{"product_id":"industrial-hkl3400","title":"Industrial HKL3400 400A 3-Pole 600 V Circuit Breaker Potential Transformer","description":"\u003cdiv\u003e\n\u003cp\u003eThe Industrial HKL3400 is a rugged, purpose-built circuit breaker designed for demanding 3‑phase power distribution. With a \u003cstrong\u003e400 A\u003c\/strong\u003e current rating, a \u003cstrong\u003e3-pole\u003c\/strong\u003e configuration, and a \u003cstrong\u003e600 V\u003c\/strong\u003e maximum voltage, this device provides reliable, coordinated protection for heavy loads in industrial environments. Listed as Part Number \u003cstrong\u003eHKL3400\u003c\/strong\u003e, it’s the precise choice for replacement, upgrade, or new installations in power cabinets and motor control centers.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCurrent rating:\u003c\/strong\u003e \u003cstrong\u003e400 A\u003c\/strong\u003e — supports high-load feeders with adequate fault-current capacity.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e \u003cstrong\u003e3\u003c\/strong\u003e — true three-phase protection, ensuring simultaneous disconnection of all phases for safer fault clearance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e \u003cstrong\u003e600 V\u003c\/strong\u003e AC — compatible with standard industrial distribution systems and motor circuits up to 600 V.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e HKL3400 — clear, traceable identification for procurement, stocking, and service records.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication scope:\u003c\/strong\u003e Protects large motors, feeders, and critical equipment across factories, manufacturing lines, and process facilities.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eProtection coordination:\u003c\/strong\u003e Designed to integrate with protection relays and metering arrangements, including setups that utilize potential transformers for measurement and control.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhy this HKL3400 model stands out: it delivers comprehensive three-phase protection in a compact footprint, reducing the risk of phase imbalance and equipment damage during faults. Its 600 V rating makes it suitable for a wide range of industrial power architectures, while the 3‑pole design simplifies panel wiring and modernization projects. The HKL3400 is built for reliability in environments where uptime matters and quick, predictable fault clearing is non-negotiable.\u003c\/p\u003e \u003cp\u003ePractical use cases and guidance:\u003c\/p\u003e \u003cul\u003e \u003cli\u003eInstall as a primary protection device in 3‑phase feeders feeding large motors, conveyors, or pumps.\u003c\/li\u003e \u003cli\u003eUpgrade existing panels to a higher-current, three-pole solution to improve fault handling and safety margins.\u003c\/li\u003e \u003cli\u003eCoordinate with protective relays and, where applicable, potential transformer-based metering to monitor system health and trigger protective actions accurately.\u003c\/li\u003e \u003cli\u003eEnsure correct matching with conductors and bus ratings to fully leverage the 400 A capacity and 600 V compatibility.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Industrial","offers":[{"title":"Default Title","offer_id":46423126868130,"sku":"HKL3400","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/industrial-hkl3400-400a-3-pole-600-v-circuit-breaker-potential-874.webp?v=1789272975","url":"https:\/\/www.ampstate.com\/products\/industrial-hkl3400","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}