{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1936-1TS00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1936-1TS00","canonicalUrl":"https://aoctrl.com/siemens/3RT1936-1TS00","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1936-1TS00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS, surge suppressor with diode assemblies, 3RT1936-1TS00, 30-250V DC, for S2/S3 contactors, phased-out product.","salesMarkdown":"The Siemens SIRIUS 3RT1936-1TS00 is a DC surge suppressor with diode assemblies, designed to plug into the bottom of S2 and S3 contactor sizes. It handles control supply voltages from 30 to 250 V DC, suppressing inductive kickback from the contactor coil on DC control circuits — a common requirement on panels with 24 V, 48 V, 110 V or 220 V DC control buses. This part is marked as a phased-out product. Siemens lists the official successor as the SIRIUS 3RT2936-1ES00, which is the preferred replacement. ## What the DC Voltage Range Means The 30 to 250 V DC range covers the standard DC control voltages found across industrial panels — 24 V is below the floor, so this suppressor won't activate on a 24 VDC coil circuit. It's sized for 48 V, 110 V, 125 V, and 220 V DC control buses where the diode assembly clips the voltage spike when the coil de-energizes, protecting the PLC output or relay contact that drives it. ## Panel Integration The suppressor plugs into the bottom of S2 or S3 contactors — no wiring needed beyond seating it onto the contactor's coil terminals. It occupies no additional DIN-rail space, which matters when the panel is already dense. The diode assembly is polarity-sensitive; verify the DC supply orientation before seating the module.","metaTitle":"Siemens 3RT1936-1TS00 SIRIUS Surge Suppressor, 30-250V DC","metaDescription":"Siemens SIRIUS 3RT1936-1TS00 surge suppressor with diode assemblies, 30-250V DC, for S2/S3 contactors. Phased-out — successor 3RT2936-1ES00 available. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"at DC":"30 ... 250V","lifecycle_stage":"current","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=109818&mlfb=3RT1936-1TS00","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1936-1TS00/alternatives.json"},"ai":{"faq":[{"question":"What replaces 3RT1936-1TS00?","answer":"The Siemens SIRIUS 3RT2936-1ES00 is the designated successor. It should drop into the same S2/S3 contactor footprint and cover the same DC voltage range."},{"question":"What is the DC voltage range for 3RT1936-1TS00?","answer":"It is rated for 30 to 250 V DC control supply voltage. Note that 24 V DC is below the minimum threshold, so it will not suppress on 24 V coils."},{"question":"Where can I buy 3RT1936-1TS00?","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":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1936-1TS00","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/3RT1936-1TS00 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}}