{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1016-2GG21","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1016-2GG21","canonicalUrl":"https://aoctrl.com/siemens/3RT1016-2GG21","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1016-2GG21","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, size S00, 3RT1016-2GG21, 45 mm width, spring-loaded terminals, rated 4 kW at AC-2 400 V, 8.5 A at AC-4 400 V, 30 million mechanical cycles.","salesMarkdown":"## Panel fit and switching duty The 3RT1016-2GG21: Spring-loaded terminals on the main current circuit accept 2x (0.25 to 2.5 mm²) solid or stranded wire, or 2x (24 to 14 AWG). That's a clean push-in connection for panel builders — no screw torque to verify, no loose strands. Rated for AC-2 duty at 4 kW on 400 V (slip-ring motor starting) and AC-4 at 8.5 A on 400 V (plugging/inching). For general resistive loads (AC-1), it handles 10 A at 230 V. The 50 Hz coil holds at 0.8 to 1.1 x rated voltage; 60 Hz coil holds at 0.85 to 1.1 x rated voltage. Mechanical endurance is listed at 30 million cycles typical — that's a long service life for conveyor or pump cycling applications. Terminals carry IP20 finger protection; the front of the device is also IP20. Altitude rating goes to 2 000 m without derating.","metaTitle":"Siemens 3RT1016-2GG21 SIRIUS Power Contactor, Size S00, 4 kW","metaDescription":"Siemens 3RT1016-2GG21 SIRIUS power contactor, size S00, 45 mm width, spring-loaded terminals, 4 kW at AC-2 400 V, currently in production. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"114 mm","Solid":"2x (0.25 ... 2.5 mm²)","Width":"45 mm","Height":"60 mm","Maximum":"2 000 m","at 50 Hz":"0.8 ... 1.1","at 60 Hz":"0.85 ... 1.1","At The Side":"6 mm","On The Front":"IP20","1 Rated Value":"50 Hz","2 Rated Value":"60 Hz","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","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","at 50 Hz rated value":"110 V","at 500 V rated value":"4.5 kW","at 60 Hz rated value":"110 V","at 690 V rated value":"5.5 kW","Instantaneous Contact":"1","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","at AC-4 at 400 V rated value":"8.5 A","Design of the surge suppressor":"with full-wave rectification","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":"3","Finely Stranded With Core End Processing":"2x (0.25 ... 1.5 mm²)","Number of poles for main current circuit":"3","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":"22 A","Apparent holding power of magnet coil at AC":"3.8 V·A","Apparent pick-up power of magnet coil at AC":"3.8 V·A","Finely Stranded Without Core End Processing":"2x (0.25 ... 2.5 mm²)","Type of voltage of the control supply voltage":"AC","Inductive power factor with closing power of the coil":"0.9","Inductive power factor with the holding power of the coil":"0.9","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=399729&mlfb=3RT1016-2GG21","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1016-2GG21/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for 3RT1016-2GG21?","answer":"It's a Size S00 power contactor rated 4 kW at AC-2 400 V, 8.5 A at AC-4 400 V, and 10 A at AC-1 230 V. Mechanical endurance is 30 million cycles."},{"question":"Will 3RT1016-2GG21 drop into a panel specified for 3RT1016-2GG22?","answer":"Both are Size S00 contactors with the same 45 mm width and DIN rail mounting, so the mechanical footprint is identical. The difference is in the coil — 3RT1016-2GG21 has a 50/60 Hz AC coil; 3RT1016-2GG22 uses a different coil variant. Verify coil voltage compatibility before swapping."},{"question":"Where can I buy 3RT1016-2GG21?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at the time of quote."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1016-2GG21","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/3RT1016-2GG21 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}}