{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2027-4AK60","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2027-4AK60","canonicalUrl":"https://aoctrl.com/siemens/3RT2027-4AK60","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2027-4AK60","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, size S0, 3RT2027-4AK60, 480 V AC-3 rated 27 A, 110 VAC 50 Hz / 120 VAC 60 Hz coil, screw and snap-on mounting on 35 mm DIN rail.","salesMarkdown":"## Siemens 3RT2027-4AK60 SIRIUS Power Contactor — S0 Frame, 480 V AC-3 27 A The Siemens 3RT2027-4AK60 is a SIRIUS power contactor in the S0 frame size, rated for 27 A at 480 V in AC-3 duty — the standard motor-switching category per IEC 60947-4-1. That 27 A at 480 V is the rating that governs motor load switching; the contactor also carries a 5 hp rating at 230 V. The coil is 110 VAC at 50 Hz, 120 VAC at 60 Hz. Switching frequency: up to 1000 cycles/hour at AC-1, 750 at AC-2/AC-3/AC-3e, and 250 at AC-4. Arcing time is 10 ms. ## Auxiliary Contact Ratings and Coil Connection Its rated currents vary by 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, 3 A at 400 V, 0.6 A at 440 V, 2 A at 500 V. The magnet coil connection uses a ring cable lug.","metaTitle":"Siemens 3RT2027-4AK60 SIRIUS Power Contactor, 480 V 27 A AC-","metaDescription":"Siemens 3RT2027-4AK60 SIRIUS S0 power contactor. 480 V AC-3 rated 27 A, 110 VAC 50 Hz / 120 VAC 60 Hz coil. Screw and snap-on DIN rail mount. Current production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"97 mm","Width":"45 mm","at AC":"4 ... 16 ms","Height":"85 mm","Upwards":"10 mm","Forwards":"10 mm","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":"Ring cable lug connection","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 DIN rail according to DIN EN 60715","at AC-3e maximum":"750 1/h","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","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":"110 V","at 500 V rated value":"2 A","at 60 Hz rated value":"120 V","at 600 V rated value":"27 A","at 690 V rated value":"1 A","Side-By-Side Mounting":"Yes","For Main Current Circuit":"Ring cable lug connection","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","at AC-3 rated value maximum":"690 V","at AC in hot operating state":"6.3 W","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","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":"ring terminal lug connection","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":"Ring cable lug connection","With Type Of Coordination 1 Required":"gG: 125A (690V,100kA), aM: 50A (690V,100kA), BS88: 125A (415V,80kA)","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","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 %","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":"341 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":"199 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 60 S Switching At Zero Current Maximum":"162 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/f43c009b0f87138e9020cc0c1f9022a9.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=340334&mlfb=3RT2027-4AK60","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT2027-4AK60/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3RT2027-4AK60?","answer":"Submit an RFQ through this listing. Availability and current pricing are confirmed at quote time through independent distribution channels."},{"question":"What is 3RT2027-4AK60's listed depth (97 mm) on this component line?","answer":"The depth is 97 mm."},{"question":"What is 3RT2027-4AK60's listed width (45 mm) on this component line?","answer":"The width is 45 mm."},{"question":"Will 3RT2027-4AK60 drop into a panel that was specified around 3RT2015-4AP62 without rewiring?","answer":"Both are SIRIUS S0 frame contactors with the same DIN rail mounting and similar dimensions, so the footprint and rail clip are compatible. However, verify the coil voltage and auxiliary contact configuration against your panel wiring — the 3RT2027-4AK60 uses a 110 VAC 50 Hz / 120 VAC 60 Hz coil and includes an auxiliary switch."},{"question":"What compliance documentation does this brand provide for 3RT2027-4AK60 (RoHS, REACH, UL, IEC)?","answer":"As a Siemens SIRIUS product, the 3RT2027-4AK60 is designed to meet IEC 60947-4-1 for contactors. Compliance declarations (RoHS, REACH, UL) are typically available from Siemens directly or through the distributor upon request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2027-4AK60","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/3RT2027-4AK60 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}}