{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1076-6QF35","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1076-6QF35","canonicalUrl":"https://aoctrl.com/siemens/3RT1076-6QF35","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1076-6QF35","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT1076-6QF35 power contactor, size S12, 400 A AC-1 rated at 24 V, coil 96-127 V AC/DC, screw fixing, IP00/IP20 front.","salesMarkdown":"The Siemens SIRIUS 3RT1076-6QF35 is a size S12 power contactor rated for 400 A at 24 V in AC-1 duty (resistive load). For motor loads (AC-3), the switching frequency is 420 operations per hour, which is typical for a contactor this size: it handles frequent starting but not high-inertia reversing every few seconds. The coil is rated 96-127 V AC/DC, meaning it pulls in reliably across that range and drops out below the lower threshold. Opening delay is 80-100 ms on both AC and DC supplies, so it's not a fast-acting device — expect that lag if you're coordinating with a safety relay or a fast solid-state switch. Mounting is screw fixing — no DIN-rail snap-on here. The contactor measures 214 mm high, 180 mm wide, 225 mm deep, so it needs a dedicated backplate or sub-panel, not a standard DIN-rail enclosure. That's tighter than many smaller contactors; plan the gland plate and busbar routing accordingly. The main power terminals accept stranded cable from 70 mm² up to 240 mm² — that's substantial cable, so expect large lugs and a torque wrench. Auxiliary terminals accept 2x 0.5-1.5 mm² or 2x 0.75-2.5 mm² solid, or up to 4 mm² max. Coil terminals are screw-type, same as the auxiliaries. Ingress protection is IP00 on the body, IP20 on the front with the cover or box terminal fitted. That means the contactor itself is not touch-safe without the cover — it's intended for a closed panel, not a standalone installation.","metaTitle":"Siemens 3RT1076-6QF35 SIRIUS Power Contactor, 400 A AC-1, 96","metaDescription":"Siemens SIRIUS 3RT1076-6QF35 power contactor, size S12, 400 A AC-1 at 24 V, coil 96-127 V AC/DC. Screw fixing, IP00/IP20 front. Active production, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"225 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), max. 2x (0.75 ... 4 mm²)","Width":"180 mm","at AC":"80 ... 100 ms","at DC":"80 ... 100 ms","Height":"214 mm","Maximum":"2 000 m","Upwards":"10 mm","Forwards":"20 mm","Stranded":"70 ... 240 mm²","at 50 Hz":"0.8","at 60 Hz":"0.8 ... 1.1","Downwards":"10 mm","Arcing time":"10 ... 15 ms","At The Side":"10 mm","Rated Value":"96 ... 127 V","On The Front":"IP00; IP20 on the front with cover / box terminal","Initial Value":"0.8","Mounting type":"screw fixing","During Storage":"-55 ... +80 °C","Of Magnet Coil":"Screw-type terminals","Of The Terminal":"IP00","at AC-1 maximum":"500 1/h","at AC-2 maximum":"170 1/h","at AC-3 maximum":"420 1/h","at AC-4 maximum":"130 1/h","lifecycle_stage":"current","Auxiliary switch":"Yes","During Operation":"-25 ... +55 °C","Full-scale value":"1.1","Mounting position":"with vertical mounting surface +/-90° rotatable, with vertical mounting surface +/- 22.5° tiltable to the front and back","Size of contactor":"S12","Product brand name":"SIRIUS","Product designation":"Power contactor","at 24 V rated value":"400 A","at 48 V rated value":"2 A","at 60 V rated value":"2 A","Of Contactor Typical":"10 000 000","at 110 V rated value":"1 A","at 125 V rated value":"0.9 A","at 220 V rated value":"0.3 A","at 230 V rated value":"160 kW","at 400 V rated value":"98 kW","at 440 V rated value":"1.4 A","at 480 V rated value":"477 A","at 50 Hz rated value":"96 ... 127 V","at 500 V rated value":"2 A","at 60 Hz rated value":"96 ... 