{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1036-3BB40-ZN88","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1036-3BB40-ZN88","canonicalUrl":"https://aoctrl.com/siemens/3RT1036-3BB40-ZN88","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1036-3BB40-ZN88","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, size S2, 3RT1036-3BB40-ZN88, 24 VDC coil, 30 kW at 500 V AC-3, screw terminals, IP20 front, DIN rail mount.","salesMarkdown":"Its 24 VDC coil pulls in reliably; the rated operating current at AC-3 duty reaches 30 kW at 500 V, which covers a standard 37 kW 4-pole induction motor on a 400 V line. At 690 V the same duty drops to 11.4 kW, so if your line runs 690 V you need to check the motor nameplate against that lower ceiling. For resistive loads (AC-1) the mechanical life of 10 million operations is the limiting factor, not the electrical endurance. If your control transformer is marginal on regulation, factor in the 20 to 25 ms closing time and 10 to 15 ms arcing time when coordinating with upstream fuses or a motor-protective breaker. Solid wire from 0.25 to 2.5 mm² and stranded from 0.75 to 25 mm² — that covers most motor feeder cables up to 6 mm² for a 30 kW load. Side-by-side mounting is allowed, which saves rail space in a multi-contactor group, but remember the thermal derating if you pack them tight at the upper end of the operating range (-25 to +60 °C,).","metaTitle":"Siemens 3RT1036-3BB40-ZN88 SIRIUS Power Contactor, 24 VDC, 3","metaDescription":"Siemens 3RT1036-3BB40-ZN88 SIRIUS power contactor, size S2, 24 VDC coil, rated 30 kW at 500 V AC-3. IP20 front, screw terminals, DIN rail mount. Current lifecycle, available to ord","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 ... 25 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":"1 000 1/h","at AC-2 maximum":"400 1/h","at AC-3 maximum":"800 1/h","at AC-4 maximum":"300 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":"30 kW","at 690 V rated value":"11.4 kW","Side-By-Side Mounting":"Yes","For Main Current Circuit":"screw-type terminals","at AC-2 at 400 V rated value":"22 kW","at AC-4 at 400 V rated value":"41 A","Substance Prohibitance (Date)":"05/01/2012","at 40 °C minimum permissible":"16 mm²","at 60 °C minimum permissible":"16 mm²","Insulation Voltage Rated Value":"690 V","at 230 V at 60 °C rated value":"22 kW","at 690 V at 60 °C rated value":"66 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: 80 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: 160 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":"400 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=290484&mlfb=3RT1036-3BB40-ZN88","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1036-3BB40-ZN88/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RT1036-3BB40-ZN88 and get a price?","answer":"The part is available to order through independent industrial-automation distribution. Submit an RFQ for current pricing and availability — stock levels and lead times are confirmed at quote time."},{"question":"What is the closest functional second-source to 3RT1036-3BB40-ZN88?","answer":"The 3RT1044-1FB46 is a larger frame size (S3 vs S2) with a higher AC-3 rating, so it won't drop into the same panel footprint or wiring schedule without changes. The 3RT5034-1BW40 and 3RT5034-1AR60 are from the newer SIRIUS 3RT5 generation with different terminal layouts and coil options — not a direct mechanical swap."},{"question":"Will 3RT1036-3BB40-ZN88 drop into a panel specified around 3RT1044-1FB46?","answer":"No. The 3RT1044-1FB46 is size S3 with a 70 mm width and different mounting hole pattern; the 3RT1036-3BB40-ZN88 is size S2 at 55 mm wide. The DIN rail clip fits the same 35 mm rail, but the panel cutout, terminal positions, and conductor sizing differ."},{"question":"What compliance documentation does Siemens provide for 3RT1036-3BB40-ZN88?","answer":"The part carries a RoHS compliance date of 05/01/2012. Standard Siemens documentation includes a CE declaration of conformity and a UL/CSA file number — request these from the supplier at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1036-3BB40-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/3RT1036-3BB40-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}}