{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2037-3SF30","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2037-3SF30","canonicalUrl":"https://aoctrl.com/siemens/3RT2037-3SF30","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2037-3SF30","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT2037-3SF30 power contactor, S2 frame size, spring-type coil terminals, AC-3 duty, 55 mm width, 114 mm height, 130 mm depth.","salesMarkdown":"The 3RT2037-3SF30: It carries an MTBF of 52 years, which for a contactor in continuous industrial service translates to a mean time between failures that comfortably exceeds typical panel overhaul intervals — provided the coil supply and load current stay within the rated envelope. The coil termination uses spring-type terminals, which means no screw-torque check during commissioning — the wire is pushed in and the cage holds it. The coil rated control supply voltage is 83 to 150 V AC/DC, with an inrush current peak of 25 A. At 50 Hz the holding power is 2 VA; at 60 Hz it is also 2 VA. The pickup and dropout times are 30 to 55 ms for both AC and DC — consistent enough for sequential start logic where interlocking depends on predictable contactor closure delays. The main contactor has an auxiliary switch built in, and the number of auxiliary contacts for the main contacts is configurable from 18 down to 1.","metaTitle":"Siemens 3RT2037-3SF30 SIRIUS Power Contactor, S2 Size, AC-3","metaDescription":"Siemens 3RT2037-3SF30 SIRIUS power contactor, S2 frame, AC-3 rated. MTBF 52 y. Spring-type coil terminals. Current lifecycle stage.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"MTBF":"52 y","Depth":"130 mm","Width":"55 mm","at AC":"30 ... 55 ms","at DC":"30 ... 55 ms","title":"3RT2037-3SF30","Height":"114 mm","Upwards":"10 mm","Forwards":"10 mm","at 50 Hz":"2 VA","at 60 Hz":"2 VA","Downwards":"10 mm","Arcing Time":"10 ... 20 ms","At The Side":"6 mm","Rated Value":"83 ... 150 V","description":"power contactor, AC-3e/AC-3, 65 A, 30 kW / 400 V, 3-pole, 83-150 V AC/DC, 50/60 Hz, with integrated varistor, auxiliary contacts: 1 NC, main circuit: screw terminal, control and auxiliary circuit: spring-loaded terminal, size: S2, F-PLC-IN","Initial Value":"0.8","During Storage":"-55 ... +80 °C","Of Magnet Coil":"Spring-type terminals","at AC-1 maximum":"800 1/h","at AC-2 maximum":"400 1/h","at AC-3 maximum":"700 1/h","at AC-4 maximum":"200 1/h","lifecycle_stage":"current","Auxiliary Switch":"Yes","During Operation":"-25 ... +60 °C","Fastening Method":"screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 60715","Full-Scale Value":"1.1","at AC-3e maximum":"700 1/h","For Main Contacts":"18 ... 1","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":"S2","Solid Or Stranded":"2x (0.5 ... 2.5 mm²)","Product Brand Name":"SIRIUS","Inrush Current Peak":"25 A","Product Designation":"Power contactor","at 24 V rated value":"10 A","at 48 V rated value":"2 A","at 60 V rated value":"2 A","Of Contactor Typical":"5 000 000","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":"10 hp","at 400 V rated value":"3 A","at 440 V rated value":"0.6 A","at 480 V rated value":"65 A","at 50 Hz rated value":"83 ... 150 V","at 500 V rated value":"2 A","at 60 Hz rated value":"83 ... 150 V","at 600 V rated value":"52 A","at 690 V rated value":"1 A","Side-By-Side Mounting":"Yes","For Auxiliary Contacts":"20 ... 14","For Main Current Circuit":"screw-type terminals","at 110/120 V rated value":"5 hp","at 200/208 V rated value":"20 hp","at 220/230 V rated value":"20 hp","at 460/480 V rated value":"50 hp","at 575/600 V rated value":"50 hp","Locked-Rotor Current Peak":"0.8 A","Relative Humidity Minimum":"10 %","Holding Current Mean Value":"0.015 A","Of Main Circuit Rated Value":"6 kV","Safe failure fraction (SFF)":"96 %","Safety-Related Switching On":"No","at AC-3 rated value maximum":"690 V","at AC in hot operating state":"11.4 W","at AC-2 at 400 V rated value":"30 kW","at AC-3e rated value maximum":"690 V","at AC-4 at 400 V rated value":"55 A","safety-related switching OFF":"Yes","Substance Prohibitance (Date)":"01/29/2021","Design Of The Surge Suppressor":"with varistor","Duration Of Inrush Current Peak":"10 µs","Locked-Rotor Current Mean Value":"0.34 A","at AWG cables for main contacts":"2x (18 ... 