{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT7926-1CD00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT7926-1CD00","canonicalUrl":"https://aoctrl.com/siemens/3RT7926-1CD00","factsUrl":"https://aoctrl.com/api/mcp/products/3RT7926-1CD00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS surge suppressor RC, 3RT7926-1CD00, for plugging onto 3RT7 S0 contactors, AC/DC control supply, clip-on mounting, 12 mm depth.","salesMarkdown":"The Siemens 3RT7926-1CD00 is a SIRIUS surge suppressor — an RC element designed to plug directly onto 3RT7 S0-size contactors. It snubs voltage spikes from the coil circuit, protecting nearby electronics and extending contactor life on inductive loads like motor starters or valve solenoids. Rated for AC control supplies at 127–240 V (50/60 Hz) and DC supplies at 150–250 V, it handles both common line voltages without a separate coil-voltage variant. The AC/DC input means one part covers a mixed-voltage panel — useful when a line has both 230 VAC and 200 VDC control circuits. ## Mounting and fit Clip-on fastening snaps directly onto the contactor's coil terminals — no tools, no extra wiring. The 12 mm depth and 30 mm width keep it flush with the contactor body, so it doesn't steal DIN-rail space or block adjacent devices in a dense panel. Storage tolerance down to -25 °C is fine for unheated warehouses.","metaTitle":"Siemens 3RT7926-1CD00 SIRIUS Surge Suppressor RC, 12 mm Dept","metaDescription":"Siemens 3RT7926-1CD00 SIRIUS surge suppressor RC element for plugging onto 3RT7 S0 contactors. Rated AC 127-240 V, DC 150-250 V. Clip-on mounting. Current production. Quoted to ord","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"12 mm","Width":"30 mm","at DC":"150 ... 250 V","title":"3RT7926-1CD00","Height":"19 mm","at 50 Hz":"127 ... 240 V","at 60 Hz":"127 ... 240 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/DC"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/3289bef001119bb241f47be531aaf025.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1646532&mlfb=3RT7926-1CD00"},"ai":{"faq":[{"question":"What contactors does 3RT7926-1CD00 fit?","answer":"It plugs onto SIRIUS 3RT7 contactors in size S0. The RC element snaps onto the coil terminals without additional wiring."},{"question":"What voltage range does this surge suppressor cover?","answer":"AC control supplies from 127 to 240 V at 50 or 60 Hz, and DC supplies from 150 to 250 V. The AC/DC input eliminates the need to stock separate coil-voltage variants."},{"question":"Where can I buy 3RT7926-1CD00?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT7926-1CD00","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/3RT7926-1CD00 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}}