{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1325-1BM45","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1325-1BM45","canonicalUrl":"https://aoctrl.com/siemens/3RT1325-1BM45","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1325-1BM45","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, size S0, 4 NO main contacts, screw terminals, 7.5 kW at 400 V AC-2, 24 VDC coil, snap-on 35 mm DIN rail.","salesMarkdown":"It carries 4 normally-open main contacts and is rated for 7.5 kW at 400 V in AC-2 duty, which covers slip-ring motor starting and plugging applications where the contactor makes and breaks the load current. The S0 footprint — 71 mm wide, 85 mm tall, 150 mm deep — fits the common panel layout for this frame class. Front-side protection is IP20; the terminals themselves are IP00, meaning the wiring zone expects enclosure protection. Main current circuit terminals are screw-type, accepting solid conductors from 2x 0.5 to 1.5 mm², 2x 0.75 to 2.5 mm², or up to 2x 4 mm². Finely stranded with core-end processing follows the same range. ## Protection coordination","metaTitle":"Siemens 3RT1325-1BM45 SIRIUS Power Contactor, S0, 7.5 kW AC-","metaDescription":"Siemens 3RT1325-1BM45 SIRIUS power contactor, size S0, 4 NO main contacts, screw terminals, 7.5 kW at 400 V AC-2. Current production, sourced to order. IP20 front.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"150 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), max. 2x (0.75 ... 4 mm²)","Width":"71 mm","Height":"85 mm","Maximum":"2 000 m","At The Side":"6 mm","Rated Value":"220 V","On The Front":"IP20","Initial Value":"0.8","Mounting type":"screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022","Of The Terminal":"IP00","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Full-scale value":"1.1","Size of contactor":"S0","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","Instantaneous Contact":"1","Side-by-side mounting":"Yes","For Main Current Circuit":"screw-type terminals","Single Or Multi-Stranded":"2x (1 ... 2,5 mm²), 2x (2,5 ... 6 mm²), max. 2x 10 mm²","at AC-2 at 400 V rated value":"7.5 kW","Closing power of magnet coil at DC":"5.4 W","Holding power of magnet coil at DC":"5.4 W","Operating current at AC-12 maximum":"10 A","With Type Of Assignment 2 Required":"fuse gL/gG: 25 A","at AWG conductors for main contacts":"2x (20 ... 16), 2x (18 ... 14), 1x 12","With Type Of Coordination 1 Required":"fuse gL/gG: 63 A","Reference code acc. to DIN EN 81346-2":"Q","Number of NC contacts for main contacts":"0","Number of NO contacts for main contacts":"4","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":"4","at AWG conductors for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 1x 12","Contact reliability of auxiliary contacts":"1 faulty switching per 100 million (17 V, 1 mA)","For Auxiliary And Control Current Circuit":"screw-type terminals","at ambient temperature 40 °C rated value":"35 A","Type of voltage of the control supply voltage":"DC","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","Of The Contactor With Added Electronics-Compatible 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=483620&mlfb=3RT1325-1BM45","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1325-1BM45/alternatives.json"},"ai":{"faq":[{"question":"What are the key dimensions for panel layout?","answer":"Width is 71 mm, height is 85 mm, and depth is 150 mm. Side-by-side mounting is allowed, so you can pack multiple units without additional spacing."},{"question":"What compliance documentation is available for this contactor?","answer":"As a current-production Siemens SIRIUS component, the 3RT1325-1BM45 is supported by manufacturer declarations for RoHS and REACH compliance, along with IEC/EN product standards. Specific certification marks (UL, CSA, CE) are detailed in the official datasheet and declaration of conformity available through the authorized channel."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1325-1BM45","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/3RT1325-1BM45 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}}