{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1034-3BB40-ZN88","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1034-3BB40-ZN88","canonicalUrl":"https://aoctrl.com/siemens/3RT1034-3BB40-ZN88","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1034-3BB40-ZN88","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, size S2, 24 VDC coil, screw-type terminals, 3RT1034-3BB40-ZN88, AC-3 18.5 kW at 500 V, IP20 front, snap-on 35 mm DIN rail.","salesMarkdown":"Side-by-side mounting is permitted, which keeps multi-contactor motor starter assemblies compact on the rail. The AC-3 rating of 18.5 kW at 500 V governs the motor load this contactor can switch — that is the standard duty for squirrel-cage motors during starting and running, so it covers pumps, fans, and conveyors up to that power. At 400 V AC-3 the rating is 15 kW. For resistive loads (AC-1) the mechanical endurance is 1 200 operations per hour maximum; for AC-3 it is 1 000 operations per hour, and for the most severe AC-4 plugging/reversing duty it drops to 250 operations per hour. The coil holds at 24 VDC; the DC arcing time is 20 to 30 ms, and the overall arcing time is 10 to 15 ms. The screw-type terminals accept solid conductors 2x (0.25 to 2.5 mm²) and stranded conductors 2x (0.75 to 25 mm²). For the main circuit, the solid or stranded range is 2x (0.75 to 16 mm²). At 40 °C the minimum permissible cross-section is 16 mm². These ranges cover standard panel wiring from control-circuit signal wires up to motor feeder cables.","metaTitle":"Siemens 3RT1034-3BB40-ZN88 SIRIUS Power Contactor, S2, 24 VD","metaDescription":"Siemens SIRIUS 3RT1034-3BB40-ZN88 power contactor, size S2, 24 VDC coil, screw terminals, snap-on DIN rail. Rated AC-3 18.5 kW at 500 V. Active production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"130 mm","Solid":"2x (0.25 ... 2.5 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":"0.8","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":"1.1","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":"spring-loaded 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 (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)","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=468872&mlfb=3RT1034-3BB40-ZN88","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1034-3BB40-ZN88/alternatives.json"},"ai":{"faq":[{"question":"Who supplies 3RT1034-3BB40-ZN88 and how is it quoted for volume purchases?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution channels; availability and current pricing are confirmed at the time of quote."},{"question":"What is 3RT1034-3BB40-ZN88's listed depth?","answer":"The depth is 130 mm."},{"question":"What solid wire range does the terminal accept?","answer":"The screw terminals accept solid conductors 2x (0.25 to 2.5 mm²)."},{"question":"What compliance documentation does this contactor carry?","answer":"The part has a substance prohibitance date of 05/01/2012, consistent with RoHS compliance; the SIRIUS series typically carries UL, CSA, and CE certifications per Siemens standard practice."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1034-3BB40-ZN88","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/3RT1034-3BB40-ZN88 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}}