{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1346-1AN20","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1346-1AN20","canonicalUrl":"https://aoctrl.com/siemens/3RT1346-1AN20","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1346-1AN20","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS S3 power contactor, 3RT1346-1AN20, screw-type terminals, 53 kW at 230 V (60 °C), insulation voltage 1 000 V, size S3, 146 x 93 x 139 mm.","salesMarkdown":"The Siemens 3RT1346-1AN20 is a SIRIUS S3 power contactor, screw-type terminals on the main circuit, rated for motor loads up to 53 kW at 230 V (60 °C ambient) with an insulation voltage of 1 000 V. Snaps onto 35 mm or 75 mm DIN rail, or screws directly to the panel — side-by-side mounting permitted, so no derating gap needed between units in a crowded enclosure. The AC-3 motor-switching curve is the one that governs real motor loads, not the AC-1 resistive figure. At 230 V and 60 °C this contactor handles 53 kW — that is a 3-pole 230 V motor load. The 1 000 V rated insulation voltage (degree of pollution 3) means it can sit in a 480 V or 600 V panel with full clearance; pollution degree 3 is the standard for industrial enclosures where conductive dust or condensation is possible. DC switching is covered: 10 A at 24 V, 2 A at 60 V, 1 A at 110 V, 0.3 A at 220 V — these are the DC-1 resistive current limits. For inductive DC loads (brake coils, solenoid valves) derate further; the arcing time of 10–15 ms on AC gives a sense of the contact gap speed. Terminal capacity: stranded wire up to 2x 50 mm² (at 40 °C) or 2x 35 mm² (at 60 °C). Solid wire accepts 2x (0.5–1.5 mm²) on the control side, 2x (0.75–2.5 mm²) on the auxiliary contacts. AWG equivalent for the main contacts is 2x (10–1/0). Front panel is IP20 with the cover or box terminal installed; the terminal block itself is IP00 (no finger-safe protection without the cover).","metaTitle":"Siemens 3RT1346-1AN20 SIRIUS S3 Power Contactor, 53 kW at 23","metaDescription":"Siemens SIRIUS S3 power contactor 3RT1346-1AN20. Rated 53 kW at 230 V (60 °C). Screw terminals, 1 000 V insulation voltage. Active production. Sourced to order against RFQ.","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","at 60 Hz":"0.85 ... 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","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 60 Hz rated value":"220 V","Side-By-Side Mounting":"Yes","For Main Current Circuit":"screw-type terminals","Substance Prohibitance (Date)":"05/01/2012","at 40 °C minimum permissible":"50 mm²","at 60 °C minimum permissible":"35 mm²","Insulation Voltage Rated Value":"1 000 V","at 230 V at 60 °C rated value":"53 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: 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":"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":"27 VA","apparent pick-up power of magnet coil at AC":"298 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":"0.7","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Inductive Power Factor With The Holding Power Of The Coil":"0.29","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=258828&mlfb=3RT1346-1AN20","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1346-1AN20/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional second-source to 3RT1346-1AN20?","answer":"The 3RT1044-1FB46 is a smaller-frame SIRIUS contactor (size S2 vs S3) with lower current ratings — it will not drop into a panel wired for the S3 footprint without rewiring the main power terminals and checking the DIN-rail space. The 3RT5045-1AF00 is a newer SIRIUS Innovation series contactor in a comparable S3 frame; it shares the same mounting rail and terminal layout but uses spring-cage terminals instead of screw-type. The 3RT5044-1BM40 is the same Innovation series in size S2. For a direct screw-terminal replacement in the same S3 footprint, the 3RT1346-1AN20 is the correct active part."},{"question":"What compliance documentation does Siemens provide for 3RT1346-1AN20?","answer":"The part carries a substance prohibitance date of 05/01/2012, indicating RoHS compliance from that date. The brand (Siemens) typically provides CE, UL, CSA, and IEC 60947-4-1 declarations — consult the product documentation for the specific certification numbers per lot."},{"question":"Where can I buy 3RT1346-1AN20 and how is it quoted?","answer":"Sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — no stock count or price is published here."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1346-1AN20","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/3RT1346-1AN20 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}}