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Siemens 3RA1215-0KA15-1BA4 — Motor Starters

Siemens 3RA1215-0KA15-1BA4 Reversing Combination Starter

MPN3RA1215-0KA15-1BA4

Siemens SIRIUS S00 reversing combination starter, 3RA1215-0KA15-1BA4, 0.9-1.25 A, 24 VDC control, with MSP auxiliary and SPDT NO/NC contactor auxiliary.

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

Product details

What this reversing combination starter packs

The Siemens 3RA1215-0KA15-1BA4 is a reversing combination starter in the SIRIUS S00 frame, rated 0.9-1.25 A with a 24 VDC control voltage. It integrates a reversing contactor pair, overload relay, and short-circuit protection into one DIN-rail or panel-mount unit — one part number instead of wiring three separate devices. The MSP auxiliary supplies a 1 SPDT NO/NC contactor auxiliary, and there is a second NO auxiliary contact built in.

Mounts on DIN rail or direct to a panel backplate. The S00 frame is the smallest SIRIUS footprint, so it fits tight control cabinets.

Frequently asked questions

Is the 3RA1215-0KA15-1BA4 a reversing starter or non-reversing?

It is a reversing combination starter. The description explicitly states 'REVERSING' — it contains two contactors interlocked for forward/reverse motor control, plus overload and short-circuit protection in one housing.

What are the specifications for 3RA1215-0KA15-1BA4 (current rating, control voltage)?

The current setting range is 0.9-1.25 A, and the control voltage is 24 VDC. It includes an MSP auxiliary with 1 SPDT NO/NC contact and a separate NO auxiliary contact.

What is the difference between 3RA1215-0KA15-1BA4 and 3RA1215-0KA15-1BA0?

The difference is in the auxiliary contact configuration. The -1BA4 carries an MSP auxiliary (1 SPDT NO/NC) plus a separate NO auxiliary contact, while the -1BA0 variant has a different auxiliary contact arrangement. Both are S00 frame reversing starters at the same current range and control voltage.

MPN
3RA1215-0KA15-1BA4