{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1936-1ER00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1936-1ER00","canonicalUrl":"https://aoctrl.com/siemens/3RT1936-1ER00","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1936-1ER00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT1936-1ER00, surge suppressor with diode assemblies, 24 V DC, for contactors Size S2 and S3.","salesMarkdown":"The Siemens 3RT1936-1ER00 is a SIRIUS surge suppressor with diode assemblies, designed for 24 V DC control supply voltage. It suppresses the inductive kickback from a contactor coil when de-energized, protecting nearby electronics and prolonging contact life. The 3RT1936-1ER00 is marked as a phased-out product. The official SIRIUS 3RT2 preferred successor is the 3RT2936-1ER00, which shares the same diode design and 24 V DC rating but is built for the current 3RT2 contactor platform. Availability is confirmed per inquiry. Rated for 24 V DC only — the diode assemblies are polarity-sensitive, so verify the control circuit orientation before installation. Installing on an AC coil will not suppress correctly and may damage the diode stack. The suppressor clips directly onto the contactor's coil terminals, adding minimal depth to the existing DIN-rail assembly. No additional wiring or enclosure space is needed beyond the contactor footprint.","metaTitle":"Siemens 3RT1936-1ER00 SIRIUS Surge Suppressor, 24 V DC, Diod","metaDescription":"Siemens SIRIUS 3RT1936-1ER00 surge suppressor with diode assemblies, 24 V DC. Phased-out; successor 3RT2936-1ER00. Sourced to order against RFQ.","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=145631&mlfb=3RT1936-1ER00","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1936-1ER00/alternatives.json"},"ai":{"faq":[{"question":"What replaces the 3RT1936-1ER00?","answer":"The official Siemens preferred successor is the 3RT2936-1ER00. It uses the same diode assemblies and 24 V DC rating, designed for the current 3RT2 contactor series."},{"question":"What contactors does this surge suppressor fit?","answer":"It mounts onto SIRIUS contactors in Size S2 and S3. These are the larger frame sizes used for higher-current switching applications."},{"question":"What is the control voltage rating?","answer":"24 V DC. The suppressor uses diode assemblies, so it is polarity-sensitive and intended only for DC control circuits."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1936-1ER00","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/3RT1936-1ER00 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}}