127 V","at 600 V rated value":"472 A","at 690 V rated value":"1 A","Instantaneous Contact":"1","Side-by-side mounting":"Yes","at 1000 V rated value":"250 kW","For Auxiliary Contacts":"18 ... 14","For Main Current Circuit":"Connection bar","Single Or Multi-Stranded":"2x (0,5 ... 1,5 mm²), 2x (0,75 ... 2,5 mm²), max. 2x (0,75 ... 4 mm²)","at 200/208 V rated value":"150 hp","at 220/230 V rated value":"200 hp","at 460/480 V rated value":"400 hp","at 575/600 V rated value":"500 hp","Of Main Circuit Rated Value":"8 kV","at AC-3 rated value maximum":"1 000 V","at maximum AC-1 rated value":"370 mm²","at AC-2 at 400 V rated value":"250 kW","at AC-4 at 400 V rated value":"430 A","Design of the surge suppressor":"with varistor","at 230 V at 60 °C rated value":"208 kW","at 400 V at 60 °C rated value":"362 kW","at 690 V at 60 °C rated value":"624 kW","at 1000 V at 60 °C rated value":"329 kW","Of Auxiliary Circuit Rated Value":"6 kV","at AC-5a up to 690 V rated value":"536 A","at AC-5b up to 400 V rated value":"415 A","Function Module For Communication":"No","Closing power of magnet coil at DC":"800 W","Holding power of magnet coil at DC":"5 W","Operating current at AC-12 maximum":"10 A","With Type Of Assignment 2 Required":"gG: 500 A (690 V, 100 kA), aM: 500 A (690 V, 50 kA), BS88: 500 A (415 V, 50 kA)","At Contactor For Auxiliary Contacts":"Screw-type terminals","Protection against electrical shock":"finger-safe when touched vertically from front acc. to IEC 60529","at AWG conductors for main contacts":"2/0 ... 500 kcmil","Mirror contact acc. to IEC 60947-4-1":"Yes","With Type Of Coordination 1 Required":"gG: 630 A (690 V, 100 kA)","Reference code acc. to DIN EN 81346-2":"Q","with high demand rate acc. to SN 31920":"1 000 000","Number of NO contacts for main contacts":"3","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":"3","Voltage at PLC-control input rated value":"24 V","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":"610 A","Thermal short-time current limited to 10 s":"4 000 A","Type of voltage of the control supply voltage":"AC/DC","between coil and main contacts acc. to EN 60947-1":"690 V","positively driven operation acc. to IEC 60947-5-1":"No","Contact rating of auxiliary contacts according to UL":"A600 / Q600","Of The Contactor With Added Auxiliary Switch Block Typical":"10 000 000","Operating range factor of the voltage at PLC-control input":"0.8 ... 1.1","For Short-Circuit Protection Of The Auxiliary Switch Required":"gG: 10 A (500 V, 1 kA)","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=502513&mlfb=3RT1076-6QF35","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1076-6QF35/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for the 3RT1076-6QF35?","answer":"AC-1 rated current 400 A at 24 V, coil voltage 96-127 V AC/DC, size S12 frame. Mechanical life is 10 million operations. Switching frequency: 500 ops/h AC-1, 420 ops/h AC-3, 170 ops/h AC-2, 130 ops/h AC-4."},{"question":"What cable sizes does the 3RT1076-6QF35 accept?","answer":"Main power terminals accept stranded cable 70-240 mm². Auxiliary terminals accept 2x 0.5-1.5 mm² or 2x 0.75-2.5 mm² solid, max 2x 0.75-4 mm²."},{"question":"What is the mounting and clearance requirement?","answer":"Screw fixing. Clearances: 10 mm up/down, 20 mm forward, 10 mm side. Dimensions: 214 x 180 x 225 mm (H x W x D)."},{"question":"What is the operating temperature range?","answer":"During operation: -25 to +55 °C. Storage: -55 to +80 °C. Maximum altitude 2000 m."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1076-6QF35","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/3RT1076-6QF35 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}}