{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2018-2XB41-0LA2","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2018-2XB41-0LA2","canonicalUrl":"https://aoctrl.com/siemens/3RT2018-2XB41-0LA2","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2018-2XB41-0LA2","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS, power contactor, 3RT2018-2XB41-0LA2, size S00, DC coil 24-34 V, spring-type terminals, 45 mm width, 73 mm depth, 70 mm height.","salesMarkdown":"It switches main contacts rated 20-12 A and includes an auxiliary switch. The spring-type coil terminals accept solid conductors: 2x (0.5-1.5 mm²), 2x (0.75-2.5 mm²), and 2x 4 mm². ## DC switching capacity — what the ratings mean The DC coil draws a 2.3 A inrush peak and holds at 24-34 V. Switching capacity varies by voltage: 10 A at 24 V, 2 A at 48 V, 2 A at 60 V, 1 A at 110 V, 0.9 A at 125 V, 0.3 A at 220 V, 3 A at 400 V, 0.2 A at 440 V, 14 A at 480 V, and 2 A at 500 V (-). The 14 A at 480 V is the highest DC rating — that's the figure to size against for 480 VDC loads. At 24 VDC, the 10 A rating covers most control-circuit and small-motor applications. ## Panel integration and clearances The 45 mm wide, 70 mm tall, 73 mm deep footprint fits standard DIN-rail enclosures.","metaTitle":"Siemens 3RT2018-2XB41-0LA2 SIRIUS Power Contactor, S00, DC C","metaDescription":"Siemens SIRIUS 3RT2018-2XB41-0LA2 power contactor, size S00, DC coil 24-34 V, spring-type terminals, 45 mm wide. Current lifecycle stage. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"73 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), 2x 4 mm²","Width":"45 mm","at DC":"25 ... 45 ms","Height":"70 mm","Upwards":"10 mm","Forwards":"10 mm","Downwards":"10 mm","Arcing Time":"10 ... 15 ms","At The Side":"6 mm","Rated Value":"24 ... 34 V","Initial Value":"0.7","During Storage":"-55 ... +80 °C","Of Magnet Coil":"Spring-type terminals","Type Of Voltage":"DC","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 DIN rail according to DIN EN 50022","Full-Scale Value":"1.25","For Main Contacts":"20 ... 12","Mounting Position":"+/-180° rotation possible on vertical mounting surface, can be tilted forward and backward by +/- 22.5° on vertical mounting surface, standing, on horizontal mounting surface","Size Of Contactor":"S00","Solid Or Stranded":"2x (0,5 ... 4 mm²)","Product Brand Name":"SIRIUS","Inrush Current Peak":"2.3 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":"30 000 000","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":"2 hp","at 400 V rated value":"3 A","at 440 V rated value":"0.2 A","at 480 V rated value":"14 A","at 500 V rated value":"2 A","at 600 V rated value":"11 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 ... 12","For Main Current Circuit":"spring-loaded terminals","at 110/120 V rated value":"1 hp","at 200/208 V rated value":"3 hp","at 220/230 V rated value":"5 hp","at 460/480 V rated value":"10 hp","at 575/600 V rated value":"10 hp","at AC-2 at AC-3e maximum":"750 1/h","Locked-Rotor Current Peak":"0.18 A","Relative Humidity Minimum":"10 %","Holding Current Mean Value":"40 mA","at maximum Ith rated value":"4 mm²","Of Main Circuit Rated Value":"6 kV","at AC-3 rated value maximum":"690 V","at maximum AC-1 rated value":"4 mm²","at AC in hot operating state":"6.6 W","at AC-2 at 400 V rated value":"7.5 kW","at AC-3e rated value maximum":"690 V","at AC-4 at 400 V rated value":"11.5 A","Substance Prohibitance (Date)":"10/01/2009","Design Of The Surge Suppressor":"with varistor","Duration Of Inrush Current Peak":"50 µs","Locked-Rotor Current Mean Value":"0.18 A","Duration Of Locked-Rotor Current":"250 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 NH 3NA, DIAZED 5SB, NEOZED 5SE: 20 A","Without Load Current Share Typical":"0.7 W","closing power of magnet coil at DC":"4 W","holding power of magnet coil at DC":"0.95 W","At Contactor For Auxiliary Contacts":"Spring-type terminals","With Type Of Coordination 1 Required":"gG NH 3NA, DIAZED 5SB, NEOZED 5SE: 35 A","operational current at AC-12 maximum":"10 A","at AC in hot operating state per pole":"2.2 W","for AWG cables for auxiliary contacts":"2x (20 ... 12)","number of NC contacts for main contacts":"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 ... 2.5 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 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":"22 A","up to 70 °C according to IEC 60077 rated value":"18 A","Limited To 1 S Switching At Zero Current Maximum":"300 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 5 S Switching At Zero Current Maximum":"169 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 10 S Switching At Zero Current Maximum":"128 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 30 S Switching At Zero Current Maximum":"92 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 60 S Switching At Zero Current Maximum":"74 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/29448a6d4e578aecc47ee277b3bfc7cf.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=765440&mlfb=3RT2018-2XB41-0LA2","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT2018-2XB41-0LA2/alternatives.json"},"ai":{"faq":[{"question":"What compliance documentation is available for 3RT2018-2XB41-0LA2?","answer":"As a Siemens SIRIUS product, it typically carries CE, UL, CSA, and RoHS/REACH declarations. Specific certification markings should be verified against the nameplate and manufacturer declarations for your region."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2018-2XB41-0LA2","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/3RT2018-2XB41-0LA2 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}}