{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT7926-1CF00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT7926-1CF00","canonicalUrl":"https://aoctrl.com/siemens/3RT7926-1CF00","factsUrl":"https://aoctrl.com/api/mcp/products/3RT7926-1CF00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS RC surge suppressor, 3RT7926-1CF00, for plug-on mounting to 3RT7 S0 contactors, rated 400-600 VAC at 50/60 Hz.","salesMarkdown":"The Siemens 3RT7926-1CF00 is a SIRIUS RC surge suppressor designed to clip directly onto 3RT7 S0-size contactors. It suppresses voltage spikes across the coil terminals, protecting the control circuit from inductive kickback when the contactor de-energizes. The RC element design handles the transient energy without the polarity constraints of a diode, making it a drop-in fit for AC coil circuits. Dimensions are compact: 12 mm deep, 30 mm wide, 19 mm tall. The clip-on fastening means no wiring is needed — it pushes onto the contactor's coil terminals and is held by the existing connection springs. ## Integration Mounts in any position — vertical, horizontal, or flat — on the contactor face. The RC element is self-contained; no additional wiring or panel space is consumed beyond the contactor's own footprint. Operating temperature range is -10 to +55 °C; storage range extends from -25 to +70 °C. Suitable for standard industrial control panels without derating in most indoor environments.","metaTitle":"Siemens 3RT7926-1CF00 SIRIUS Surge Suppressor, RC, 400-600 V","metaDescription":"Siemens 3RT7926-1CF00 SIRIUS RC surge suppressor for S0 contactors. Rated 400-600 VAC, 50/60 Hz. Clip-on mounting. RoHS compliant. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"12 mm","Width":"30 mm","title":"3RT7926-1CF00","Height":"19 mm","at 50 Hz":"400 ... 600 V","at 60 Hz":"400 ... 600 V","description":"Surge suppressor RC For plugging onto contactors 3RT7 S0","1 Rated Value":"50 Hz","2 Rated Value":"60 Hz","During Storage":"-25 ... +70 °C","lifecycle_stage":"current","During Operation":"-10 ... +55 °C","Fastening Method":"clip-on","Mounting Position":"any","Size Of Contactor":"S0","Product Brand Name":"SIRIUS","Product Designation":"surge suppressor","Substance Prohibitance (Date)":"06/15/2022","Design Of The Surge Suppressor":"RC element","Type Of Voltage Of The Control Supply Voltage":"AC"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/a31320a78aa9bc2fc40e6b6a71ad7564.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1646534&mlfb=3RT7926-1CF00"},"ai":{"faq":[{"question":"What contactors does 3RT7926-1CF00 fit?","answer":"It clips onto Siemens 3RT7 contactors in size S0. The RC element bridges the coil terminals directly."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT7926-1CF00","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/3RT7926-1CF00 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}