) | 3RA1921-1DA00 |
Ratings & Performance
| Parameter | Value |
|---|---|
| Rated motor power at 400 V | 370 kW |
| Rated voltage at AC-3, max. | 690 V |
| Rated motor power at 460/480 V (hp) | 0.75 hp |
| Rated motor power at 575/600 V (hp) | 0.75 hp |
| Rated current at 480 V | 1.25 A |
| Rated current at 600 V | 1.25 A |
| Rated operating frequency | 50 ... 60 Hz |
| Rated impulse withstand voltage (Uimp) | 6 kV |
| Rated insulation voltage Ui (AC, pollution degree 3) | 690 V |
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) | 0.9 ... 1.25 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 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 DIN rail |
| Mounting position | vertical |
| Width | 45 mm |
| Height | 167 mm |
| Depth | 97 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 |
Product details
Frequently asked questions
What is the closest pin-compatible alternative to 3RA2110-0KA15-1FB4 in this Motor Starters family?
The SIRIUS family includes other Size S00 starters with different current or voltage ratings, but a direct drop-in replacement would need to match the 1.25 A AC-3 rating at 400 V and the supplied contactor and link module.
What compliance documentation does Siemens provide for 3RA2110-0KA15-1FB4?
The evidence does not list specific compliance certifications (UL, CSA, CE, RoHS, REACH) for this order code. Standard Siemens SIRIUS starters typically carry CE and UL marks, but confirm the specific approvals for your jurisdiction at quote time.
MPN
3RA2110-0KA15-1FB4