{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RQ4018-1AE00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RQ4018-1AE00","canonicalUrl":"https://aoctrl.com/siemens/3RQ4018-1AE00","factsUrl":"https://aoctrl.com/api/mcp/products/3RQ4018-1AE00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RQ4 coupling relay, 3RQ4018-1AE00, output coupler with integrated relay, 115 V AC/DC, 1 change-over contact, screw terminal, 6.2 mm width, thermal current 6 A.","salesMarkdown":"The Siemens 3RQ4018-1AE00 is a SIRIUS 3RQ4 coupling relay — an output coupler with an integrated relay, designed for narrow-panel mounting at 6.2 mm per channel. It switches one change-over contact rated for a thermal current of 6 A, with a 115 V AC/DC coil. The screw-terminal variant lands in standard control cabinets where you need to isolate a PLC digital output from a higher-current or different-voltage load circuit, or to split a signal across two paths. ## Where It Sits in the Panel The 6.2 mm width lets it snap onto a standard DIN rail alongside other SIRIUS 3RQ4 units, packing multiple isolated outputs into a tight enclosure row. Screw terminals accept 0.2–2.5 mm² solid or stranded wire; strip length around 8 mm. The narrow pitch means you can fit roughly 16 of these per 100 mm of rail — useful when a control cabinet needs many dry-contact outputs for valve banks or alarm annunciators.","metaTitle":"Siemens 3RQ4018-1AE00 SIRIUS 3RQ4 Coupling Relay, 115 V AC/D","metaDescription":"Siemens 3RQ4018-1AE00 SIRIUS 3RQ4 coupling relay. 115 V AC/DC coil, 1 change-over contact, 6 A thermal current. Screw terminal, 6.2 mm wide. Active production, RoHS compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Motor Control Accessories"],"specifications":{"title":"3RQ4018-1AE00","Group Code":"R711","description":"output coupler with integrated relay, 115 V AC/DC, 1 change-over contact, screw terminal, width 6.2 mm, thermal current 6 A","Product Group":"4950","Product class":"A: Standard product which is a stock item could be returned within the returns guidelines/period.","Quantity Unit":"1 Piece","Product Family":"SIRIUS 3RQ4 coupling relays, narrow design","lifecycle_stage":"current","Packaging Quantity":"1","Export Control Regulations":"AL : N / ECCN : EAR99","Packaging dimensions (L x W x H)":"95.00 x 93.00 x 65.00 mm","Compliance with the substance restrictions according to RoHS directive":"Since: 26-09-24","REACH Art. 33 Duty to inform according to the current list of candidates":"Lead CAS-No. 7439-92-1 > 0,1 % (w / w)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/15517ed2527caa8a4c5d48bab34554da.pdf","sourceUrl":"https://sieportal.siemens.com/en-ae/products-services/detail/3RQ4018-1AE00?tree=CatalogTree"},"ai":{"faq":[{"question":"What compliance documentation is available for this relay?","answer":"RoHS compliance is confirmed effective 26 September 2024. REACH Article 33 declares lead (CAS 7439-92-1) above 0.1% w/w. Export control is AL: N / ECCN: EAR99. The manufacturer provides a CE declaration and material compliance data on request."},{"question":"What is the group code and product group for the 3RQ4018-1AE00?","answer":"Group Code R711, Product Group 4950. These are Siemens internal identifiers used for catalog classification and cross-referencing within the SIRIUS 3RQ4 family."},{"question":"What is the thermal current rating and what does it mean?","answer":"The thermal current (Ith) is 6 A. This is the continuous current the relay contact can carry in resistive load without exceeding its temperature rise limit. For inductive or motor loads, the switching capacity is lower and depends on the duty class (AC-15, DC-13)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RQ4018-1AE00","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/3RQ4018-1AE00 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}