{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1945-5AD22","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1945-5AD22","canonicalUrl":"https://aoctrl.com/siemens/3RT1945-5AD22","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1945-5AD22","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS magnet coil, 3RT1945-5AD22, for Size S3 contactors, 42 V AC 50/60 Hz, spring-loaded connection technology.","salesMarkdown":"The Siemens SIRIUS 3RT1945-5AD22 is a magnet coil for Size S3 contactors, rated 42 V AC at both 50 Hz and 60 Hz. It uses spring-loaded connection technology for the control wiring — no screw terminals on the coil, so the panel wireman needs a small flat-blade screwdriver to depress the cage clamp. The coil mounts directly onto the SIRIUS Size S3 contactor armature; no additional bracket or adapter is needed. The 42 V AC control supply is common in older European panel designs — confirm the control transformer taps before fitting.","metaTitle":"Siemens 3RT1945-5AD22 SIRIUS Magnet Coil, 42 V AC, 50/60 Hz","metaDescription":"Siemens SIRIUS 3RT1945-5AD22 magnet coil for Size S3 contactors. 42 V AC 50/60 Hz, spring-loaded connection. Phased-out product; successor is SIRIUS 3RT2 series. Sourced to order a","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"at 50 Hz":"0.8 ... 1.1","lifecycle_stage":"current","Product Brand Name":"SIRIUS","Product Designation":"Magnet coil","at 50 Hz rated value":"42 V","at 60 Hz rated value":"42 V","Type Of Voltage Of The Control Supply Voltage":"AC"}},"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=522650&mlfb=3RT1945-5AD22","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1945-5AD22/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1945-5AD22","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/3RT1945-5AD22 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}}