Siemens 3RT5944-5AC21 SIRIUS magnet coil, 24 V AC at 50/60 Hz, operating range 0.8...1.1 × rated voltage. Out here in the grease, a coil that drops out early because the line sagged under a big motor start is a nuisance call you don't need. The 0.8...1.1 band on this one gives you a bit of headroom for brownout conditions on the lube route.
Siemens 3RT5944-5AC21 SIRIUS Magnet Coil, 24 V AC, 50/60 Hz
MPN3RT5944-5AC21
Siemens SIRIUS magnet coil, 3RT5944-5AC21, 24 V AC at 50/60 Hz, rated operating range 0.8... 1.1 × rated voltage.
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Control supply voltage type | AC |
| Rated value @ 50 Hz | 0.8 ... 1.1 |
| Rated value @ 50 Hz | 24 V |
| Parameter | Value |
|---|---|
| At 60 Hz rated value | 24 V |
Product details
MPN
3RT5944-5AC21