{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1046-1CP04-0KV0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1046-1CP04-0KV0","canonicalUrl":"https://aoctrl.com/siemens/3RT1046-1CP04-0KV0","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1046-1CP04-0KV0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, 3RT1046-1CP04-0KV0, S3 size, 55 kW at 500 V AC-3, screw-type terminals, 188 mm depth.","salesMarkdown":"It's rated for 55 kW at 500 V in AC-3 duty, which covers the majority of three-phase induction motor starts across pumps, fans, and conveyors. The 45 kW at 400 V AC-2 rating handles slip-ring or wound-rotor motors where the load is switched under reduced current. Depth is 188 mm, so check your enclosure depth before panel layout. Built-in auxiliary contacts are rated at 10 A at 24 V, 6 A at 230 V, and 3 A at 400 V. For DC switching, the ratings drop to 2 A at 60 V, 1 A at 110 V, and 0.3 A at 220 V — the DC arc extinction is harder, so stay within these limits for PLC or relay coil loads.","metaTitle":"Siemens 3RT1046-1CP04-0KV0 SIRIUS Power Contactor, S3, 55 kW","metaDescription":"Siemens SIRIUS power contactor 3RT1046-1CP04-0KV0, S3 frame, 55 kW at 500 V, AC-3. Active production. Screw terminals, 188 mm depth. RFQ for pricing.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"188 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), max. 2x (0.75 ... 4 mm²)","Width":"70 mm","at AC":"10.6g / 5 ms, 6.2g / 10 ms","at DC":"14 ... 20 ms","Height":"146 mm","Stranded":"2x (10 ... 50 mm²)","at 50 Hz":"0.8 ... 1.1","Arcing Time":"10 ... 15 ms","On The Front":"IP20; IP20 on the front with cover / box terminal","1 Rated Value":"50 Hz","During Storage":"-55 ... +80 °C","Of The Terminal":"IP00","at AC-1 maximum":"900 1/h","at AC-2 maximum":"350 1/h","at AC-3 maximum":"850 1/h","at AC-4 maximum":"250 1/h","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Fastening Method":"screw and snap-on mounting onto 35 mm and 75 mm standard mounting rail","Size Of Contactor":"S3","Solid Or Stranded":"2x (2.5 ... 16 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":"10 000 000","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":"230 V","at 500 V rated value":"55 kW","at 690 V rated value":"25.4 kW","Side-By-Side Mounting":"Yes","at 1000 V rated value":"37 W","For Main Current Circuit":"screw-type terminals","at AC-2 at 400 V rated value":"45 kW","at AC-4 at 400 V rated value":"80 A","Substance Prohibitance (Date)":"05/01/2012","at 40 °C minimum permissible":"50 mm²","at 60 °C minimum permissible":"35 mm²","Design Of The Surge Suppressor":"with varistor","Insulation Voltage Rated Value":"1 000 V","at 230 V at 60 °C rated value":"38 kW","at 690 V at 60 °C rated value":"114 kW","at 1000 V at 60 °C rated value":"98 W","at AWG cables for main contacts":"2x (10 ... 1/0)","For Auxiliary And Control Circuit":"screw-type terminals","With Type Of Assignment 2 Required":"fuse gL/gG: 160 A","Surge Voltage Resistance Rated Value":"6 kV","With Type Of Coordination 1 Required":"fuse gL/gG: 250 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":"3","reference code according to IEC 81346-2":"Q","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","Contact Reliability Of Auxiliary Contacts":"1 faulty switching per 100 million (17 V, 1 mA)","Thermal Short-Time Current Limited To 10 S":"760 A","Finely Stranded Without Core End Processing":"2x (10 ... 35 mm²)","apparent holding power of magnet coil at AC":"22 VA","apparent pick-up power of magnet coil at AC":"270 VA","Type Of Voltage Of The Control Supply Voltage":"AC","Required Spacing For Grounded Parts At The Side":"6 mm","contact rating of auxiliary contacts according to UL":"A600 / Q600","Inductive Power Factor With Closing Power Of The Coil":"0.68","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Inductive Power Factor With The Holding Power Of The Coil":"0.27","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":"2","number of NO contacts for auxiliary contacts instantaneous contact":"2","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=180825&mlfb=3RT1046-1CP04-0KV0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1046-1CP04-0KV0/alternatives.json"},"ai":{"faq":[{"question":"What are the key power ratings for this contactor?","answer":"It's rated for 55 kW at 500 V AC-3 (standard motor starting), 45 kW at 400 V AC-2 (slip-ring motors), and 80 A at 400 V AC-4 (reversing/jogging). The auxiliary contacts handle 10 A at 24 V and 6 A at 230 V AC."},{"question":"Will this fit in a panel designed for a 3RT1036-1AB00?","answer":"No. The 3RT1036-1AB00 is an S2 frame size; this 3RT1046-1CP04-0KV0 is an S3 frame. The mounting footprint, DIN rail clip positions, and terminal spacing are different. A direct mechanical swap is not possible without panel modifications."},{"question":"What wire sizes does the main circuit accept?","answer":"Screw-type terminals accept solid wire from 2x 0.5 mm² up to 2x 4 mm², and stranded wire from 2x 10 mm² up to 2x 50 mm². For the auxiliary circuit, solid wire from 0.5 mm² to 4 mm² per clamp is supported."},{"question":"What is the depth of this contactor?","answer":"The depth is 188 mm. Width is 70 mm and height is 146 mm. Ensure your enclosure has at least 200 mm clearance behind the panel door for wiring and arc flash distance."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1046-1CP04-0KV0","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/3RT1046-1CP04-0KV0 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}}