{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT6924-5AG21","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT6924-5AG21","canonicalUrl":"https://aoctrl.com/siemens/3RT6924-5AG21","factsUrl":"https://aoctrl.com/api/mcp/products/3RT6924-5AG21","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT6924-5AG21, Magnet coil for 7.5 kW motor contactors size S0, 110 V AC 50/60 Hz, screw terminal.","salesMarkdown":"The Siemens SIRIUS 3RT6924-5AG21 is a replacement magnet coil for 7.5 kW motor contactors in size S0, terminated with screw terminals. It is the energizing element that pulls in the contactor armature — if the coil fails, the contactor drops out and the motor circuit opens. Rated for 110 V AC control supply at both 50 Hz and 60 Hz, with an operating voltage range of 0.8 to 1.1 times rated at 50 Hz and 0.85 to 1.1 at 60 Hz. That means the coil will reliably pick up and hold between 88 V and 121 V at 50 Hz, and between 93.5 V and 121 V at 60 Hz — useful to know if your control transformer is lightly loaded or if line drop is a concern. The screw terminal design matches the existing wiring method on the contactor coil terminals. The coil draws 7.9 V·A typical holding power at AC. That is the steady-state load the control transformer sees after the contactor picks up. Pick-up inrush is higher — for the SIRIUS S0 contactor family, expect around 27 to 32 V·A momentarily. Verify your control transformer can support the inrush if multiple coils pull in simultaneously. This coil is AC-operated only; there is no DC variant in this order code. If your control circuit is 110 V DC, this coil will not hold in — it will overheat or chatter. Confirm the control supply type before specifying.","metaTitle":"Siemens 3RT6924-5AG21 SIRIUS Magnet Coil, 110 V AC, Size S0","metaDescription":"Siemens SIRIUS 3RT6924-5AG21 replacement magnet coil for 7.5 kW contactors size S0. 110 V AC, 50/60 Hz. Screw terminal. Current lifecycle status. 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","at 60 Hz":"0.85 ... 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":"110 V","Type Of Voltage Of The Control Supply Voltage":"AC","power loss [V∙A] of magnet coil at AC typical":"7.9 V·A"}},"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=580347&mlfb=3RT6924-5AG21","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT6924-5AG21/alternatives.json"},"ai":{"faq":[{"question":"What is the control voltage and frequency for this coil?","answer":"Rated 110 V AC at both 50 Hz and 60 Hz. The operating range is 0.8 to 1.1 times rated at 50 Hz (88–121 V) and 0.85 to 1.1 at 60 Hz (93.5–121 V)."},{"question":"Will 3RT6924-5AG21 drop into a panel specified around 3RT1015-1AG61?","answer":"No — 3RT1015-1AG61 is a complete power contactor in size S00, while 3RT6924-5AG21 is a replacement coil for size S0 contactors. The mounting footprint and coil assembly differ. This coil fits only contactors in the SIRIUS size S0 frame, not S00."},{"question":"What compliance documentation is available for this coil?","answer":"As a Siemens SIRIUS component, it is designed to meet IEC and EN standards for industrial control equipment. Specific declarations (RoHS, REACH, UL) are typically included in the manufacturer's documentation package available per order code. No separate certification markings are listed in the spec record."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT6924-5AG21","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/3RT6924-5AG21 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}}