{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1936-1CB00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1936-1CB00","canonicalUrl":"https://aoctrl.com/siemens/3RT1936-1CB00","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1936-1CB00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS surge suppressor, 3RT1936-1CB00, RC element design, for mounting onto Size S2 and S3 contactors, 24...48 V AC, 24...70 V DC.","salesMarkdown":"The Siemens SIRIUS 3RT1936-1CB00 is a surge suppressor with RC elements, designed for mounting onto Size S2 and S3 contactors. It handles control supply voltages of 24...48 V AC at 50 Hz and 48...24 V AC at 60 Hz, plus 24...70 V DC — so it covers mixed AC/DC control circuits in a single unit. The RC element snubs the coil's inductive kick, which keeps transients off the PLC output or control relay driving the contactor. The 24...48 V AC range at 50 Hz and 48...24 V AC at 60 Hz means the suppressor is designed for the standard control transformer secondaries found across European and North American panels. The DC range extending to 70 V covers 24 VDC control buses plus the higher nominal voltages (48 V, 60 V) sometimes used in longer cable runs. Because the RC element is a passive snubber, it draws negligible current in steady state — no thermal derating to worry about inside a crowded enclosure. The S2/S3 contactor frame sizes are the medium and large SIRIUS power contactors (roughly 45–70 mm wide), so this suppressor clips onto the contactor's coil terminals directly, not onto a DIN rail.","metaTitle":"Siemens 3RT1936-1CB00 SIRIUS surge suppressor, RC element, 2","metaDescription":"Siemens SIRIUS 3RT1936-1CB00 surge suppressor with RC elements for Size S2/S3 contactors. Rated 24-48 V AC, 24-70 V DC. Phased-out; successor 3RT2936-1CB00. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"at DC":"24 ... 70V","at 50 Hz":"24 ... 48V","at 60 Hz":"48 ... 24V","1 Rated Value":"50Hz","2 Rated Value":"60Hz","lifecycle_stage":"current","Product Brand Name":"SIRIUS","Product Designation":"surge suppressor","Design Of The Surge Suppressor":"with RC elements","Type Of Voltage Of The Control Supply Voltage":"AC/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=456404&mlfb=3RT1936-1CB00","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1936-1CB00/alternatives.json"},"ai":{"faq":[{"question":"What voltage ranges does the 3RT1936-1CB00 cover?","answer":"It covers 24...48 V AC at 50 Hz, 48...24 V AC at 60 Hz, and 24...70 V DC. This covers standard 24 V and 48 V control circuits in both AC and DC systems."},{"question":"What contactors does the 3RT1936-1CB00 fit?","answer":"It mounts onto Siemens SIRIUS Size S2 and S3 contactors. These are the medium and large frame sizes in the SIRIUS power contactor family."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1936-1CB00","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/3RT1936-1CB00 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}}