{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2936-1JK00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2936-1JK00","canonicalUrl":"https://aoctrl.com/siemens/3RT2936-1JK00","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2936-1JK00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS surge suppressor, varistor with LED, 48-127 V AC 50/60 Hz, 24-70 V DC, for contactors 3RT2.3 and 3RT2.4, clip-on mounting, 14.5 mm depth.","salesMarkdown":"The Siemens 3RT2936-1JK00 is a SIRIUS surge suppressor — a varistor with an integrated LED indicator — designed to clip onto S2 and S3 frame contactors in the 3RT2.3 and 3RT2.4 families. It suppresses voltage spikes across the coil, protecting the contactor's control circuit and extending contact life on inductive loads. This suppressor handles both AC and DC control voltages: 48 to 127 V AC at 50/60 Hz, and 24 to 70 V DC. That range covers the most common control voltages in European and North American panels — 48 V, 110 V, 120 V AC, and 24 V, 48 V DC — so one part number stocks across mixed-voltage cabinets. The LED gives a quick visual check that the suppressor is live and the coil circuit is energized. Clip-on fastening to the contactor, any mounting position. At 14.5 mm deep, 30 mm wide, and 30 mm tall, it adds negligible depth to the contactor assembly — no extra DIN rail space needed. Temperature range is -25 to +60 °C operating, -40 to +80 °C storage, so it's fine inside a standard IP20 control cabinet without derating concerns.","metaTitle":"Siemens 3RT2936-1JK00 SIRIUS Surge Suppressor, Varistor with","metaDescription":"Siemens SIRIUS 3RT2936-1JK00 surge suppressor, varistor with LED. Rated 48-127V AC 50/60 Hz, 24-70V DC. For S2, S3 contactors. Active production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"14.5mm","Width":"30mm","at DC":"24 ... 70V","title":"3RT2936-1JK00","Height":"30mm","at 50 Hz":"48 ... 127V","at 60 Hz":"127 ... 48V","description":"surge suppressor, varistor with LED, 48-127 V AC, 50/60 Hz, 24-70 V DC, for contactors 3RT2.3 and 3RT2.4","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":"Varistor with LED","Type Of Voltage Of The Control Supply Voltage":"AC/DC"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.87","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/bebbed380f4353f80118e08cdab27e70.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=382862&mlfb=3RT2936-1JK00"},"ai":{"faq":[{"question":"What contactors does this surge suppressor fit?","answer":"It is designed for S2 and S3 frame contactors in the Siemens 3RT2.3 and 3RT2.4 families. The clip-on fastening matches those specific contactor sizes."},{"question":"What are the voltage ratings?","answer":"48 to 127 V AC at 50/60 Hz, and 24 to 70 V DC. Both AC and DC control supply voltages are supported."},{"question":"Does it have a visual status indicator?","answer":"Yes, it is a varistor design with an integrated LED that shows the suppressor is powered and the coil circuit is live."},{"question":"What are the physical dimensions?","answer":"Depth 14.5 mm, width 30 mm, height 30 mm. It clips onto the contactor and does not consume additional DIN rail space."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2936-1JK00","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/3RT2936-1JK00 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}}