Siemens 3RE4123-5AA15-4WB0
MPN3RE4123-5AA15-4WB0
Non-reversing motor starter, Frame size 2, Three phase full voltage, UL horsepower rating Hp@VAC, 10@208, 15@230, 30@460, 40@575, Solid-state overload relay, Selectable Trip Cl 5-10-20-30, OLR amp range 20 - 80, 24 V AC 50/60HZ coil, Non-combination type, Enclosure NEMA type 1, Indoor general purpose use, Standard width enclosure, Standards: UL 60947-4-1, Certifications: cULus With modifications: 22 mm Start-Stop push buttons
StockContact for availability
MOQ1 pcs
Sourced new & surplus through independent channelsListing updated Jun 2026
Specifications
Identification
| Parameter | Value |
|---|---|
| Product designation | Non-reversing motor starter |
Electrical
| Parameter | Value |
|---|---|
| Rated voltage, AC 60 Hz | 24 V |
| Rated voltage, AC 50 Hz | 24 V |
| Rated value at 200/208 V (hp) | 10 hp |
| Rated value at 220/230 V (hp) | 15 hp |
| Rated value at 460/480 V (hp) | 30 hp |
| Rated value at 575/600 V (hp) | 40 hp |
| Design Of The Short-Circuit Trip | Thermal magnetic circuit breaker |
Contacts & Poles
| Parameter | Value |
|---|---|
| Main circuit poles | 3 |
| Main NO contacts (count) | 3 |
| Auxiliary NO contacts (count) | 1 |
| Auxiliary NC contacts (count) | 1 |
| Auxiliary contacts, max. total | 8 |
| Overload relay auxiliary NC contacts (count) | 1 |
Coil
| Parameter | Value |
|---|---|
| Control supply voltage type | AC |
| Coil operating range factor (× rated) | 0.8 ... 1.1 |
| Coil pick-up power, AC (apparent) | 188 VA |
| Coil holding power, AC (apparent) | 16.5 VA |
Timing
| Parameter | Value |
|---|---|
| ON-delay time | 10 ... 80 ms |
| OFF-delay time | 10 ... 18 ms |
Approvals & Protection
| Parameter | Value |
|---|---|
| Overload protection | Yes |
| Reset function | Manual, automatic and remote |
| External reset | Yes |
| Test function | Yes |
| Auxiliary contact rating, contactor (UL) | 10A@600V(A600), 5A@600V(P600) |
| Auxiliary contact rating, overload relay (UL) | 5A@600VAC (B600), 1A@250VDC (R300) |
| Required short-circuit protection fuse | Class J |
| Touch protection against electrical shock | NA for enclosed products |
Environmental
| Parameter | Value |
|---|---|
| Enclosure NEMA rating | NEMA 1 standard size enclosure |
| Housing design / suitability | indoors, usable on a general basis |
| Max. installation altitude | 6 560 ft |
| Max. permissible conductor temp, supply | 60 °C |
| Max. permissible conductor temp, load-side feeder | 60 °C |
| Max. permissible conductor temp, coil | 75 °C |
| Max. permissible conductor temp, auxiliary contacts (contactor) | 75 °C |
Connection & Mechanical
| Parameter | Value |
|---|---|
| Dimensions (H × W × D) | 14 × 8 × 7 in |
| Mounting position | Vertical |
| Fastening / mounting method | Surface mounting and installation |
| Line-side terminal connection type | Box lug |
| Load-side terminal connection type | Box lug |
| Coil terminal connection type | Screw-type terminals |
| Connectable conductor, line-side (AWG) | 2x (18 ... 2), 1x (18 ... 1) |
| Connectable conductor, load-side feeder (AWG) | 2x (18 ... 2), 1x (18 ... 1) |
| Connectable conductor, coil (AWG) | 2x (20 ... 16), 2x (18 ... 14) |
| Supply terminal tightening torque | 26 ... 39 lbf·in |
| Conductor material, supply | CU |
| Conductor material, load-side feeder | CU |
| Conductor material, coil | CU |
| Conductor material, auxiliary contacts (contactor) | CU |
| Conductor material, auxiliary contacts (overload relay) | CU |
Specifications
| Parameter | Value |
|---|---|
| Trip Class | CLASS 5 / 10 / 20 / 30 |
MPN
3RE4123-5AA15-4WB0