{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1346-1AH20","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1346-1AH20","canonicalUrl":"https://aoctrl.com/siemens/3RT1346-1AH20","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1346-1AH20","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, 3RT1346-1AH20, size S3, 53 kW at 230 V 60 °C, screw-type terminals, DIN-rail mount.","salesMarkdown":"Solid wire acceptance: 2x (0.5... 1.5 mm²), 2x (0.75... 2.5 mm²), max. 2x (0.75... 4 mm²). Stranded: 2x (10... 50 mm²). At 60 °C minimum permissible conductor is 35 mm². ## Coil and switching characteristics Coil operates at 50 Hz (rated 48 V) and 60 Hz (rated 48 V). The operating range at 50 Hz is 0.8 to 1.1 times rated voltage; at 60 Hz it is 0.85 to 1.1. Maximum mechanical switching rate at AC-1 duty is 1 000 operations per hour. Typical mechanical life is 10 000 000 operations. Auxiliary contacts are rated for DC switching: 10 A at 24 V, 2 A at 60 V, 1 A at 110 V, 0.3 A at 220 V. These are the figures to use when sizing the control circuit — the DC ratings drop sharply with voltage, so a 24 VDC pilot light is fine, but a 220 VDC interlock will need a contactor with higher DC ratings or a separate relay. The part carries a substance prohibitance date of 05/01/2012, aligning with RoHS and REACH compliance. Standard documentation includes the datasheet, CE declaration, and UL/CSA file information — request these at time of RFQ if your quality team needs them for the BOM package.","metaTitle":"Siemens SIRIUS 3RT1346-1AH20 Power Contactor, S3, 53 kW at 2","metaDescription":"Siemens SIRIUS 3RT1346-1AH20 power contactor, size S3, rated 53 kW at 230 V 60 °C. Screw terminals, DIN-rail mount. Current lifecycle stage. 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":"48 V","at 60 Hz rated value":"48 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=291836&mlfb=3RT1346-1AH20","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1346-1AH20/alternatives.json"},"ai":{"faq":[{"question":"What is the depth of this contactor?","answer":"The depth is 139 mm. Width is 93 mm, height is 146 mm. These dimensions are for the contactor body without protruding terminals or arc chutes."},{"question":"What solid wire sizes does it accept?","answer":"Solid wire: 2x (0.5... 1.5 mm²), 2x (0.75... 2.5 mm²), max. 2x (0.75... 4 mm²). Stranded: 2x (10... 50 mm²). AWG for main contacts: 2x (10... 1/0)."},{"question":"Will it drop into a panel specified around 3RT1036-1AB00?","answer":"Not without checking the mounting and wiring. The 3RT1346-1AH20 is a size S3 frame with larger terminal capacity (50 mm² stranded vs the smaller S0/S2 frame of the 3RT1036). The DIN-rail footprint may differ, and the lug size for the main conductors is larger. Verify the panel's gland plate clearance and busbar spacing before substituting."},{"question":"What compliance documentation is available?","answer":"The part has a substance prohibitance date of 05/01/2012, indicating RoHS and REACH compliance. Pollution degree is 3. Standard documentation includes the datasheet, CE declaration, and UL/CSA file information. Request these at time of RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1346-1AH20","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/3RT1346-1AH20 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}}