{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2027-2XG40-0LA2","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2027-2XG40-0LA2","canonicalUrl":"https://aoctrl.com/siemens/3RT2027-2XG40-0LA2","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2027-2XG40-0LA2","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS contactor 3RT2027-2XG40-0LA2, S0 frame, 24 VDC coil, spring-type terminals, 45 mm wide, 107 mm deep.","salesMarkdown":"The Siemens SIRIUS 3RT2027-2XG40-0LA2 is a size S0 contactor with a 24 VDC coil and spring-type terminals on the magnet coil, rated for 10 A at 24 VDC and 5 hp at 230 VAC. It mounts on a 35 mm DIN rail per EN 60715 via screw or snap-on, and fits a 45 mm wide, 102 mm high, 107 mm deep footprint. The DC coil drops out with a 30 to 50 ms delay, arcing time is 10 ms. Compared to the 3RT2326-1BK80 (a larger-frame contactor with higher current ratings and different coil voltage), the 3RT2027-2XG40-0LA2 is a compact S0 unit with a 24 VDC coil. The 3RT2326-1BK80 will not drop into the same DIN-rail footprint or panel cutout without re-spacing; the 3RT2027-2XG40-0LA2 is the correct size for S0-based designs. Spring-type terminals on the coil accept 2x (0.5 to 2.5 mm²) stranded or 2x (1 to 10 mm²) solid wire. The main contact terminals follow the same range (1 to 10 mm² solid). The auxiliary switch is integrated. For DC switching, the contactor is rated for 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. Maximum operating frequency: 750 operations per hour for AC-1, AC-2, AC-3, and AC-3e; 250 ops/h for AC-4.","metaTitle":"Siemens 3RT2027-2XG40-0LA2 SIRIUS Contactor, 24 VDC Coil, S0","metaDescription":"Siemens SIRIUS contactor 3RT2027-2XG40-0LA2, 24 VDC coil, S0 size, spring-type terminals. 45 mm wide, 107 mm deep. Rated for 10 A at 24 VDC, 5 hp at 230 V. Active production. Sourc","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"107 mm","Solid":"2x (1 ... 10 mm²)","Width":"45 mm","at DC":"30 ... 50 ms","Height":"102 mm","Upwards":"10 mm","Forwards":"10 mm","Downwards":"10 mm","Arcing Time":"10 ... 10 ms","At The Side":"6 mm","Rated Value":"125 V","Initial Value":"0.7","During Storage":"-55 ... +80 °C","Of Magnet Coil":"Spring-type terminals","Type Of Voltage":"DC","at AC-1 maximum":"750 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":"-40 ... +70 °C","Fastening Method":"screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 60715","Full-Scale Value":"1.25","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":"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 480 V rated value":"27 A","at 500 V rated value":"2 A","at 600 V rated value":"27 A","at 690 V rated value":"1 A","Design Of The Product":"With extended operating range","Instantaneous Contact":"1","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","at AC-2 at AC-3e maximum":"750 1/h","Relative Humidity Minimum":"10 %","at maximum Ith rated value":"10 mm²","Of Main Circuit Rated Value":"6 kV","at AC-3 rated value maximum":"690 V","at maximum AC-1 rated value":"10 mm²","at AC in hot operating state":"8.1 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","Substance Prohibitance (Date)":"10/01/2009","Design Of The Surge Suppressor":"with varistor","at AWG cables for main contacts":"2x (18 ... 8)","Duration Of Locked-Rotor Current":"180 ms","Of Auxiliary Circuit Rated Value":"6 kV","For Auxiliary And Control Circuit":"spring-loaded terminals","Function Module For Communication":"No","Product Function Bus 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":"1.6 W","closing power of magnet coil at DC":"13.2 W","holding power of magnet coil at DC":"1.3 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":"2.7 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","Product Function Short Circuit Protection":"No","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 %","number of NC contacts for auxiliary contacts":"1","number of NO contacts for auxiliary contacts":"1","Type Of Voltage Of The Control Supply Voltage":"DC","up to 40 °C according to IEC 60077 rated value":"50 A","up to 70 °C according to IEC 60077 rated value":"36 A","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 / Q600","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)","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/b6561f4a07265181cdd24113f8ed479f.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=13498&mlfb=3RT2027-2XG40-0LA2","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT2027-2XG40-0LA2/alternatives.json"},"ai":{"faq":[{"question":"Who supplies 3RT2027-2XG40-0LA2 and how is it quoted for volume purchases?","answer":"This part is sourced to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — submit an RFQ for volume pricing."},{"question":"What is the depth of 3RT2027-2XG40-0LA2?","answer":"The listed depth is 107 mm."},{"question":"What solid wire size does the 3RT2027-2XG40-0LA2 accept?","answer":"The terminals accept 2x (1 to 10 mm²) solid wire."},{"question":"Will 3RT2027-2XG40-0LA2 drop into a panel specified around 3RT2326-1BK80 without rewiring?","answer":"No — the 3RT2326-1BK80 is a larger frame size with different mounting footprint and coil voltage. The 3RT2027-2XG40-0LA2 is an S0-size contactor; you would need to re-space the DIN rail and verify the coil supply (24 VDC)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2027-2XG40-0LA2","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/3RT2027-2XG40-0LA2 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}}