The 3RQ4900-0A is a narrow-format coupling relay from the Siemens SIRIUS 3RQ4 family, designed to provide a potential barrier between control circuits and load circuits in a control panel. It carries Group Code R711 and Product Group 4950, which are internal Siemens identifiers for logistics and catalog routing — useful when cross-referencing against a BOM or a legacy spare-parts list.
RoHS compliant since 26-09-24, and REACH Article 33 information is available on request — both matter for OEMs shipping into EU-regulated markets or for quality-doc control tracking substance declarations. Export control is classified as AL: N / ECCN: N, meaning no special licensing is required for standard cross-border shipments — relevant for traders or multi-site procurement consolidating from a single source.
Physical fit and packaging
Packaged individually (quantity unit 1 piece), with dimensions 95 x 93 x 65 mm — narrow enough for dense DIN-rail layouts typical in SIRIUS control assemblies.