{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1926-1TR00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1926-1TR00","canonicalUrl":"https://aoctrl.com/siemens/3RT1926-1TR00","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1926-1TR00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT1926-1TR00 surge suppressor, diode assembly design, 24 V DC control supply voltage, size S0 plug-in bottom mount.","salesMarkdown":"## Siemens SIRIUS 3RT1926-1TR00 Surge Suppressor — 24 V DC Diode Assembly The Siemens SIRIUS 3RT1926-1TR00 is a surge suppressor with diode assemblies, designed for 24 V DC control supply voltage circuits. It plugs into the bottom of a size S0 contactor or similar SIRIUS device, suppressing inductive kickback from the coil when the DC circuit opens — protecting downstream PLC outputs and auxiliary contacts from voltage spikes that exceed their rated blocking voltage. The suppressor plugs into the bottom of a size S0 contactor — no wiring required beyond the contactor coil terminals. Verify the contactor coil voltage matches 24 V DC; the diode assembly is polarity-sensitive, so the DC supply polarity must be consistent with the module's internal diode orientation.","metaTitle":"Siemens 3RT1926-1TR00 SIRIUS Surge Suppressor, 24 V DC","metaDescription":"Siemens SIRIUS 3RT1926-1TR00 surge suppressor with diode assemblies for 24 V DC control circuits. Phased-out product; successor is 3RT2926-1ER00. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"lifecycle_stage":"current","at DC rated value":"24V","Product Brand Name":"SIRIUS","Product Designation":"surge suppressor","Design Of The Surge Suppressor":"with diode assemblies","Type Of Voltage Of The Control Supply Voltage":"DC"}},"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=123125&mlfb=3RT1926-1TR00","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1926-1TR00/alternatives.json"},"ai":{"faq":[{"question":"What is the 3RT1926-1TR00 used for?","answer":"It is a surge suppressor with diode assemblies for 24 V DC control circuits. It plugs into the bottom of a size S0 contactor to suppress inductive voltage spikes from the DC coil when de-energized."},{"question":"What replaces 3RT1926-1TR00?","answer":"The official preferred successor is the SIRIUS 3RT2926-1ER00. It is a direct functional replacement for the same 24 V DC diode suppression application on size S0 devices."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1926-1TR00","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/3RT1926-1TR00 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}}