{"product_id":"abb-st203m-k4-soft-starter-3-phase-motor-controller","title":"ABB ST203M-K4 Soft Starter 3-Phase Motor Controller","description":"\u003cdiv\u003e\u003cp\u003eABB ST203M-K4 is a three-pole miniature circuit breaker (MCB) in ABB’s ST-compatible line, engineered to protect 3-phase circuits in low-voltage installations with a rated current of 4 A. Configured for a 480Y\/277V AC supply, it delivers up to 10 kA short-circuit interrupting capacity and uses a K-curve tripping characteristic suitable for circuits with moderate inrush, making it appropriate for protecting motor feeds and other automated loads in control panels. Listed to UL 1077 as a supplementary protector, the ST203M-K4 provides reliable overload and short-circuit protection in a compact package that fits standard industrial distribution boards. Typical applications include safeguarding motor control panels, machine mains, and other 3-phase equipment where precise current protection and fast disconnection are required, aligning with ABB’s engineering standards for safe, responsive electrical protection.\u003c\/p\u003e\u003c\/div\u003e","brand":"ABB","offers":[{"title":"New","offer_id":51656721236270,"sku":null,"price":151.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_71a27077-56ed-454e-acd7-41c657caeac0.jpg?v=1769462935","url":"https:\/\/plgautomation.com\/products\/abb-st203m-k4-soft-starter-3-phase-motor-controller","provider":"PLG Automation ","version":"1.0","type":"link"}