{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1934-5AP62","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1934-5AP62","canonicalUrl":"https://aoctrl.com/siemens/3RT1934-5AP62","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1934-5AP62","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT1934-5AP62, magnet coil for Size S2 contactors, spring-loaded connection, 220 V AC 50 Hz / 240 V AC 60 Hz, phased-out product.","salesMarkdown":"The Siemens SIRIUS 3RT1934-5AP62 is a replacement magnet coil for Size S2 contactors in the SIRIUS family. ## Fit note — Size S2 form factor This coil is dimensioned for SIRIUS Size S2 contactors — the physical envelope matches that frame. ## What the voltage ratings mean in practice The control supply voltage is AC only — don't feed it DC. At 50 Hz the rated coil voltage is 220 V; at 60 Hz it's 240 V. The pick-up and hold VA draw for a Size S2 coil will be higher than the S00/S0 frames, so verify the control transformer is sized to handle the inrush. The operating range of 0.8 to 1.1 times rated voltage means the coil pulls in reliably down to about 176 V at 50 Hz and drops out below that — useful to know if your control supply is shared with motor starters that cause a voltage dip on pickup.","metaTitle":"Siemens 3RT1934-5AP62 SIRIUS Magnet Coil, 220VAC 50Hz / 240V","metaDescription":"Siemens SIRIUS 3RT1934-5AP62 magnet coil for Size S2 contactors. 220V AC 50Hz / 240V AC 60Hz. Phased-out; successor is SIRIUS 3RT2. Sourced to order against RFQ.","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":"220 V","at 60 Hz rated value":"240 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=258800&mlfb=3RT1934-5AP62","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1934-5AP62/alternatives.json"},"ai":{"faq":[{"question":"What control voltage does this coil need?","answer":"It requires AC control supply voltage only — 220 V at 50 Hz or 240 V at 60 Hz. The operating range is 0.8 to 1.1 times rated voltage, so it pulls in reliably down to about 176 V at 50 Hz."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1934-5AP62","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/3RT1934-5AP62 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}}