{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2936-1BD00-ZX90","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2936-1BD00-ZX90","canonicalUrl":"https://aoctrl.com/siemens/3RT2936-1BD00-ZX90","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2936-1BD00-ZX90","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS surge suppressor, varistor type, 127-240V AC / 150-250V DC, for contactors size S2 and S3, clip-on mounting, 14.5mm depth.","salesMarkdown":"The Siemens SIRIUS 3RT2936-1BD00-ZX90 is a surge suppressor with varistor, designed to clip onto contactors of size S2 or S3. It suppresses voltage spikes across the coil terminals, protecting the contactor coil and nearby control electronics from inductive kickback when the coil de-energizes. Rated for 127-240V AC at 50 Hz and 150-250V DC, it covers the common control voltage ranges in European and North American panels. The varistor clamps the transient, not a series RC snubber — so it handles both AC and DC coils without the polarity sensitivity of a diode. At 14.5 mm deep, 30 mm wide, and 30 mm tall, this suppressor takes minimal DIN-rail space. It clips directly onto the contactor's front side — no separate mounting rail needed. The any-position mounting means it works in tight enclosures where orientation is constrained. The clip-on fastening method matches the SIRIUS S2 and S3 contactor frames. ## Environmental limits and sourcing posture The AC/DC voltage type means one part number covers both supply types — simplifies BOM management.","metaTitle":"Siemens SIRIUS 3RT2936-1BD00-ZX90 surge suppressor, 127-240V","metaDescription":"Siemens SIRIUS surge suppressor with varistor, 127-240V AC / 150-250V DC, for contactors size S2/S3. Active production. Clip-on mounting, 14.5mm depth. Source to order via RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"14.5mm","Width":"30mm","at DC":"150 ... 250V","title":"3RT2936-1BD00-ZX90","Height":"30mm","at 50 Hz":"127 ... 240V","at 60 Hz":"240 ... 127V","description":"SURGE SUPPRESSOR, VARISTOR, 127...240V AC, 150...250V DC, FOR CONTACTORS SIZE S2","1 Rated Value":"50Hz","2 Rated Value":"60Hz","During Storage":"-40 ... +80°C","lifecycle_stage":"current","During Operation":"-25 ... +60°C","Fastening Method":"clip-on","Mounting Position":"any","Size Of Contactor":"S2, S3","Product Brand Name":"SIRIUS","Product Designation":"surge suppressor","Design Of The Surge Suppressor":"with varistor","Type Of Voltage Of The Control Supply Voltage":"AC/DC"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/a790dcded5f2c364058a0b4629313461.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=29257&mlfb=3RT2936-1BD00-ZX90"},"ai":{"faq":[{"question":"What contactor sizes does this surge suppressor fit?","answer":"It fits SIRIUS contactors of size S2 and S3. It clips onto the front of the contactor and does not fit S0 or S00 frames directly."},{"question":"What voltage ranges does the 3RT2936-1BD00-ZX90 cover?","answer":"127-240V AC at 50 Hz and 150-250V DC. The varistor design handles both AC and DC control voltages without polarity concerns."},{"question":"What are the physical dimensions of this suppressor?","answer":"14.5 mm deep, 30 mm wide, and 30 mm tall. It mounts in any position and clips directly onto the contactor."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2936-1BD00-ZX90","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/3RT2936-1BD00-ZX90 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}