{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1375-6AF36","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1375-6AF36","canonicalUrl":"https://aoctrl.com/siemens/3RT1375-6AF36","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1375-6AF36","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT1375-6AF36 contactor, Size S12, AC coil 48-130 V 50/60 Hz, screw-type coil terminals, 3-pole, auxiliary switch included.","salesMarkdown":"## SIRIUS S12 contactor with AC coil The 3RT1375-6AF36: It's a current-production part, so you're not chasing NOS or surplus for a new build. ## Coil voltage and what it means for the panel The pickup voltage threshold is 0.8x rated (dropout at 0.55x), so on a nominal 110 VAC control bus it picks up reliably down to about 88 V, which gives you some headroom on a sagging line. That's standard for a contactor this size — no special ferrules needed, but torque to the spec on the nameplate. ## Physical fit and mounting constraints The S12 frame measures 184 mm wide, 225 mm tall, and 180 mm deep. Mounting is by screw fixing, not DIN rail — plan for a drilled backplate or panel. These are minimums for heat dissipation and arc clearance — don't crowd it against the enclosure wall or other heat-generating devices. ## Auxiliary contacts and switching capability The contactor ships with an integrated auxiliary switch block (2 instantaneous contacts, NO/NC configurable). It can accept up to 2 attachable auxiliary switch blocks total, so you can add more feedback to a PLC or safety relay without an external terminal block. The 4 A at 230 V rating is the highest — likely the resistive load rating for that voltage class. ## Environmental and switching performance Switching times are 45-80 ms for both AC and DC operation — consistent, not fast enough for high-speed cycling but fine for motor starting and general switching.","metaTitle":"Siemens 3RT1375-6AF36 SIRIUS Contactor, AC Coil 48-130V","metaDescription":"Siemens 3RT1375-6AF36 SIRIUS contactor, S12 frame, AC coil 48-130 V 50/60 Hz, screw terminals. Current production. 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":"17 VA","at 60 Hz":"17 VA","Downwards":"10 mm","Attachable":"2","At The Side":"10 mm","Rated Value":"48 ... 130 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":"48 ... 130 V","at 500 V rated value":"2 A","at 60 Hz rated value":"48 ... 130 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":"288 W","at AC-3 at 400 V rated value":"200 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":"2.5 W","closing power of magnet coil at DC":"360 W","holding power of magnet coil at DC":"2.5 W","At Contactor For Auxiliary Contacts":"Screw-type terminals","at AC in hot operating state per pole":"72 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":"370 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/b198ee8e5467487f7cd5eecfa5b4c6f7.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1043723&mlfb=3RT1375-6AF36","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1375-6AF36/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1375-6AF36","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/3RT1375-6AF36 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}}