{"product_id":"glnp400400-glnp400400-400a-4p-circuit-breaker","title":"GLNP400400 GLNP400400 Circuit Breaker, 400A, 4-Pole","description":"\u003cdiv\u003e\n\u003cp\u003eThe GLNP400400 is a rugged circuit breaker designed for industrial electrical service, maintenance, and replacement projects. As a member of the GL series, this 400 A, 4-pole unit delivers dependable overcurrent protection in demanding environments, helping keep critical equipment online and safe.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eWhy this breaker stands out\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003e400 A, 4-pole design\u003c\/strong\u003e provides robust protection for multi-conductor systems, ideal for larger industrial feeds and 3-phase applications.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGL series compatibility\u003c\/strong\u003e ensures a predictable fit within GL-series panels and assemblies, simplifying procurement and installation.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication-focused performance\u003c\/strong\u003e engineered for service, maintenance, and replacement tasks to minimize downtime and maintain electrical reliability.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart-number–driven fit verification\u003c\/strong\u003e Use GLNP400400 to confirm compatibility for your specific application; verify fit by part number and your installation requirements.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eReal-world use cases\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eWhether you're upgrading equipment on an industrial line, replacing a failed breaker, or stocking spare parts for planned maintenance, the GLNP400400 provides consistent performance and dependable protection within the GL family. The 400 A rating is well-suited for protecting feeders and major loads in mid- to large-scale industrial setups, while the four-pole design supports safe isolation across multiple conductors.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003ePractical tips for success\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eDouble-check panel compatibility by confirming the exact GL part number: GLNP400400.\u003c\/li\u003e \u003cli\u003eWhen ordering, consider pairing this breaker with your existing GL-series equipment to ensure coordinated protection and compatible trip characteristics.\u003c\/li\u003e \u003cli\u003eNeed help confirming compatibility with your panel or application? Message us and we’ll assist with part-number matching and requirements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46414613414050,"sku":"GLNP400400","price":460.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_513d6710-3734-4b27-839d-f68e6f4b470a.png?v=1765492974","url":"https:\/\/www.ampstate.com\/products\/glnp400400-glnp400400-400a-4p-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}