{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1044-1AP60","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1044-1AP60","canonicalUrl":"https://aoctrl.com/siemens/3RT1044-1AP60","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1044-1AP60","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS S3 power contactor, 3RT1044-1AP60, 37 kW at 500 V AC-3, 18.6 kW at 690 V, screw-type terminals, IP20 front, 70 x 146 x 139 mm.","salesMarkdown":"The Siemens 3RT1044-1AP60 is a SIRIUS S3 power contactor built for motor switching in control panels. It carries a 37 kW rating at 500 V AC-3 and 18.6 kW at 690 V AC-3, which covers the common 400 V and 690 V industrial motor loads in Europe and export machinery. Mounting is screw-and-snap-on onto 35 mm or 75 mm standard DIN rail, and side-by-side mounting is permitted — no derating gap required between units in a multi-contactor group. The IP20 front with cover or box terminal keeps live parts behind the panel door, while the terminal block itself is IP00, which is normal for this class. ## Sizing and duty-cycle fit For a packaging line running 20 cycles per minute, the AC-3 rate gives headroom; for a reversing conveyor section with frequent plugging, the AC-4 rate governs the selection. The terminal wiring capacities are identical across these S3 variants — solid 2x (0.5–1.5 mm²) and stranded 2x (10–50 mm²) — so the control wiring plan stays unchanged. ## Environmental and installation limits Coil operating range is 0.8–1.1 x rated voltage at both 50 Hz and 60 Hz, with an arcing time of 10–15 ms and closing time of 10–19 ms. These timing figures matter for coordination with upstream short-circuit protection devices — the contactor clears its arc before a fast-acting fuse element reaches its melting point.","metaTitle":"Siemens 3RT1044-1AP60 SIRIUS Power Contactor, 37 kW at 500 V","metaDescription":"Siemens 3RT1044-1AP60 SIRIUS S3 power contactor, 37 kW at 500 V AC-3, 18.6 kW at 690 V. Screw terminals, IP20 front. Current lifecycle stage. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"139 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 ... 19 ms","Height":"146 mm","Stranded":"2x (10 ... 50 mm²)","at 50 Hz":"0.8 ... 1.1","at 60 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","2 Rated Value":"60 Hz","During Storage":"-55 ... +80 °C","Of The Terminal":"IP00","at AC-1 maximum":"1 000 1/h","at AC-2 maximum":"400 1/h","at AC-3 maximum":"1 000 1/h","at AC-4 maximum":"300 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":"220 V","at 500 V rated value":"37 kW","at 60 Hz rated value":"240 V","at 690 V rated value":"18.6 kW","Side-By-Side Mounting":"Yes","at 1000 V rated value":"30 W","For Main Current Circuit":"screw-type terminals","at AC-2 at 400 V rated value":"30 kW","at AC-4 at 400 V rated value":"55 A","Substance Prohibitance (Date)":"05/01/2012","at 40 °C minimum permissible":"35 mm²","at 60 °C minimum permissible":"35 mm²","Insulation Voltage Rated Value":"1 000 V","at 230 V at 60 °C rated value":"34 kW","at 690 V at 60 °C rated value":"102 kW","at 1000 V at 60 °C rated value":"66 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: 125 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":"600 A","Finely Stranded Without Core End Processing":"2x (10 ... 35 mm²)","apparent holding power of magnet coil at AC":"20 VA","apparent pick-up power of magnet coil at AC":"232 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":"0.55","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Inductive Power Factor With The Holding Power Of The Coil":"0.28","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":"0","number of NO contacts for auxiliary contacts instantaneous contact":"0","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=375660&mlfb=3RT1044-1AP60","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1044-1AP60/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3RT1044-1AP60?","answer":"Pricing and availability are confirmed at quote time against an RFQ through independent distribution. Submit a request and the current landed cost and lead time will be returned."},{"question":"What is the closest functional second-source for 3RT1044-1AP60?","answer":"The 3RT1044-1FB46 is a peer S3 frame contactor with the same 70 mm width, same screw-terminal wiring capacities, and same AC-3 motor ratings. It drops into the same DIN-rail footprint without rewiring the main or control circuits."},{"question":"What wire sizes does the 3RT1044-1AP60 accept?","answer":"Solid wire: 2x (0.5–1.5 mm²), 2x (0.75–2.5 mm²), max 2x (0.75–4 mm²). Stranded wire: 2x (10–50 mm²) for the main circuit. The control terminals accept 2x (2.5–16 mm²) solid or stranded."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1044-1AP60","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/3RT1044-1AP60 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}}