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Siemens 3RQ4018-2AF00 — Motor Control Accessories

Siemens 3RQ4018-2AF00 SIRIUS coupling relay, 230 V AC/DC, 6

MPN3RQ4018-2AF00

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Siemens SIRIUS 3RQ4 coupling relay, narrow design, 3RQ4018-2AF00, output coupler with integrated relay, 230 V AC/DC, 1 change-over contact, spring-loaded terminal (push-in), width 6.2 mm, thermal current 6 A.

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Siemens 3RQ4018-2AF00 datasheet (PDF)

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

Specifications

3RQ4018-2AF00 — Specifications
Parameter	Value
Group code	R711
Product group	4950
Product class	A: Standard product which is a stock item could be returned within the returns guidelines/period.
Series	SIRIUS 3RQ4 coupling relays, narrow design
Export control regulations	AL : N / ECCN : EAR99
Compliance with the substance restrictions according to RoHS directive	Since: 26-09-24

Product details

The Siemens 3RQ4018-2AF00 is an output coupler with an integrated relay from the SIRIUS 3RQ4 family, designed in a narrow 6.2 mm housing. It switches a single change-over contact at 230 V AC/DC coil voltage, rated for a thermal current of 6 A.

At 6.2 mm wide, this relay occupies minimal DIN-rail space — roughly one-third the width of a conventional 17.5 mm interface relay. The narrow profile matters when you are packing I/O slices into a crowded enclosure or retrofitting an extra isolation stage into a full rail. Push-in terminals keep wiring consistent with the rest of the SIRIUS 3RQ4 slice; no screwdriver needed for the field connections.

Frequently asked questions

What compliance documentation is available for this part?

RoHS compliance effective 26 September 2024. REACH Article 33 declares lead (CAS 7439-92-1) above 0.1% w/w in the candidate list. Export controls are AL: N / ECCN: EAR99.