{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1935-5AK62","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1935-5AK62","canonicalUrl":"https://aoctrl.com/siemens/3RT1935-5AK62","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1935-5AK62","rawCanonicalId":null},"summary":{"shortDescription":"SIRIUS Size S2 magnet coil, 110 V AC 50 Hz / 120 V AC 60 Hz, spring-loaded connection, for 3RT1 contactors.","salesMarkdown":"The 3RT1935-5AK62 is a SIRIUS magnet coil designed for Size S2 contactors, with a spring-loaded connection terminal. It's the replaceable coil assembly that pulls in the contactor's main and auxiliary contacts when energized. Rated for 110 V AC at 50 Hz and 120 V AC at 60 Hz, this coil draws a holding current in the 0.8 to 1.1 A range at 50 Hz. That's the steady-state current the contactor's control transformer or PLC output must supply once the contactor is sealed in. The 0.8 to 1.1 A at 50 Hz figure is the inrush or holding current the coil draws. For a panel-builder or MRO planner, that tells you the control transformer VA rating needs headroom above this draw — especially during inrush, which can be several times the holding current for a brief cycle. The spring-loaded connection accepts solid or ferruled stranded wire without needing screw tightening, which speeds up panel wiring and reduces loose-terminal callbacks.","metaTitle":"3RT1935-5AK62 SIRIUS Magnet Coil, 110 VAC 50 Hz / 120 VAC 60","metaDescription":"SIRIUS 3RT1935-5AK62 magnet coil for Size S2 contactors. 110 V AC 50 Hz / 120 V AC 60 Hz, spring-loaded connection. Phased-out; successor is SIRIUS 3RT2 series. Sourced to order.","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":"110 V","at 60 Hz rated value":"120 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=144197&mlfb=3RT1935-5AK62","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1935-5AK62/alternatives.json"},"ai":{"faq":[{"question":"What is the coil voltage and frequency rating?","answer":"110 V AC at 50 Hz, 120 V AC at 60 Hz. The holding current at 50 Hz is 0.8 to 1.1 A."},{"question":"Will the 3RT7036-1AG20 drop into a panel wired for this coil?","answer":"No. The 3RT7036-1AG20 is a complete contactor, not a coil. It uses a different coil voltage (110 V at both 50 and 60 Hz) and has screw terminals, not spring-loaded. The mechanical footprint and wiring differ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1935-5AK62","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/3RT1935-5AK62 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}}