{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1373-6AR36","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1373-6AR36","canonicalUrl":"https://aoctrl.com/siemens/3RT1373-6AR36","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1373-6AR36","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS contactor, size S12, 3RT1373-6AR36, 250-500 V AC coil, screw terminals, 180 mm depth, 184 mm width, 225 mm height.","salesMarkdown":"## Siemens SIRIUS 3RT1373-6AR36 — S12 Contactor, 250–500 V AC Coil The contactor measures 225 mm high, 184 mm wide, and 180 mm deep, with screw fixing for vertical mounting surfaces — rotatable ±180° and tiltable ±30° forward/backward when at 0° rotation. ## Coil and Switching Ratings Coil pickup is guaranteed at 0.8x rated voltage; dropout occurs at 1.1x rated. Operating time is 45–80 ms on both AC and DC supplies. Rated operational current varies with voltage: 3 A at 24 V, 1.5 A at 48 V, 0.55 A at 110 V and 125 V, 0.3 A at 220 V, 4 A at 230 V, 3 A at 400 V, 2 A at 500 V, and 2 A at 690 V. The contactor carries two instantaneous auxiliary contacts. Up to two attachable auxiliary switch blocks can be added. The screw-fixing mount and generous clearance specs make panel layout straightforward — keep the forward gap at 20 mm for airflow and wiring access.","metaTitle":"Siemens SIRIUS 3RT1373-6AR36 Contactor, S12, 250-500V AC Coi","metaDescription":"Siemens SIRIUS 3RT1373-6AR36 contactor, size S12, 250-500V AC coil, 180mm depth. Current production lifecycle. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"180 mm","Solid":"1x (1 ... 4mm²), 2x (1 ... 4mm²)","Width":"184 mm","at AC":"45 ... 80 ms","at DC":"45 ... 80 ms","Height":"225 mm","Upwards":"10 mm","Forwards":"20 mm","at 50 Hz":"21 VA","at 60 Hz":"21 VA","Downwards":"10 mm","Attachable":"2","At The Side":"10 mm","Rated Value":"250 ... 500 V","Initial Value":"0.8","During Storage":"-40 ... +70 °C","Of Magnet Coil":"Screw-type terminals","Type Of Voltage":"AC","lifecycle_stage":"current","Auxiliary Switch":"Yes","During Operation":"-40 ... +60 °C","Fastening Method":"screw fixing","Full-Scale Value":"1.1","Mounting Position":"For vertical mounting surface can be rotated +/-180°, and with 0° rotation can be tilted forward or backward +/- 30°, or standing","Size Of Contactor":"S12","Solid Or Stranded":"1x (1 ... 4mm²), 2x (1 ... 4mm²)","Product Brand Name":"SIRIUS","Product Designation":"Contactor","at 24 V rated value":"3 A","at 48 V rated value":"1.5 A","at 110 V rated value":"0.55 A","at 125 V rated value":"0.55 A","at 220 V rated value":"0.3 A","at 230 V rated value":"4 A","at 400 V rated value":"3 A","at 50 Hz rated value":"250 ... 500 V","at 500 V rated value":"2 A","at 60 Hz rated value":"250 ... 500 V","at 690 V rated value":"2 A","Instantaneous Contact":"2","Side-By-Side Mounting":"Yes","For Auxiliary Contacts":"18 ... 14","For Main Current Circuit":"Connection bar","Relative Humidity Minimum":"10 %","Of Main Circuit Rated Value":"8 kV","at AC in hot operating state":"128 W","at AC-3 at 400 V rated value":"132 kW","Substance Prohibitance (Date)":"03/27/2017","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":"gG: 630 A (500 V, 100 kA)","Without Load Current Share Typical":"4.7 W","closing power of magnet coil at DC":"600 W","holding power of magnet coil at DC":"4.7 W","At Contactor For Auxiliary Contacts":"Screw-type terminals","at AC in hot operating state per pole":"32 W","for AWG cables for auxiliary contacts":"1x (AWG 18 ... 14), 2x (AWG 18 ... 14)","number of NO contacts for main contacts":"4","reference code according to IEC 81346-2":"Q","Finely Stranded With Core End Processing":"1x (0.75 ... 2.5 mm²), 2x (0.75 ... 2.5 mm²)","Number Of Poles For Main Current Circuit":"4","Product Function Short Circuit Protection":"No","mirror contact according to IEC 60947-4-1":"Yes","number of NC contacts for auxiliary contacts":"2","number of NO contacts for auxiliary contacts":"2","Type Of Voltage Of The Control Supply Voltage":"AC/DC","contact rating of auxiliary contacts according to UL":"A600 / Q300","Of Main Circuit With Degree Of Pollution 3 Rated Value":"1 000 V","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","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":"240 mm²","Of The Auxiliary And Control Circuit With Degree Of Pollution 3 Rated Value":"690 V"}},"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=1043717&mlfb=3RT1373-6AR36","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1373-6AR36/alternatives.json"},"ai":{"faq":[{"question":"What are the key dimensions of 3RT1373-6AR36?","answer":"Height 225 mm, width 184 mm, depth 180 mm. Minimum clearances: 10 mm up/down/sides, 20 mm forward."},{"question":"What wire sizes does 3RT1373-6AR36 accept?","answer":"It accepts 1x or 2x conductors from 1 to 4 mm², solid or stranded."},{"question":"Where can I buy 3RT1373-6AR36 and how is it quoted?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"Will 3RT1373-6AR36 drop into a panel specified for 3RT1266-6AP36-0KA1?","answer":"Both are SIRIUS contactors, but the 3RT1373-6AR36 is a larger S12 frame versus the smaller frame of the 3RT1266-6AP36-0KA1. Panel cutouts, mounting hole patterns, and clearance requirements differ — verify physical fit before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1373-6AR36","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/3RT1373-6AR36 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}}