{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1344-1AP00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1344-1AP00","canonicalUrl":"https://aoctrl.com/siemens/3RT1344-1AP00","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1344-1AP00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, Size S3, 3RT1344-1AP00, 42 kW at 230 V 50 Hz, 1000 V insulation, screw-type terminals, snap-on mounting.","salesMarkdown":"Dimensions are 146 mm high, 93 mm wide, and 139 mm deep — the 93 mm width is the key panel fill factor when laying out a row of S3 contactors. Solid wire acceptance: 2x (0.5... 1.5 mm²), 2x (0.75... 2.5 mm²), max. 2x (0.75... 4 mm²). Stranded main conductors: 2x (10... 50 mm²). For the main contacts, AWG cables 2x (10... 1/0) are accepted. At 40 °C and 60 °C, the minimum permissible conductor cross-section is 35 mm². The short-circuit protection coordination (type 2) requires a fuse gL/gG: 125 A.","metaTitle":"Siemens 3RT1344-1AP00 SIRIUS Power Contactor, Size S3, 42 kW","metaDescription":"Siemens SIRIUS 3RT1344-1AP00 power contactor, Size S3, 42 kW at 230 V 50 Hz, 1000 V insulation, 6 kV surge, screw terminals, snap-on DIN rail. Current production. Sourced 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":"93 mm","at AC":"10 ... 25 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":"1 000 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","Side-By-Side Mounting":"Yes","For Main Current Circuit":"screw-type terminals","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":"42 kW","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":"4","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":"4","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":"21 VA","apparent pick-up power of magnet coil at AC":"218 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":"0.61","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Inductive Power Factor With The Holding Power Of The Coil":"0.26","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=369512&mlfb=3RT1344-1AP00","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1344-1AP00/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for the 3RT1344-1AP00?","answer":"It is a Size S3 power contactor rated for 42 kW at 230 V 50 Hz, with an insulation voltage of 1000 V and surge voltage resistance of 6 kV. The main circuit uses screw terminals accepting stranded conductors up to 2x 50 mm²."},{"question":"What is the mounting method for this contactor?","answer":"It mounts via screw and snap-on onto 35 mm and 75 mm standard mounting rail, and side-by-side mounting is permitted."},{"question":"What compliance documentation is available for the 3RT1344-1AP00?","answer":"The part carries a RoHS compliance date of 05/01/2012. The insulation voltage rating of 1000 V and pollution degree 3 indicate it meets IEC 60947-4-1 requirements for industrial control equipment."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1344-1AP00","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/3RT1344-1AP00 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}}