{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2926-1CD00-ZX90","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2926-1CD00-ZX90","canonicalUrl":"https://aoctrl.com/siemens/3RT2926-1CD00-ZX90","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2926-1CD00-ZX90","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS surge suppressor, 3RT2926-1CD00-ZX90, RC coupling, AC 127-240V / DC 150-250V, for S0 contactors, multi-unit packaging.","salesMarkdown":"## Surge Suppressor for SIRIUS S0 Contactors The Siemens 3RT2926-1CD00-ZX90 is a surge suppressor with RC elements, designed to clip onto SIRIUS contactors of size S0. It handles a control supply voltage range of AC 127-240 V and DC 150-250 V, making it suited for both AC and DC coil circuits found in mixed-voltage panels. The voltage ranges — AC 127-240 V and DC 150-250 V — define the coil-supply window the suppressor will clamp transients across. If your contactor coil is driven from a 230 V AC control transformer or a 220 V DC bus, this unit covers both without a separate variant. The RC (resistor-capacitor) design reduces electromagnetic emissions from the coil, which is useful when the contactor shares a panel with sensitive electronics like a PLC or VFD. Physical fit is specific to SIRIUS size S0 contactors. The suppressor clips onto the contactor's coil terminals, adding 12 mm depth, 30 mm width, and 19 mm height to the assembly. It mounts in any position and fastens via the clip-on method, so no additional DIN-rail space is consumed. ## Integration Notes The 3RT2926-1CD00-ZX90 clips directly onto the contactor coil connection, so no separate mounting or wiring to the panel is needed. The RC elements are pre-wired inside the suppressor package — just snap it onto the contactor's coil terminals and the suppression circuit is in parallel with the coil. This saves panel space compared to a panel-mounted RC network.","metaTitle":"Siemens 3RT2926-1CD00-ZX90 SIRIUS Surge Suppressor, RC, AC/D","metaDescription":"Siemens SIRIUS 3RT2926-1CD00-ZX90 surge suppressor with RC elements for S0 contactors. AC 127-240V / DC 150-250V. Active production. Clip-on mounting. Multi-unit packaging.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"12mm","Width":"30mm","at DC":"150 ... 250V","Height":"19mm","at 50 Hz":"127 ... 240V","at 60 Hz":"240 ... 127V","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":"S0","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=167637&mlfb=3RT2926-1CD00-ZX90","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT2926-1CD00-ZX90/alternatives.json"},"ai":{"faq":[{"question":"What is the closest alternative if this part is not available?","answer":"The 3RT2926-1CD00-ZX90 is a surge suppressor specific to SIRIUS size S0 contactors. A direct functional alternative would be another SIRIUS RC suppressor for S0, such as the 3RT2926-1CD00 (without the -ZX90 multi-unit packaging suffix). The -ZX90 indicates multi-unit packaging; the electrical and mechanical fit is identical to the standard 3RT2926-1CD00."},{"question":"Will this drop into a panel wired for the 3RT1016-2AP02 contactor?","answer":"No. The 3RT1016-2AP02 is a size S00 power contactor with a different physical footprint. The 3RT2926-1CD00-ZX90 is designed for size S0 contactors. The clip-on mechanism and terminal spacing differ between S00 and S0 frames, so it will not fit without changing the contactor."},{"question":"What are the key physical dimensions?","answer":"Depth 12 mm, width 30 mm, height 19 mm. It mounts by clipping onto the contactor coil terminals, so it does not require additional DIN-rail space."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2926-1CD00-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/3RT2926-1CD00-ZX90 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}}