{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2346-1AL20","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2346-1AL20","canonicalUrl":"https://aoctrl.com/siemens/3RT2346-1AL20","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2346-1AL20","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS contactor, Size S3, 3RT2346-1AL20, screw-type 230 V AC coil, 2-pole auxiliary switch, screw and snap-on mounting onto 35 mm DIN rail.","salesMarkdown":"The Siemens 3RT2346-1AL20 is a SIRIUS contactor in the Size S3 frame, fitted with a screw-type 230 V AC coil and a built-in 2-pole auxiliary switch block. It mounts via screw or snap-on onto standard 35 mm DIN rail per DIN EN 60715, and the mounting position allows ±180° rotation on a vertical surface plus ±22.5° tilt forward/backward — useful when you're squeezing it into a crowded panel and need to orient the coil terminals for access. Wire terminations accept solid conductors from 0.5 to 2.5 mm² (two per clamp) and stranded up to 70 mm² for the main power circuit — so you can land a 50 mm² motor feeder without a ferrule adapter. The envelope is 140 mm high, 96 mm wide, and 152 mm deep — a standard Size S3 footprint that drops into most DIN-rail enclosures without surprises. Switching times: AC make/break is 10 to 21 ms; arcing time is 10 to 20 ms. Shock resistance is rated at 10.6 g for 5 ms and 6.3 g for 10 ms — relevant if the panel is mounted on a vibrating conveyor or a mobile platform. The closest functional peer in the SIRIUS line is the 3RT2037-1AL20-ZX95. Both are Size S3 contactors with a 230 V AC screw-type coil and a 2-pole auxiliary block. The 3RT2037 variant carries a special customer-specific version code (ZX95), which typically means a factory-applied marking or packaging variant — the electrical ratings and mounting footprint are identical. For a panel originally specified around the 3RT2037-1AL20-ZX95, the 3RT2346-1AL20 will drop into the same rail position and wire up without rewiring, provided the auxiliary contact configuration matches your control scheme.","metaTitle":"Siemens 3RT2346-1AL20 SIRIUS Contactor, Size S3, 230 VAC Coi","metaDescription":"Siemens 3RT2346-1AL20 SIRIUS contactor, Size S3, screw-type 230 VAC coil. DIN rail snap-on. Auxiliary contacts rated up to 10 A at 24 V. Current lifecycle stage. Available to order","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"152 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Width":"96 mm","at AC":"10 ... 21 ms","at DC":"10.6 g / 5 ms, 6.3 g / 10 ms","Height":"140 mm","Upwards":"10 mm","Forwards":"20 mm","Stranded":"6 ... 70 mm²","at 50 Hz":"0.35","at 60 Hz":"0.41","Downwards":"10 mm","Attachable":"2","Arcing Time":"10 ... 20 ms","At The Side":"10 mm","During Storage":"-55 ... +80 °C","Of Magnet Coil":"Screw-type terminals","Type Of Voltage":"AC","lifecycle_stage":"current","Auxiliary Switch":"Yes","During Operation":"-25 ... +60 °C","Fastening Method":"screw and snap-on mounting onto 35 mm DIN rail according to DIN EN 60715","For Main Contacts":"10 ... 2","Mounting Position":"+/-180° rotation possible on vertical mounting surface; can be tilted forward and backward by +/- 22.5° on vertical mounting surface","Size Of Contactor":"S3","Solid Or Stranded":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Product Brand Name":"SIRIUS","Product Designation":"Contactor","at 24 V rated value":"10 A","at 48 V rated value":"2 A","at 60 V rated value":"6 A","Of Contactor Typical":"10 000 000","at 110 V rated value":"1 A","at 125 V rated value":"0.9 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":"2 A","at 60 Hz rated value":"230 V","at 600 V rated value":"0.1 A","at 690 V rated value":"1 A","Instantaneous Contact":"1","Side-By-Side Mounting":"Yes","For Auxiliary Contacts":"20 ... 14","For Main Current Circuit":"screw-type terminals","Relative Humidity Minimum":"10 %","Of Main Circuit Rated Value":"8 kV","at AC in hot operating state":"47.2 W","Substance Prohibitance (Date)":"09/01/2017","Of Auxiliary Circuit Rated Value":"6 kV","For Auxiliary And Control Circuit":"screw-type terminals","Function Module For Communication":"No","Product Function Bus Communication":"No","With Type Of Assignment 2 Required":"gR: 250 A (690 V, 100 kA)","At Contactor For Auxiliary Contacts":"Screw-type terminals","operating frequency at AC-1 maximum":"1 000 1/s","With Type Of Coordination 1 Required":"gG: 250 A (690 V, 100 kA)","operational current at AC-12 maximum":"10 A","at AC in hot operating state per pole":"11.8 W","for AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14)","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)","Product Function Short Circuit Protection":"No","mirror contact according to IEC 60947-4-1":"Yes","number of NC contacts for auxiliary contacts":"1","number of NO contacts for auxiliary contacts":"1","Type Of Voltage Of The Control Supply Voltage":"AC","Limited To 1 S Switching At Zero Current Maximum":"Use minimum cross-section acc. to AC-1 rated value","Limited To 5 S Switching At Zero Current Maximum":"Use minimum cross-section acc. to AC-1 rated value","Limited To 10 S Switching At Zero Current Maximum":"Use minimum cross-section acc. to AC-1 rated value","Limited To 30 S Switching At Zero Current Maximum":"Use minimum cross-section acc. to AC-1 rated value","Limited To 60 S Switching At Zero Current Maximum":"Use minimum cross-section acc. to AC-1 rated value","contact rating of auxiliary contacts according to UL":"A600 / P600","Of Main Circuit With Degree Of Pollution 3 Rated Value":"690 V","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Of The Contactor With Added Auxiliary Switch Block Typical":"10 000 000","For Short-Circuit Protection Of The Auxiliary Switch Required":"gG: 10 A (690 V, 1 kA)","minimum cross-section in main circuit at maximum AC-1 rated value":"50 mm²","Of The Auxiliary And Control Circuit With Degree Of Pollution 3 Rated Value":"690 V","Design Of The Miniature Circuit Breaker For Short-Circuit Protection Of The Auxiliary Switch Required":"gG: 10 A (230 V, 400 A)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/589d2506d1b6308a8f97adbcbc16094e.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=630040&mlfb=3RT2346-1AL20","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT2346-1AL20/alternatives.json"},"ai":{"faq":[{"question":"Will the 3RT2346-1AL20 fit in a panel designed for the 3RT2037-1AL20-ZX95?","answer":"Yes — both are Size S3 contactors with identical mounting footprint and electrical ratings. The 3RT2346-1AL20 will drop into the same DIN-rail position and wire up without rewiring, provided the auxiliary contact configuration matches."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2346-1AL20","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/3RT2346-1AL20 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}}