The 3RQ4901-0D is a 16-pole connecting comb from the SIRIUS 3RQ4 family of narrow coupling relays. It bridges identical potentials across the relay terminals, with a current-carrying capacity for infeed of max 10 A. This is a current-production part — lifecycle status is active.
What the 10 A infeed rating means for fit
The 10 A infeed rating governs the total current the comb can carry into the commoned potential rail. It does not limit per-channel current through the relay contacts — that is set by the relay's own rating. For a multi-channel coupling relay bank, the sum of loads on the commoned side must stay under 10 A, or a separate infeed point is needed. This is the number that decides whether the comb works for your load group.
Where this part fits in the panel
The comb snaps onto the SIRIUS 3RQ4 coupling relay block, linking the terminal rows without point-to-point wiring. It is a narrow-format accessory designed for DIN-rail enclosures where space per channel is tight. Group code R711 and product group 4950 are the internal Siemens classification — useful for cross-referencing against a BOM or a stores bin.
RoHS compliant since 26-09-24. REACH Article 33 information is available on request.