{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1926-1ER00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1926-1ER00","canonicalUrl":"https://aoctrl.com/siemens/3RT1926-1ER00","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1926-1ER00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS, surge suppressor with diode assemblies, 24 V DC, for contactor size S0, order code 3RT1926-1ER00.","salesMarkdown":"The Siemens 3RT1926-1ER00 is a SIRIUS surge suppressor designed for DC-operated contactor coils. It uses a diode assembly to clamp the inductive flyback voltage when the coil de-energizes, protecting the control-circuit contacts and extending their electrical life. This unit is sized for S0-frame contactors and plugs onto the top of the device. Rated for 24 V DC control supply voltage, this suppressor matches the coil voltage of the SIRIUS contactor it protects. The diode design means it is polarity-sensitive — verify the DC supply orientation before plugging it in. It mounts directly onto the top of an S0-size contactor, occupying no additional DIN-rail space. The IP20 finger-safe enclosure on the front is standard for control-panel environments.","metaTitle":"Siemens 3RT1926-1ER00 SIRIUS Surge Suppressor, 24V DC, Diode","metaDescription":"Siemens 3RT1926-1ER00 SIRIUS surge suppressor with diode assemblies for 24V DC contactor coils. Phased-out; successor 3RT2926-1ER00 available. 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=166515&mlfb=3RT1926-1ER00","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1926-1ER00/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy the 3RT1926-1ER00 and get a price?","answer":"The 3RT1926-1ER00 is sourced to order through independent distribution against an RFQ. Availability and current pricing are confirmed at quote time."},{"question":"What is the 3RT1926-1ER00 used for?","answer":"It is a surge suppressor with diode assemblies, used to suppress the inductive voltage spike from a 24 V DC contactor coil when it is switched off. It plugs onto the top of a Siemens SIRIUS S0-size contactor."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1926-1ER00","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/3RT1926-1ER00 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}}