{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1316-1BM40","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1316-1BM40","canonicalUrl":"https://aoctrl.com/siemens/3RT1316-1BM40","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1316-1BM40","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, size S00, 4 NO main contacts, 4 kW at 400 V AC-2, 10 A AC-12, screw terminals, snap-on DIN rail, IP20 front.","salesMarkdown":"It is rated for 4 kW at 400 V in AC-2 duty (slip-ring motor starting) and 10 A in AC-12 resistive loads. The coil is a DC-operated economized design — closing and holding power both at 3.3 W DC. The AC-2 rating of 4 kW at 400 V governs motor duty for wound-rotor or slip-ring motors — this is the rating that decides real-world fit, not the higher AC-1 or AC-12 numbers. The 4 NO main contact arrangement is unusual — most size S00 contactors carry 3 NO + 1 NC; this one has no NC main contacts, so if your circuit requires a normally-closed main pole, this is not the right variant. Short-circuit coordination: with type 2 coordination, a 20 A gL/gG fuse limits let-through energy; type 1 allows up to 35 A gL/gG. The coil draws 3.3 W DC both on pickup and hold — no economizer dropout to worry about. ## Wiring and terminal specs Main circuit terminals accept solid or stranded: 2x 0.5–1.5 mm², 2x 0.75–2.5 mm², or max 2x 0.75–4 mm². AWG equivalents: 2x 20–16, 2x 18–14, or 1x 12. Finely stranded with ferrule: same cross-sections. Side clearance of 6 mm is required for heat dissipation when mounting side-by-side — no additional gap needed if ambient stays within rating.","metaTitle":"Siemens 3RT1316-1BM40 SIRIUS Power Contactor, 4 NO, 4 kW AC-","metaDescription":"Siemens SIRIUS 3RT1316-1BM40 power contactor, size S00, 4 NO main contacts, 4 kW at 400 V AC-2, 10 A AC-12. Current lifecycle. Snap-on DIN rail. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"72 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), max. 2x (0.75 ... 4 mm²)","Width":"45 mm","Height":"57.5 mm","Maximum":"2 000 m","At The Side":"6 mm","Rated Value":"220 V","On The Front":"IP20","Initial Value":"0.85","Mounting type":"screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022","Of The Terminal":"IP20","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Full-scale value":"1.1","Size of contactor":"S00","Product brand name":"SIRIUS","Degree of pollution":"3","Product designation":"power contactor","at 24 V rated value":"10 A","at 60 V rated value":"2 A","Of Contactor Typical":"30 000 000","at 110 V rated value":"1 A","at 220 V rated value":"0.3 A","at 230 V rated value":"6 A","at 400 V rated value":"3 A","Instantaneous Contact":"0","Side-by-side mounting":"Yes","For Main Current Circuit":"screw-type terminals","Single Or Multi-Stranded":"2x (0,5 ... 1,5 mm²), 2x (0,75 ... 2,5 mm²), max. 2x (0,75 ... 4 mm²)","at AC-2 at 400 V rated value":"4 kW","Closing power of magnet coil at DC":"3.3 W","Holding power of magnet coil at DC":"3.3 W","Operating current at AC-12 maximum":"10 A","With Type Of Assignment 2 Required":"fuse gL/gG: 20 A","at AWG conductors for main contacts":"2x (20 ... 16), 2x (18 ... 14), 1x 12","With Type Of Coordination 1 Required":"fuse gL/gG: 35 A","Reference code acc. to DIN EN 81346-2":"Q","Number of NC contacts for main contacts":"0","Number of NO contacts for main contacts":"4","Finely Stranded With Core End Processing":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Number of poles for main current circuit":"4","at AWG conductors for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 1x 12","Contact reliability of auxiliary contacts":"1 faulty switching per 100 million (17 V, 1 mA)","For Auxiliary And Control Current Circuit":"screw-type terminals","at ambient temperature 40 °C rated value":"18 A","Type of voltage of the control supply voltage":"DC","Of The Contactor With Added Auxiliary Switch Block Typical":"10 000 000","For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gL/gG: 10 A","Of The Contactor With Added Electronics-Compatible Auxiliary Switch Block Typical":"5 000 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=179058&mlfb=3RT1316-1BM40","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1316-1BM40/alternatives.json"},"ai":{"faq":[{"question":"What are the key dimensions?","answer":"Width 45 mm, height 57.5 mm, depth 72 mm. Mounts on 35 mm DIN rail."},{"question":"What wire sizes does the main terminal accept?","answer":"Solid or stranded: 2x 0.5–1.5 mm², 2x 0.75–2.5 mm², max 2x 0.75–4 mm². AWG: 2x 20–16, 2x 18–14, 1x 12."},{"question":"What compliance documentation is available?","answer":"The part carries reference code Q per DIN EN 81346-2. Degree of pollution 3. No specific RoHS/REACH/UL statements are in this listing; standard Siemens declarations apply per order."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1316-1BM40","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/3RT1316-1BM40 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}