{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1034-1BB80","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1034-1BB80","canonicalUrl":"https://aoctrl.com/siemens/3RT1034-1BB80","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1034-1BB80","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, size S2, 24 VDC coil, screw-type terminals, 18.5 kW at 500 V AC-3, 55 mm wide, DIN rail mount.","salesMarkdown":"It is rated for 18.5 kW motor load at 500 V under AC-3 duty, and 15 kW at 400 V under AC-2 duty — the AC-3 figure governs across-the-line starting of standard squirrel-cage motors, while AC-2 covers slip-ring or wound-rotor motors where starting current is lower but switching frequency matters. Side-by-side mounting is permitted (no derating gap), which keeps panel width tight. Wire range: solid accepts 2x (0.5...1.5 mm²) and 2x (0.75...2.5 mm²) up to 2x (0.75...4 mm²); stranded accepts 2x (0.75...25 mm²). At 40 °C the minimum permissible conductor is 16 mm² — that's the thermal limit for the main circuit under full load, not a wiring convenience spec. ## Switching rates and mechanical life Maximum switching rates: 1 200 cycles/hour at AC-1 (resistive), 750 at AC-2, 1 000 at AC-3, and 250 at AC-4. The AC-4 rate is the constraint for heavy jogging or plugging duty — 250 cycles/hour means roughly one reversal every 14 seconds, which matches typical crane or winch control.","metaTitle":"Siemens 3RT1034-1BB80 SIRIUS Power Contactor, S2, 24 VDC, 18","metaDescription":"Siemens SIRIUS 3RT1034-1BB80 power contactor, size S2, 24 VDC coil, 18.5 kW at 500 V AC-3, screw terminals, DIN rail mount. Active production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"130 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), max. 2x (0.75 ... 4 mm²)","Width":"55 mm","at DC":"20 ... 30 ms","Height":"112 mm","Stranded":"2x (0.75 ... 25 mm²)","Arcing Time":"10 ... 15 ms","Rated Value":"24 V","On The Front":"IP20","Initial Value":"0.98","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","Full-Scale Value":"1.02","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 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","closing power of magnet coil at DC":"13.3 W","holding power of magnet coil at DC":"13.3 W","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)","Type Of Voltage Of The Control Supply Voltage":"DC","Required Spacing For Grounded Parts At The Side":"6 mm","contact rating of auxiliary contacts according to UL":"A600 / Q600","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","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=452953&mlfb=3RT1034-1BB80","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1034-1BB80/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional alternative — 3RT1036-1AB00?","answer":"The 3RT1036-1AB00 is a physically larger contactor (size S3 vs S2) and will not drop into the same DIN-rail footprint without re-drilling the panel. The 3RT1034-1BB80 uses a 55 mm wide body; the S3 frame is wider. If the panel has S2 cutouts or pre-drilled mounting holes, stick with this size. For a new build where panel space allows, the S3 carries higher ratings, but the wiring pattern and auxiliary contact layout differ."},{"question":"What compliance documentation comes with this contactor?","answer":"RoHS compliance (substance prohibitance date 05/01/2012), CE marking per Low Voltage Directive, and IEC/EN 60947-4-1 certification are standard. UL/CSA listing is not confirmed in this record — verify with the manufacturer's declaration if UL marking is required for your panel."},{"question":"What is the depth and how does it affect panel layout?","answer":"Depth is 130 mm, width is 55 mm, height is 112 mm. The 130 mm depth includes the arc chamber and coil overhang — ensure at least 150 mm clearance behind the panel door for wiring access and heat dissipation."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1034-1BB80","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/3RT1034-1BB80 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}}