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Siemens 3RA1120-1JA24-0BW4 — Motor Starters

Siemens 3RA1120-1JA24-0BW4 Combination Starter, 7-10A 48VDC

MPN3RA1120-1JA24-0BW4

Siemens SIRIUS 3RA1120-1JA24-0BW4 combination starter, nonreversing, IEC, DIN/panel mount, frame size S0, 7 - 10 A, 48 VDC control voltage, MSP aux-none, contactor aux-none, UL E156943.

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Product details

What This Combination Starter Is

The Siemens 3RA1120-1JA24-0BW4 is a nonreversing combination starter in the SIRIUS S0 frame size, rated 7 - 10 A with a 48 VDC control voltage. It integrates a motor starter protector (MSP) and contactor in one DIN-rail or panel-mount package, saving panel space versus separate components. The 48 VDC coil means it drops into low-voltage DC control circuits common in process plants and safety-rated systems. No auxiliary contacts are fitted on either the MSP or contactor side — the spec shows "MSP AUX-NONE" and "CONTACTOR AUX-NONE".

Deployment Context

The SIRIUS S0 frame fits in crowded IEC enclosures.

If your panel design is locked to this code, the current lifecycle status means you can source it without an imminent last-time-buy concern.

Frequently asked questions

What is 3RA1120-1JA24-0BW4 used for?

It is a nonreversing IEC combination starter rated 7-10 A with 48 VDC control, used to protect and switch single-direction motor loads such as pumps, fans, and conveyors in industrial control panels.

Does 3RA1120-1JA24-0BW4 have UL listing?

Yes, it carries UL file E156943 in Volume 1, Section 14, confirming UL recognition for the US market.

Where can I buy 3RA1120-1JA24-0BW4?

This combination starter is sourced to order. Availability and pricing are confirmed at quote time.

MPN
3RA1120-1JA24-0BW4