2), 1x (18 ... 1)","Duration Of Locked-Rotor Current":"230 ms","Of Auxiliary Circuit Rated Value":"6 kV","at AC-5a up to 690 V rated value":"70.4 A","at AC-5b up to 400 V rated value":"53.9 A","For Auxiliary And Control Circuit":"spring-loaded terminals","Function Module For Communication":"No","With Type Of Assignment 2 Required":"gG: 125A (690V,100kA), aM: 63A (690V,100kA), BS88: 100A (415V,80kA)","Without Load Current Share Typical":"2 W","closing power of magnet coil at DC":"40 W","holding power of magnet coil at DC":"1.6 W","At Contactor For Auxiliary Contacts":"Spring-type terminals","With Type Of Coordination 1 Required":"gG: 250 A (690 V, 100 kA), aM: 160 A (690 V, 100 kA), BS88: 200 A (415 V, 80 kA)","at AWG cables for auxiliary contacts":"2x (20 ... 14)","category according to EN ISO 13849-1":"2","operational current at AC-12 maximum":"10 A","at AC in hot operating state per pole":"3.8 W","stop category according to EN 60204-1":"0","number of NO contacts for main contacts":"3","reference code according to IEC 81346-2":"Q","Finely Stranded With Core End Processing":"2x (0.5 ... 1.5 mm²)","Number Of Poles For Main Current Circuit":"3","voltage at PLC-control input rated value":"24 V","Contact Reliability Of Auxiliary Contacts":"1 faulty switching per 100 million (17 V, 1 mA)","Recovery Time After Power Failure Typical":"2.1 s","mirror contact according to IEC 60947-4-1":"Yes","with low demand rate according to SN 31920":"40 %","Finely Stranded Without Core End Processing":"2x (0.5 ... 2.5 mm²)","safety device type according to IEC 61508-2":"Type B","with high demand rate according to SN 31920":"73 %","Type Of Voltage Of The Control Supply Voltage":"AC/DC","hardware fault tolerance according to IEC 61508":"0","Limited To 1 S Switching At Zero Current Maximum":"1 055 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 5 S Switching At Zero Current Maximum":"730 A; Use minimum cross-section acc. to AC-1 rated value","PFHD with high demand rate according to EN 62061":"0.000000077 1/h","Limited To 10 S Switching At Zero Current Maximum":"520 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 30 S Switching At Zero Current Maximum":"336 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 60 S Switching At Zero Current Maximum":"272 A; Use minimum cross-section acc. to AC-1 rated value","SIL Claim Limit (subsystem) according to EN 62061":"2","PFDavg with low demand rate according to IEC 61508":"0.0067","performance level (PL) according to EN ISO 13849-1":"c","type of PLC-control input according to IEC 60947-1":"Type 1","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":"5 000 000","operating range factor of the voltage at PLC-control input":"0.8 ... 1.1","Diagnostics Test Interval By Internal Test Function Maximum":"28 800 s","Of Auxiliary Circuit With Degree Of Pollution 3 Rated Value":"690 V","For Short-Circuit Protection Of The Auxiliary Switch Required":"gG: 10 A (500 V, 1 kA)","minimum cross-section in main circuit at maximum AC-1 rated value":"25 mm²","number of NC contacts for auxiliary contacts instantaneous contact":"1","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,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/aa015e796cce9414eb28b4b9d57aab05.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1413430&mlfb=3RT2037-3SF30"},"ai":{"faq":[{"question":"What is the MTBF of the 3RT2037-3SF30?","answer":"The listed MTBF is 52 years. This is a reliability metric that indicates the mean time between failures under specified operating conditions — useful for maintenance planning and system availability calculations."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2037-3SF30","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/3RT2037-3SF30 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:47:38.189Z","lastPublished":"2026-07-22T19:47:38.189Z","indexable":true}}