{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1316-2BG40","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1316-2BG40","canonicalUrl":"https://aoctrl.com/siemens/3RT1316-2BG40","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1316-2BG40","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, 3RT1316-2BG40, size S00, 4 NO main contacts, spring-loaded terminals, 10 A AC-12, IP20.","salesMarkdown":"It carries four normally-open main contacts and is rated for a maximum operating current of 10 A under AC-12 duty, which covers resistive and solid-state loads. For motor switching under AC-2 at 400 V, it is rated for 4 kW, so it handles slip-ring motors or other loads where the contactor closes and opens under moderate inrush. The AC-12 rating of 10 A is the thermal current the contactor can carry continuously in a resistive circuit — this is the figure to check against your heater or transformer load. The main contacts are also rated at 230 V for 6 A and at 400 V for 3 A, so if you are switching a 400 V resistive load, the 3 A figure is the limit per the datasheet. The auxiliary contact block is rated at 125 V with a current that varies by voltage: 10 A at 24 V, 2 A at 60 V, 1 A at 110 V, and 0.3 A at 220 V. These are the switching capacities for the control circuit — the 24 V figure is what you use for a typical PLC output driving a relay, while the 220 V figure is for pilot-duty circuits in older panels. That is a constant power draw regardless of the control voltage, so the thermal load on the enclosure is predictable. The operating voltage range factor is 0.85 to 1.1 times the rated value, meaning the coil will pick up reliably at 85% of nominal and will not overheat at 110%. The main circuit terminals are spring-loaded, accepting solid or stranded conductors from 0.25 to 2.5 mm² (2x per terminal), or AWG 24 to 14. Finely stranded wire with ferrule is also supported from 0.25 to 1.5 mm². No screwdriver torque to set — just strip to 8 mm and push in. This speeds up panel wiring and reduces the chance of loose connections under vibration. ## Environmental and coordination For short-circuit protection, type of coordination 1 requires a gL/gG fuse of 35 A, while type 2 requires 20 A — the lower fuse rating limits let-through energy to protect the contactor from weld damage. Electrical life depends on the switched current and voltage; for a given load, consult the derating curve in the full datasheet.","metaTitle":"Siemens 3RT1316-2BG40 SIRIUS Power Contactor, S00, 4 NO, 10","metaDescription":"Siemens SIRIUS 3RT1316-2BG40 power contactor, size S00, 4 NO main contacts, 10 A AC-12 max, spring-loaded terminals, IP20, current production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"72 mm","Solid":"2x (0.25 ... 2.5 mm²)","Width":"45 mm","Height":"60 mm","Maximum":"2 000 m","At The Side":"6 mm","Rated Value":"125 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":"spring-loaded terminals","Single Or Multi-Stranded":"2x (0,25 ... 2,5 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 (24 ... 14)","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 (0.25 ... 1.5 mm²)","Number of poles for main current circuit":"4","at AWG conductors for auxiliary contacts":"2x (24 ... 14)","Contact reliability of auxiliary contacts":"1 faulty switching per 100 million (17 V, 1 mA)","For Auxiliary And Control Current Circuit":"spring-loaded terminals","at ambient temperature 40 °C rated value":"18 A","Finely Stranded Without Core End Processing":"2x (0.25 ... 2.5 mm²)","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=306010&mlfb=3RT1316-2BG40","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1316-2BG40/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for the 3RT1316-2BG40?","answer":"It is a size S00 power contactor with 4 NO main contacts, rated 10 A AC-12 maximum, 4 kW at 400 V AC-2 for motor duty, and 6 A at 230 V or 3 A at 400 V for resistive loads. The DC coil draws 3.3 W. Auxiliary contacts are rated at 125 V with currents from 10 A at 24 V down to 0.3 A at 220 V."},{"question":"What are the mounting dimensions and terminal details?","answer":"The contactor is 45 mm wide, 60 mm high, and 72 mm deep. It mounts on a 35 mm DIN rail per EN 50022. The spring-loaded terminals accept 0.25 to 2.5 mm² solid or stranded wire (2x per terminal), or AWG 24 to 14. Side clearance of 6 mm is required for heat dissipation."},{"question":"What is the closest functional second-source to the 3RT1316-2BG40?","answer":"The 3RT1016-2AP02 is a peer in the same SIRIUS family and size S00, but it uses screw terminals instead of spring-loaded terminals. The 3RT1316-2BG40's spring-loaded terminals are the main differentiator for faster wiring and vibration resistance. Panel cutouts and DIN rail footprint are the same, so a swap is possible if the terminal type is acceptable."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1316-2BG40","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/3RT1316-2BG40 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}}