{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1374-6AP36","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1374-6AP36","canonicalUrl":"https://aoctrl.com/siemens/3RT1374-6AP36","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1374-6AP36","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS, contactor, Size S12, 3RT1374-6AP36, 100-250 V AC coil, screw-type terminals, 225 x 184 x 180 mm.","salesMarkdown":"It carries a 100-250 V AC coil and uses screw-type terminals on both the coil and main circuit. Rated operational currents are 4 A at 230 V, 3 A at 400 V, and 2 A at 690 V — figures that govern the real load it can handle, not a single headline number. The contactor includes two built-in auxiliary contacts (instantaneous, NO/NC configurable) and can accept up to two additional attachable auxiliary contact blocks. Mounting is via screw fixing to a vertical surface; the enclosure can be rotated ±180° and tilted forward or backward ±30° at 0° rotation. ## Auxiliary contact ratings — the detail that matters for control circuits The auxiliary contacts are rated for 3 A at 24 V, 1.5 A at 48 V, 0.55 A at 110/125 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. These are the switching limits for the control side — important when the contactor feeds a PLC input or a pilot relay. The 4 A at 230 V rating is the highest auxiliary figure; the 0.3 A at 220 V is the lowest, so verify your control voltage against the table. The S12 frame measures 225 mm high, 184 mm wide, and 180 mm deep. Wire range for solid or stranded conductors is 1x (1-4 mm²) or 2x (1-4 mm²) per terminal. The screw-type coil terminals accept the same wire sizes.","metaTitle":"Siemens 3RT1374-6AP36 SIRIUS Contactor, Size S12, 100-250 V","metaDescription":"Siemens 3RT1374-6AP36 SIRIUS contactor, Size S12, 225x184x180 mm. Screw terminals, 2 NO/NC aux contacts, 4 A at 230 V. Active production, sourced to order. Request 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":"17.5 VA","at 60 Hz":"17.5 VA","Downwards":"10 mm","Attachable":"2","At The Side":"10 mm","Rated Value":"100 ... 250 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":"100 ... 250 V","at 500 V rated value":"2 A","at 60 Hz rated value":"100 ... 250 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, broadened > 450A required","Relative Humidity Minimum":"10 %","Of Main Circuit Rated Value":"8 kV","at AC in hot operating state":"200 W","at AC-3 at 400 V rated value":"160 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":"4.5 W","closing power of magnet coil at DC":"410 W","holding power of magnet coil at DC":"4.5 W","At Contactor For Auxiliary Contacts":"Screw-type terminals","at AC in hot operating state per pole":"50 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":"300 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":"https://cdn.aoctrl.com/d185f2a5699a29100ed51ced41e4b85f.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1043720&mlfb=3RT1374-6AP36","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1374-6AP36/alternatives.json"},"ai":{"faq":[{"question":"What is the coil voltage for 3RT1374-6AP36?","answer":"The coil is rated for 100-250 V AC at both 50 Hz and 60 Hz, with a nominal power draw of 17.5 VA at either frequency. The pickup threshold is 0.8 x rated value and the dropout is 1.1 x full-scale value."},{"question":"What are the auxiliary contact ratings?","answer":"The two built-in auxiliary contacts are rated 4 A at 230 V, 3 A at 400 V, 2 A at 690 V, 3 A at 24 V, 1.5 A at 48 V, 0.55 A at 110/125 V, 0.3 A at 220 V, and 2 A at 500 V. Always match the control voltage to the appropriate row in that table."},{"question":"Where can I buy 3RT1374-6AP36?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."},{"question":"What is the physical size of 3RT1374-6AP36?","answer":"The Size S12 frame is 225 mm high, 184 mm wide, and 180 mm deep. It mounts via screw fixing with 10 mm clearance above, below, and to the sides, and 20 mm forward clearance."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1374-6AP36","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/3RT1374-6AP36 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}}