Siemens 3RE4121-5AA31-1HY0
MPN3RE4121-5AA31-1HY0
Non-reversing motor starter, Frame size 00, Three phase full voltage, UL horsepower rating Hp@VAC, 1.5@208, 2@230, 3@460, 5@575, Bimetal overload relay, Fixed Trip Class 10, OLR amp range 5.5 - 8, 110/120 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
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Product designation | Non-reversing motor starter |
| Main circuit poles | 3 |
| Brand | Siemens |
| Parameter | Value |
|---|---|
| Rated motor power at 460/480 V (hp) | 3 hp |
| Rated motor power at 575/600 V (hp) | 5 hp |
| Parameter | Value |
|---|---|
| Short-circuit trip type | Thermal magnetic circuit breaker |
| Parameter | Value |
|---|---|
| Control supply voltage type | AC |
| Auxiliary contacts, NO | 1 |
| Auxiliary contacts, NC | 0 |
| Parameter | Value |
|---|---|
| Mounting / fastening method | Surface mounting and installation |
| Mounting position | vertical |
MPN
3RE4121-5AA31-1HY0