{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1034-1AL24","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1034-1AL24","canonicalUrl":"https://aoctrl.com/siemens/3RT1034-1AL24","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1034-1AL24","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS S2 power contactor, 3RT1034-1AL24, 55 mm wide, screw terminals, 18.5 kW at 500V AC-3, 10 kW at 690V AC-3.","salesMarkdown":"The Siemens 3RT1034-1AL24 is a SIRIUS S2-frame power contactor rated for motor switching up to 18.5 kW at 500 V AC-3 duty and 10 kW at 690 V AC-3, making it a fit for 400 V to 690 V three-phase motor loads in industrial control panels. Its AC-2 rating of 15 kW at 400 V covers slip-ring motor or high-inertia starts where the inrush extends beyond the AC-3 window. The headline AC-3 rating of 18.5 kW at 500 V tells you the contactor can handle a standard three-phase squirrel-cage induction motor of that power through normal starting and running — that's the common duty for pumps, fans, and conveyors. The 10 kW at 690 V rating extends its reach into higher-voltage installations common in mining or marine applications. The AC-4 rating at 400 V (not fully listed in the excerpt) would govern plugging or inching duty; the 250 cycles/hour maximum at AC-4 sets the thermal limit for reversing or jogging applications. Side-by-side mounting is permitted, which saves rail space in multi-contactor assemblies like star-delta starters. Operating temperature spans -25 °C to +60 °C, with storage from -55 °C to +80 °C. At 55 mm wide and 112 mm tall, the S2 frame fits standard 35 mm DIN rail with snap-on mounting. Depth of 164 mm accounts for the screw terminals and arc chamber — verify clearance to the gland plate or enclosure door. The screw terminals accept solid conductors up to 2x 4 mm² and stranded up to 2x 25 mm², covering most motor circuit wiring up to the rated current. Coil operating range is 0.8 to 1.1 times rated voltage at 50 Hz and 0.85 to 1.1 at 60 Hz. Arcing time of 10 to 15 ms and AC operating time of 7 to 20 ms are typical for this contactor class.","metaTitle":"Siemens 3RT1034-1AL24 SIRIUS Power Contactor","metaDescription":"Siemens 3RT1034-1AL24 SIRIUS S2 power contactor, 18.5 kW at 500V, 10 kW at 690V. Screw terminals, 55 mm wide, DIN rail mount. Sourced to order. Request a quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"164 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), max. 2x (0.75 ... 4 mm²)","Width":"55 mm","at AC":"7 ... 20 ms","Height":"112 mm","Stranded":"2x (0.75 ... 25 mm²)","at 50 Hz":"0.8 ... 1.1","at 60 Hz":"0.85 ... 1.1","Arcing Time":"10 ... 15 ms","On The Front":"IP20","1 Rated Value":"50 Hz","2 Rated Value":"60 Hz","During Storage":"-55 ... +80 °C","Of The Terminal":"IP00","at AC-1 maximum":"1 200 1/h","at AC-2 maximum":"750 1/h","at AC-3 maximum":"1 000 1/h","at AC-4 maximum":"250 1/h","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Fastening Method":"screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022","Size Of Contactor":"S2","Solid Or Stranded":"2x (0.75 ... 16 mm²)","Product Brand Name":"SIRIUS","Degree Of Pollution":"3","Product Designation":"power contactor","at 24 V rated value":"10 A","at 60 V rated value":"2 A","Of Contactor Typical":"10 000 000","at 110 V rated value":"1 A","at 220 V rated value":"0.3 A","at 230 V rated value":"6 A","at 400 V rated value":"3 A","at 50 Hz rated value":"230 V","at 500 V rated value":"18.5 kW","at 60 Hz rated value":"230 V","at 690 V rated value":"10 kW","Side-By-Side Mounting":"Yes","For Main Current Circuit":"screw-type terminals","at AC-2 at 400 V rated value":"15 kW","at AC-4 at 400 V rated value":"29 A","Substance Prohibitance (Date)":"05/01/2012","at 40 °C minimum permissible":"16 mm²","at 60 °C minimum permissible":"10 mm²","Insulation Voltage Rated Value":"690 V","at 230 V at 60 °C rated value":"18 kW","at 690 V at 60 °C rated value":"54 kW","at AWG cables for main contacts":"2x (18 ... 2)","For Auxiliary And Control Circuit":"screw-type terminals","With Type Of Assignment 2 Required":"fuse gL/gG: 63 A","Surge Voltage Resistance Rated Value":"6 kV","With Type Of Coordination 1 Required":"fuse gL/gG: 125 A","at AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 1x 12","operational current at AC-12 maximum":"10 A","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 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Number Of Poles For Main Current Circuit":"3","Contact Reliability Of Auxiliary Contacts":"1 faulty switching per 100 million (17 V, 1 mA)","Thermal Short-Time Current Limited To 10 S":"320 A","Finely Stranded Without Core End Processing":"2x (0.75 ... 16 mm²)","apparent holding power of magnet coil at AC":"11.3 VA","apparent pick-up power of magnet coil at AC":"127 VA","Type Of Voltage Of The Control Supply Voltage":"AC","Required Spacing For Grounded Parts At The Side":"6 mm","contact rating of auxiliary contacts according to UL":"A600 / Q600","Inductive Power Factor With Closing Power Of The Coil":"0.73","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Inductive Power Factor With The Holding Power Of The Coil":"0.41","Of The Contactor With Added Auxiliary Switch Block Typical":"10 000 000","For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gL/gG: 10 A","number of NC contacts for auxiliary contacts instantaneous contact":"2","number of NO contacts for auxiliary contacts instantaneous contact":"2","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=27014&mlfb=3RT1034-1AL24","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1034-1AL24/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1034-1AL24","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/3RT1034-1AL24 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}}