{"product_id":"square-d-9999st2-starter-transient-suppressor","title":"Square D 9999ST2 Starter Transient Suppressor","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SQUARE D 9999ST2 is a transient suppressor accessory designed for use with Type S enclosed motor starters. It clamps voltage spikes generated when inductive loads such as motor starter coils are de-energized, protecting sensitive control circuits from transient overvoltage events. Measuring 4.5 inches long, 3 inches wide, and 1.5 inches tall, the 9999ST2 is a compact, purpose-built component installed by licensed electricians during starter assembly or field service. At 0.15 pounds, it adds minimal weight to the enclosure assembly.\u003c\/p\u003e\n\u003cp\u003eThis transient suppressor is used in industrial and commercial electrical installations where Type S enclosed motor starters are deployed. It mounts directly within the Type S enclosure to provide inline transient protection at the starter coil. Typical applications include motor control panels, mechanical equipment rooms, and industrial control cabinets where coil-switching transients can cause nuisance tripping or damage to downstream control devices.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSuppresses inductive transients generated by motor starter coil switching\u003c\/li\u003e\n  \u003cli\u003ePurpose-built fit for Type S enclosure starters\u003c\/li\u003e\n  \u003cli\u003eCompact form factor: 4.5 x 3 x 1.5 inches\u003c\/li\u003e\n  \u003cli\u003eLightweight at 0.15 pounds for easy in-panel handling\u003c\/li\u003e\n  \u003cli\u003eOEM-style starter accessory for direct replacement or new installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with SQUARE D Type S enclosure motor starters as a direct-fit starter accessory.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified electrician in accordance with the NEC and applicable local codes. De-energize and lock out the starter panel before installing or replacing this suppressor. Verify that the enclosure type matches the Type S designation before installing. Do not energize the starter until the suppressor is fully seated and all connections are secure.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStarter Accessory Type\u003c\/strong\u003e: Transient Suppressor\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFor Use With\u003c\/strong\u003e: Type S Enclosure\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 4.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 3 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeight\u003c\/strong\u003e: 1.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.15 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: SQUARE D\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 9999ST2\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SCHNEIDER ELECTRIC","offers":[{"title":"Default Title","offer_id":51542906405170,"sku":"9999ST2","price":91.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/2561271eaae1b31e422ed5eb9a2a1334.jpg?v=1785910545","url":"https:\/\/voomisupply.com\/products\/square-d-9999st2-starter-transient-suppressor","provider":"Voomi Supply","version":"1.0","type":"link"}