{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1316-1BB40","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1316-1BB40","canonicalUrl":"https://aoctrl.com/siemens/3RT1316-1BB40","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1316-1BB40","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, 3RT1316-1BB40, size S00, 4-pole, 24 V DC coil, screw terminals, IP20 finger-safe enclosure.","salesMarkdown":"Four normally-open main contacts handle the power circuit, with a rated operational current of 10 A at AC-12 (resistive) and a 24 V DC coil that pulls 3.3 W on closing and holds at the same power — no AC hum, no inrush spike to worry about on a DC supply. The AC-2 rating at 400 V gives 4 kW switching capacity for slip-ring motor loads, while the AC-12 rating of 10 A covers resistive heater or transformer primaries. For DC switching, the contactor is rated 10 A at 24 V, 2 A at 60 V, 1 A at 110 V, and 0.3 A at 220 V — note the steep derating as voltage rises, typical for DC interruption where arc extinction is harder. Short-circuit coordination is specified for both Type 1 and Type 2: a gL/gG fuse of 35 A for Type 1 (no damage to the contactor but may need contact cleaning), or 20 A for Type 2 (contactor remains fully serviceable after a fault). This lets the panel designer choose the protection level that matches the uptime requirements of the line. The enclosure carries IP20 on both the front and terminals — finger-safe but not washdown-rated. ## Termination and wiring notes Screw-type terminals on both the main and auxiliary circuits accept solid or stranded wire: 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or max 2x (0.75 to 4 mm²). For AWG, the range is 2x (20 to 16), 2x (18 to 14), or 1x 12. Finely stranded conductors need ferruled ends. Side-by-side mounting is permitted, so multiple contactors can be ganged without spacing — useful for compact multi-load panels.","metaTitle":"Siemens 3RT1316-1BB40 SIRIUS Power Contactor, 24 VDC, 4-Pole","metaDescription":"Siemens 3RT1316-1BB40 SIRIUS power contactor, 24 VDC coil, 4 NO main contacts, size S00. Rated operational current 10 A at AC-12. Active lifecycle, sourced to order. Request quote.","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","Rated Value":"24 V","On The Front":"IP20","Initial Value":"0.85","Of The Terminal":"IP20","lifecycle_stage":"current","Fastening Method":"screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022","Full-Scale Value":"1.1","Size Of Contactor":"S00","Solid Or Stranded":"2x (0,5 ... 1,5 mm²), 2x (0,75 ... 2,5 mm²), max. 2x (0,75 ... 4 mm²)","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","Side-By-Side Mounting":"Yes","For Main Current Circuit":"screw-type terminals","at AC-2 at 400 V rated value":"4 kW","at AWG cables for main contacts":"2x (20 ... 16), 2x (18 ... 14), 1x 12","For Auxiliary And Control Circuit":"screw-type terminals","With Type Of Assignment 2 Required":"fuse gL/gG: 20 A","closing power of magnet coil at DC":"3.3 W","holding power of magnet coil at DC":"3.3 W","reference code acc. to IEC 81346-2":"Q","Ambient Temperature During Operation":"-25 ... +60 °C","With Type Of Coordination 1 Required":"fuse gL/gG: 35 A","at AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 1x 12","operational current at AC-12 maximum":"10 A","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","Contact Reliability Of Auxiliary Contacts":"1 faulty switching per 100 million (17 V, 1 mA)","Type Of Voltage Of The Control Supply Voltage":"DC","Required Spacing For Grounded Parts At The Side":"6 mm","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","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","number of NC contacts for auxiliary contacts instantaneous contact":"0","number of NO contacts for auxiliary contacts instantaneous contact":"0","Of The Contactor With Added Electronically Optimized 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=346878&mlfb=3RT1316-1BB40","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1316-1BB40/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional alternative to the 3RT1316-1BB40?","answer":"The 3RT1016-1BB42 is a similar SIRIUS size S00 contactor with a 24 V DC coil and 4 NO contacts, but it uses a different terminal arrangement and has a slightly lower rated current in some duty classes. The 3RT1316-1BB40 is the higher-rated variant in the same frame size. Verify the specific AC and DC switching ratings against your load before substituting."},{"question":"Where can I buy the 3RT1316-1BB40 and how is it quoted?","answer":"This part is sourced and quoted to order through independent industrial distribution. Submit an RFQ for current pricing and availability — confirmed at quote time, not before."},{"question":"What compliance documentation is available for the 3RT1316-1BB40?","answer":"As a Siemens SIRIUS product, it carries CE marking and is designed to IEC 60947-4-1. RoHS and REACH declarations are standard with the product documentation. UL/CSA listings are typical for this series; verify the specific certification mark on the nameplate for your jurisdiction."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1316-1BB40","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/3RT1316-1BB40 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}}