{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1034-3AL20-ZW97","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1034-3AL20-ZW97","canonicalUrl":"https://aoctrl.com/siemens/3RT1034-3AL20-ZW97","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1034-3AL20-ZW97","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT1034-3AL20-ZW97, size S2 power contactor, 18.5 kW at 500 V AC-3, 230 V 50/60 Hz coil, screw terminals, DIN rail mount.","salesMarkdown":"The Siemens SIRIUS 3RT1034-3AL20-ZW97 is a size S2 power contactor rated for motor switching at 18.5 kW at 500 V in AC-3 duty, and 10 kW at 690 V in AC-3 duty. The coil is wound for 230 V at both 50 Hz and 60 Hz, with an operating range of 0.8 to 1.1 times rated voltage at 50 Hz and 0.85 to 1.1 at 60 Hz. Side-by-side mounting is supported, so multiple contactors can be ganged without spacing gaps. Dimensions are 112 mm high, 55 mm wide, and 115 mm deep, fitting the S2 frame footprint common across the SIRIUS contactor line. Main circuit terminals are screw-type, accepting 2x solid conductors from 0.25 to 2.5 mm², or 2x stranded conductors from 0.75 to 25 mm². The larger stranded range covers the full current capacity of the contactor without needing lug adapters. ## Switching Performance and Life Maximum switching frequency varies by duty: 1,200 cycles per hour in AC-1 (resistive), 1,000 in AC-3 (motor start/run), 750 in AC-2 (slip-ring motor), and 250 in AC-4 (plugging/inching). The AC-4 limit is the binding constraint for high-duty-cycle reversing or jogging applications. Built-in auxiliary contacts are rated for 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. These cover typical control circuit voltages in both 24 VDC and 230 VAC panels.","metaTitle":"Siemens 3RT1034-3AL20-ZW97 SIRIUS Power Contactor, 18.5 kW a","metaDescription":"Siemens SIRIUS 3RT1034-3AL20-ZW97 power contactor, size S2. Rated 18.5 kW at 500 V AC-3. Screw terminals, 230 V 50/60 Hz coil. DIN rail mount. Active production.","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":"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":"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=116732&mlfb=3RT1034-3AL20-ZW97","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1034-3AL20-ZW97/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional alternative to 3RT1034-3AL20-ZW97?","answer":"The 3RT1036-1AB00 is a larger-frame SIRIUS contactor. It will not drop into the same footprint without panel modifications — the S2 frame (55 mm wide) differs from the larger S3 frame. Check the specific motor rating and coil voltage against your application before substituting."},{"question":"What are the key dimensions of this contactor?","answer":"Height is 112 mm, width is 55 mm, and depth is 115 mm. This is the standard S2 frame size."},{"question":"What wire sizes does the main circuit accept?","answer":"Screw terminals accept 2x solid conductors from 0.25 to 2.5 mm², or 2x stranded conductors from 0.75 to 25 mm²."},{"question":"What compliance documentation is available for this part?","answer":"As a standard Siemens SIRIUS product, RoHS, REACH, UL, and IEC compliance documentation is available. Request specific certificates with your RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1034-3AL20-ZW97","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/3RT1034-3AL20-ZW97 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}}