{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1016-2MB42-0KT0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1016-2MB42-0KT0","canonicalUrl":"https://aoctrl.com/siemens/3RT1016-2MB42-0KT0","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1016-2MB42-0KT0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, size S00, 24 VDC coil, 10 A AC-12, spring-loaded terminals, IP20 front, 45 mm width, screw and snap-on DIN rail mounting.","salesMarkdown":"The Siemens SIRIUS 3RT1016-2MB42-0KT0 is a size S00 power contactor with a 24 VDC coil, rated 10 A at 24 V for AC-12 duty. The 10 A AC-12 rating at 24 V is the resistive-load switching capacity — that's the figure to match against your control transformer or heater load, not the motor-duty numbers. For motor switching, the contactor is rated 4.5 kW at 500 V and 5.5 kW at 690 V, so it handles standard three-phase induction motors up to about 5.5 kW at 690 V line voltage. The coil holds at 1.4 W DC (closing and holding power are the same), and the mechanical life is 30 million cycles — that's a long service interval for a panel that cycles once per minute. For short-circuit protection, type of coordination 2 requires a gL/gG fuse rated 20 A; type 1 coordination allows a 35 A fuse. That's the spec your panel designer needs to size the upstream protection device. ## Integration notes Side-by-side mounting is allowed (6 mm spacing at the side), so you can pack multiple units in a row without derating. The spring-loaded terminals accept 2x (0.25 to 2.5 mm²) solid or stranded wire (AWG 24 to 14) — strip length is not stated here, but standard practice for spring-cage is 8–10 mm.","metaTitle":"Siemens 3RT1016-2MB42-0KT0 SIRIUS Power Contactor, S00, 24 V","metaDescription":"Siemens SIRIUS 3RT1016-2MB42-0KT0 power contactor, size S00, 24 VDC coil, 10 A AC-12, spring terminals, IP20. Active production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"73 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":"24 V","On The Front":"IP20","Initial Value":"0.82","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":"2.15","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 500 V rated value":"4.5 kW","at 690 V rated value":"5.5 kW","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","at AC-4 at 400 V rated value":"8.5 A","Closing power of magnet coil at DC":"1.4 W","Holding power of magnet coil at DC":"1.4 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":"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","Finely Stranded Without Core End Processing":"2x (0.25 ... 2.5 mm²)","Type of voltage of the control supply voltage":"DC","For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gL/gG: 10 A"}},"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=56680&mlfb=3RT1016-2MB42-0KT0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1016-2MB42-0KT0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RT1016-2MB42-0KT0?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What is the closest functional second-source to 3RT1016-2MB42-0KT0?","answer":"The 3RT1016-2AP02 is a peer in the same SIRIUS S00 family but uses a different coil voltage and terminal type. The 3RT1016-2MB42-0KT0 has a 24 VDC coil and spring-loaded terminals; the 2AP02 variant uses a different coil voltage and screw terminals. They share the same footprint and mounting rail, so a panel swap would not require rewiring the DIN rail, but the coil supply and terminal tooling differ."},{"question":"What is the depth of 3RT1016-2MB42-0KT0?","answer":"The depth is 73 mm. That's the dimension from the DIN rail mounting surface to the front of the contactor — important for enclosure depth clearance."},{"question":"What wire size does the spring terminal accept?","answer":"The spring-loaded terminals accept 2x (0.25 to 2.5 mm²) solid or stranded copper, or 2x AWG 24 to 14. No ferrule requirement is stated, but ferruled stranded wire is standard practice for spring-cage connections."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1016-2MB42-0KT0","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/3RT1016-2MB42-0KT0 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}}