The Siemens SIRIUS 3RT5944-5BM41 is a DC-operated magnet coil for size S3 contactors, rated 220 V DC with a screw-type connection. It is designed as a replacement or spare coil for SIRIUS 3RT power contactors in the S3 frame — the same frame used across the 3RT5044 and 3RT5046 families. The coil itself carries no auxiliary contacts; it simply energises the contactor armature when 220 V DC is applied, so the buyer is sourcing a service part, not a standalone switching device.
Siemens 3RT5944-5BM41 SIRIUS Magnet Coil, 220 V DC, Size S3
MPN3RT5944-5BM41
Siemens SIRIUS magnet coil, size S3, 220 V DC, screw connection, order code 3RT5944-5BM41.
Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for machine-down parts
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026
Specifications
| Parameter | Value |
|---|---|
| Control supply voltage type | DC |
| Parameter | Value |
|---|---|
| 1 at DC rated value | 220 V |
Product details
Frequently asked questions
What is 3RT5944-5BM41 used for?
It is a DC-operated magnet coil for Siemens SIRIUS size S3 contactors, rated 220 V DC with screw terminals — used to energise the contactor armature in motor control or power switching circuits.
Will 3RT5944-5BM41 drop into a panel specified around 3RT5046-1BM40?
Yes — both use the S3 contactor frame and the same 220 V DC coil voltage, so the 3RT5944-5BM41 is a direct coil replacement for the 3RT5046-1BM40 contactor. The coil terminals are screw-type, matching the contactor's control circuit.
MPN
3RT5944-5BM41