{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT5046-1BM40","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT5046-1BM40","canonicalUrl":"https://aoctrl.com/siemens/3RT5046-1BM40","factsUrl":"https://aoctrl.com/api/mcp/products/3RT5046-1BM40","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS S3 power contactor, 3RT5046-1BM40, screw-type terminals, 70 mm width, 152 mm depth, 146 mm height, rated 66 kW at 400 V at 60 °C.","salesMarkdown":"## SIRIUS S3 power contactor — 3RT5046-1BM40 It mounts via screw and snap-on onto 35 mm or 75 mm standard mounting rail, with ±180° rotation possible on a vertical surface and ±22.5° tilt forward/backward — useful when panel layout forces an unconventional orientation. Rated motor power at 60 °C: 38 kW at 230 V, 66 kW at 400 V, 114 kW at 690 V. The 690 V figure (25.4 kW) is also listed separately — the 114 kW at 690 V at 60 °C is the higher thermal rating. For backup protection, the manufacturer specifies a fuse gL/gG: 160 A with type of assignment 2 required. Coil power: 15 W closing and 15 W holding at DC. Maximum switching frequency at AC-1: 900 1/h; AC-3: 850 1/h; AC-4: 250 1/h; DC: 1,000 1/h. ## Panel integration — footprint and wiring Footprint: 70 mm wide, 152 mm deep, 146 mm high. Side-by-side mounting is permitted. Main circuit terminals accept 2x (2.5…16 mm²) solid/stranded or 2x (10…1/0) AWG. Minimum permissible cross-section at 40 °C is 50 mm²; at 60 °C it drops to 35 mm² — derate the wire if the enclosure ambient runs hot. Degree of pollution 3, insulation voltage rated 1,000 V. Storage temperature range -55…+80 °C; operating range -25…+60 °C. Auxiliary switch extension is supported.","metaTitle":"Siemens 3RT5046-1BM40 SIRIUS S3 Power Contactor, 70 mm","metaDescription":"Siemens 3RT5046-1BM40 SIRIUS S3 power contactor. 70 mm width, screw-type terminals, 152 mm depth. Rated 66 kW at 400 V at 60 °C. Current lifecycle stage. Sourced to order against R","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"152 mm","Width":"70 mm","at DC":"1 000 1/h","Height":"146 mm","Rated Value":"220 V","During Storage":"-55 ... +80 °C","at AC-1 maximum":"900 1/h","at AC-3 maximum":"850 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 and 75 mm standard mounting rail","Mounting Position":"+/-180° rotation possible on vertical mounting surface; can be tilted forward and backward by +/- 22.5° on vertical mounting surface","Size Of Contactor":"S3","Solid Or Stranded":"2x (2.5 ... 16 mm²)","Product Brand Name":"SIRIUS","Degree Of Pollution":"3","Product Designation":"Power contactor","at 24 V rated value":"6 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 690 V rated value":"25.4 kW","Side-By-Side Mounting":"Yes","For Main Current Circuit":"screw-type terminals","Substance Prohibitance (Date)":"03/01/2017","at 40 °C minimum permissible":"50 mm²","at 60 °C minimum permissible":"35 mm²","Insulation Voltage Rated Value":"1 000 V","at 230 V at 60 °C rated value":"38 kW","at 400 V at 60 °C rated value":"66 kW","at 690 V at 60 °C rated value":"114 kW","at AWG cables for main contacts":"2x (10 ... 1/0)","For Auxiliary And Control Circuit":"screw-type terminals","Product Extension Auxiliary Switch":"Yes","With Type Of Assignment 2 Required":"fuse gL/gG: 160 A","closing power of magnet coil at DC":"15 W","holding power of magnet coil at DC":"15 W","Surge Voltage Resistance Rated Value":"6 kV","With Type Of Coordination 1 Required":"fuse gL/gG: 250 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","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)","at ambient temperature 40 °C rated value":"120 A","at ambient temperature 60 °C rated value":"100 A","Finely Stranded Without Core End Processing":"2x (10 ... 35 mm²)","Type Of Voltage Of The Control Supply Voltage":"DC","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"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/802fd6207d6a56fbfce339962bad4f24.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=580254&mlfb=3RT5046-1BM40","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT5046-1BM40/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT5046-1BM40","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/3RT5046-1BM40 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}}