{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2027-4AR60","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2027-4AR60","canonicalUrl":"https://aoctrl.com/siemens/3RT2027-4AR60","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2027-4AR60","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS S0 power contactor, 3RT2027-4AR60, 45 mm wide, 97 mm deep, rated 27 A at 480 V, screw and snap-on mounting.","salesMarkdown":"## SIRIUS S0 Power Contactor — 3RT2027-4AR60 The Siemens 3RT2027-4AR60 is a SIRIUS S0 power contactor, 45 mm wide and 97 mm deep, built for screw and snap-on mounting onto 35 mm DIN rail per DIN EN 60715. The S0 frame size fits standard panel layouts with a 45 mm width slot — no extra DIN rail space needed beyond that. Operating range covers -25 to +60 °C, so it handles warm cabinet environments without derating concerns at the top end. Switching frequency maxes at 750 1/h under AC-3 and AC-2, and 1 000 1/h under AC-1 resistive loads — enough for conveyor start-stop cycles or pump control without overheating the coil. DIN-rail snap-on plus screw fastening gives you a choice: clip it on or bolt it down. Clearance around the contactor is 10 mm upward, forward, and downward, with 6 mm at the sides. That 6 mm side gap is tight — adjacent devices on the same rail need that spacing for arc flash and heat dissipation. ## Auxiliary & Coil Connections An auxiliary switch is built in, and the magnet coil terminates via ring cable lug connection — that means you need ring terminals on the control wiring, not just ferrules. The auxiliary contact ratings span from 10 A at 24 V down to 0.3 A at 220 V and 0.6 A at 440 V, covering standard PLC output signals and relay logic.","metaTitle":"Siemens 3RT2027-4AR60 SIRIUS Power Contactor, S0, 45 mm, 27","metaDescription":"Siemens 3RT2027-4AR60 SIRIUS S0 power contactor, 45 mm wide, 97 mm deep. Rated 27 A at 480 V. Current lifecycle. Screw & snap-on 35 mm DIN rail. Order to RFQ.","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":"400 V","at 500 V rated value":"2 A","at 60 Hz rated value":"440 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":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=297601&mlfb=3RT2027-4AR60","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT2027-4AR60/alternatives.json"},"ai":{"faq":[{"question":"What is the width and depth of 3RT2027-4AR60?","answer":"Width is 45 mm, depth is 97 mm, height is 85 mm."},{"question":"What is the motor rating at 480 V for 3RT2027-4AR60?","answer":"Rated 27 A at 480 V, suitable for AC-3 motor switching duty."},{"question":"How is the coil connected on 3RT2027-4AR60?","answer":"The magnet coil uses ring cable lug connection, so plan for ring terminals on the control wiring."},{"question":"Where can I buy 3RT2027-4AR60 and how is it quoted?","answer":"Sourced and quoted to order against an RFQ through independent distribution, with availability and current pricing confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2027-4AR60","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/3RT2027-4AR60 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}}