{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1034-3AG20","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1034-3AG20","canonicalUrl":"https://aoctrl.com/siemens/3RT1034-3AG20","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1034-3AG20","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, S2 size, 55 mm width, 115 mm depth, screw-type terminals, snap-on DIN rail mounting, 18.5 kW at 500 V / 10 kW at 690 V.","salesMarkdown":"## SIRIUS S2 power contactor — 3RT1034-3AG20 Siemens SIRIUS 3RT1034-3AG20 is a power contactor in the S2 frame size, 55 mm wide and 115 mm deep, for switching motor and resistive loads in industrial control panels. ## Motor power and auxiliary contact ratings At 500 V the contactor handles 18.5 kW motor load; at 690 V it handles 10 kW. The auxiliary contacts switch 10 A at 24 V, 2 A at 60 V, 1 A at 110 V, 0.3 A at 220 V, 6 A at 230 V, and 3 A at 400 V. ## Switching frequency and environmental limits Maximum switching rates: 1 200 cycles/h under AC-1, 750 under AC-2, 1 000 under AC-3, and 250 under AC-4. Pollution degree 3 and side-by-side mounting permitted. Accepts 2x solid conductors 0.25–2.5 mm² and 2x stranded 0.75–25 mm². The auxiliary circuit accepts 2x stranded 0.75–16 mm². Front face is IP20; terminal area is IP00.","metaTitle":"Siemens 3RT1034-3AG20 SIRIUS Power Contactor, S2, 55 mm, 115","metaDescription":"Siemens SIRIUS power contactor 3RT1034-3AG20, S2 size, 55 mm width, 115 mm depth. Rated for 18.5 kW at 500 V / 10 kW at 690 V. Screw terminals, snap-on DIN rail. Current lifecycle.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"115 mm","Solid":"2x (0.25 ... 2.5 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":"110 V","at 500 V rated value":"18.5 kW","at 60 Hz rated value":"110 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":"spring-loaded 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 (24 ... 14)","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 (0.25 ... 1.5 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 (0.25 ... 2.5 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":"0","number of NO contacts for auxiliary contacts instantaneous contact":"0","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=167306&mlfb=3RT1034-3AG20","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1034-3AG20/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3RT1034-3AG20?","answer":"Submit an RFQ through this listing — availability and current pricing are confirmed at quote time."},{"question":"What are the key dimensions of 3RT1034-3AG20?","answer":"Width 55 mm, height 112 mm, depth 115 mm."},{"question":"What wire sizes does the 3RT1034-3AG20 accept?","answer":"Main terminals accept 2x solid 0.25–2.5 mm² and 2x stranded 0.75–25 mm²; auxiliary terminals accept 2x stranded 0.75–16 mm²."},{"question":"What is the closest functional second-source to 3RT1034-3AG20?","answer":"The 3RT5034-1BW40 is a peer in the same S2 frame, but verify terminal layout and auxiliary contact configuration before drop-in substitution."},{"question":"What compliance documentation does Siemens provide for 3RT1034-3AG20?","answer":"The evidence does not list RoHS, REACH, UL, or IEC declarations for this specific order code."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1034-3AG20","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/3RT1034-3AG20 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}}