{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2027-2AR60","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2027-2AR60","canonicalUrl":"https://aoctrl.com/siemens/3RT2027-2AR60","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2027-2AR60","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, Size S0, 3RT2027-2AR60, 45 mm width, spring-type coil terminals, screw and snap-on mounting to 35 mm DIN rail.","salesMarkdown":"The Siemens 3RT2027-2AR60 is a SIRIUS power contactor in the Size S0 frame — the compact workhorse for switching motor loads in control panels up to around 7.5 kW at 400 V AC-3. The 45 mm width keeps DIN-rail density high in a multi-contactor starter section. For heavier AC-4 duty (plugging, inching, reversing under load) the limit drops to 250 cycles/h, so if your application requires frequent reversing or jogging, factor that into the thermal budget. The AC-1 resistive load rating goes up to 1,000 cycles/h for heater or lighting banks. Auxiliary contact ratings are given per voltage: 10 A at 24 V, 2 A at 48 V and 60 V, 1 A at 110 V, 0.9 A at 125 V, 0.3 A at 220 V, and 3 A at 400 V. The coil itself terminates on spring-type terminals, which speed up panel wiring compared to screw clamps. ## Mounting and Clearance Notes These are the air and arc-blast gaps — respect them for proper arc extinction and to avoid flashover between adjacent contactors in a row. Wire range: solid or stranded 1 to 10 mm² for the main power circuit, and 2x (0.5 to 2.5 mm²) for the auxiliary/coil connections. The spring terminals on the coil accept ferruled stranded as well — strip length per the terminal marking.","metaTitle":"Siemens 3RT2027-2AR60 SIRIUS Power Contactor, Size S0, 45 mm","metaDescription":"Siemens 3RT2027-2AR60 SIRIUS power contactor, Size S0, 45 mm wide. Spring-type coil terminals, DIN-rail mount. Rated for AC-3 duty at 750 cycles/h. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"97 mm","Solid":"1 ... 10 mm²","Width":"45 mm","at AC":"4 ... 16 ms","Height":"102 mm","Upwards":"10 mm","Forwards":"10 mm","Stranded":"1 ... 10 mm²","at 50 Hz":"0.25","at 60 Hz":"0.28","Downwards":"10 mm","Arcing Time":"10 ... 10 ms","At The Side":"6 mm","During Storage":"-55 ... +80 °C","Of Magnet Coil":"Spring-type terminals","at AC-1 maximum":"1 000 1/h","at AC-2 maximum":"750 1/h","at AC-3 maximum":"750 1/h","at AC-4 maximum":"250 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","at AC-3e maximum":"750 1/h","For Main Contacts":"18 ... 8","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":"S0","Solid Or Stranded":"2x (0.5 ... 2.5 mm²)","Product Brand Name":"SIRIUS","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":"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":"5 hp","at 400 V rated value":"3 A","at 440 V rated value":"0.6 A","at 480 V rated value":"27 A","at 50 Hz rated value":"400 V","at 500 V rated value":"2 A","at 60 Hz rated value":"400 ... 440 V","at 600 V rated value":"27 A","at 690 V rated value":"1 A","Side-By-Side Mounting":"Yes","For Auxiliary Contacts":"20 ... 14","For Main Current Circuit":"spring-loaded terminals","at 110/120 V rated value":"2 hp","at 200/208 V rated value":"10 hp","at 220/230 V rated value":"10 hp","at 460/480 V rated value":"20 hp","at 575/600 V rated value":"25 hp","Relative Humidity Minimum":"10 %","Of Main Circuit Rated Value":"6 kV","Safety-Related Switching On":"Yes","at AC-3 rated value maximum":"690 V","at AC in hot operating state":"6.3 W","at AC-2 at 400 V rated value":"15 kW","at AC-3e rated value maximum":"690 V","at AC-4 at 400 V rated value":"22 A","safety-related switching OFF":"Yes","Substance Prohibitance (Date)":"10/01/2009","at AWG cables for main contacts":"2x (18 ... 8)","Of Auxiliary Circuit Rated Value":"6 kV","at AC-5a up to 690 V rated value":"44 A","at AC-5b up to 400 V rated value":"26.5 A","For Auxiliary And Control Circuit":"spring-loaded terminals","Function Module For Communication":"No","With Type Of Assignment 2 Required":"gG: 50A (690V,100kA), aM: 25A (690V, 100kA), BS88: 50A (415V, 80kA)","Without Load Current Share Typical":"10.5 W","At Contactor For Auxiliary Contacts":"Spring-type terminals","With Type Of Coordination 1 Required":"gG: 125A (690V,100kA), aM: 50A (690V,100kA), BS88: 125A (415V,80kA)","at AWG cables for auxiliary contacts":"2x (20 ... 14)","operational current at AC-12 maximum":"10 A","at AC in hot operating state per pole":"2.3 W","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","Contact Reliability Of Auxiliary Contacts":"1 faulty switching per 100 million (17 V, 1 mA)","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)","with high demand rate according to SN 31920":"73 %","Type Of Voltage Of The Control Supply Voltage":"AC","Limited To 1 S Switching At Zero Current Maximum":"499 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 5 S Switching At Zero Current Maximum":"395 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 10 S Switching At Zero Current Maximum":"260 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 30 S Switching At Zero Current Maximum":"186 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 60 S Switching At Zero Current Maximum":"152 A; 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","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":"10 mm²","number of NC contacts for auxiliary contacts instantaneous contact":"1","number of NO contacts for auxiliary contacts instantaneous contact":"1","Of The Contactor With Added Electronically Optimized Auxiliary Switch Block Typical":"5 000 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/653b2a2f7fcd244489233c8dc8a7cd50.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1108716&mlfb=3RT2027-2AR60","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT2027-2AR60/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy the 3RT2027-2AR60 and get a price?","answer":"This part is sourced and quoted to order through independent industrial-automation distribution. Submit an RFQ for current availability and pricing — stock levels and lead times vary by channel and are confirmed at quote time."},{"question":"Will the 3RT2027-2AR60 drop into a panel built for a 3RT2016-1AG62 without rewiring?","answer":"Both are Size S0 contactors on the same 45 mm DIN-rail footprint, so the mechanical fit and rail spacing are identical. The wiring range (solid/stranded 1 to 10 mm²) is the same. The main difference is the coil voltage and auxiliary contact configuration — verify those match your control circuit before swapping."},{"question":"What compliance documentation does Siemens provide for the 3RT2027-2AR60?","answer":"As a standard SIRIUS product, it carries CE marking for the European market and is designed to meet IEC 60947-4-1 for contactors and motor starters. UL/CSA listings are typical for this series, though specific certification markings should be verified against the nameplate on the unit received."},{"question":"What is the depth of the 3RT2027-2AR60?","answer":"The depth is 97 mm, measured from the mounting surface to the front of the housing. This is the standard depth for the Size S0 frame and fits within typical 200 mm deep enclosures."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2027-2AR60","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/3RT2027-2AR60 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}}