{"product_id":"industrial-21-d156tfk","title":"Industrial 21-D156TFK 250A 600 V Circuit Breaker","description":"\u003cdiv\u003e\n\u003cp\u003eIndustrial 21-D156TFK 250A 600 V Circuit Breaker is designed to deliver dependable protection for demanding electrical systems. With a 250 A current rating and a 600 V maximum voltage, this device acts as the first line of defense for feeders, panels, and critical machinery in busy industrial environments. Its precise ratings help you prevent overloads and fault currents from cascading into downtime, equipment damage, or safety risks.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 21-D156TFK\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCurrent rating:\u003c\/strong\u003e 250 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 600 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication type:\u003c\/strong\u003e Industrial circuit protection for electrical distribution and machinery circuits\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal applications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003ePower distribution panels and switchboards in manufacturing facilities\u003c\/li\u003e \u003cli\u003eFeeder circuits protecting large loads such as conveyors, pumps, and HVAC sections\u003c\/li\u003e \u003cli\u003eMachine control panels and service entrances where robust interruption protection is required\u003c\/li\u003e \u003cli\u003eSpare-part compatible installations that rely on the 21-D156TFK model for ongoing maintenance and replacement\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this model stands out\u003c\/h3\u003e\n\u003cp\u003eThe 21-D156TFK is a purpose-built industrial circuit breaker that aligns with systems designed for high reliability and consistent performance. Choosing the exact part number fosters compatibility with existing panels and legacy equipment, helping you minimize downtime during maintenance and replacements. The 250 A rating targets mid-to-high current circuits, while the 600 V rating supports typical industrial distribution networks—providing capable protection without over-specifying. This translates to a balanced combination of protection, predictability, and inventory compatibility for facilities that depend on steady, safe operation.\u003c\/p\u003e \u003ch3\u003ePractical use and maintenance tips\u003c\/h3\u003e\n\u003cp\u003eFor best results, match this breaker to the original specifications of your electrical system. Ensure installation follows local electrical codes and is performed by a qualified electrician. When ordering replacements or spares, using the exact 21-D156TFK model helps preserve electrical characteristics and ensures seamless compatibility with existing panels and bussing configurations. Regularly inspect for signs of wear, corrosion, or arcing on connections, and plan proactive replacements to reduce the risk of unexpected outages.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Industrial","offers":[{"title":"Default Title","offer_id":46423603019938,"sku":"21-D156TFK","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/industrial-21-d156tfk-250a-600-v-circuit-breaker-536.webp?v=1789319600","url":"https:\/\/www.ampstate.com\/products\/industrial-21-d156tfk","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}