{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1034-1AB00-1AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1034-1AB00-1AA0","canonicalUrl":"https://aoctrl.com/siemens/3RT1034-1AB00-1AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1034-1AB00-1AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS S2 power contactor, 3RT1034-1AB00-1AA0, 18.5 kW at 500 V AC-3, screw-type terminals, 55 mm width, IP20 front.","salesMarkdown":"The Siemens 3RT1034-1AB00-1AA0 is a SIRIUS S2-frame power contactor rated for switching motor loads. Its headline AC-3 rating is 18.5 kW at 500 V — that's the current it can make and break under full motor load, so it handles a standard 25 hp (18.5 kW) induction motor on a 500 V line. The AC-4 rating of 29 A at 400 V covers inching and plugging duty where the contactor breaks stalled-rotor current, which is the tougher thermal cycle. The terminals themselves are IP00, meaning they rely on the panel's own protection. ## Wiring and integration Screw-type terminals on the main circuit accept solid wire up to 2x (0.75...4 mm²) per clamp, and stranded wire up to 2x (0.75...25 mm²). At 40 °C ambient, the minimum permissible conductor is 16 mm² — that's the thermal limit for full rated current without derating. The contactor measures 55 mm wide, 112 mm tall, and 115 mm deep — a compact S2 footprint that fits standard 55 mm-wide DIN-rail slots. ## Environmental limits","metaTitle":"Siemens 3RT1034-1AB00-1AA0 SIRIUS S2 Power Contactor, 18.5 k","metaDescription":"Siemens SIRIUS S2 power contactor, 3RT1034-1AB00-1AA0. Rated 18.5 kW at 500 V AC-3. Screw terminals, 55 mm wide. Current production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"115 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","Arcing Time":"10 ... 15 ms","On The Front":"IP20","1 Rated Value":"50 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":"24 V","at 500 V rated value":"18.5 kW","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":"9.7 VA","apparent pick-up power of magnet coil at AC":"104 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":"0.78","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Inductive Power Factor With The Holding Power Of The Coil":"0.42","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=152111&mlfb=3RT1034-1AB00-1AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1034-1AB00-1AA0/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional second-source to the 3RT1034-1AB00-1AA0?","answer":"The 3RT1034-1AN60-1AA0 is a sibling in the same S2 frame with the same AC-3 power rating. The difference is the coil voltage — the -1AB00 uses a 24 V 50 Hz coil, while the -1AN60 uses a different coil voltage. Mechanically and thermally they are identical; the swap depends on whether your control circuit matches the coil."},{"question":"Will the 3RT1034-1AB00-1AA0 drop into a panel specified around the 3RT1034-1AN60-1AA0 without rewiring?","answer":"Yes, the mechanical footprint (55 mm width, screw-type terminals, DIN-rail mount) is identical. The main power wiring is the same. Only the coil supply differs — verify your control voltage matches 24 V at 50 Hz before swapping."},{"question":"What compliance documentation does Siemens provide for this contactor?","answer":"The part carries a RoHS compliance date of May 1, 2012. It is designed for pollution degree 3 environments. Standard Siemens documentation includes the declaration of conformity for the CE mark and UL/CSA recognition for the SIRIUS series."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1034-1AB00-1AA0","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/3RT1034-1AB00-1AA0 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}}