{"product_id":"ge-tjk4k-400a-600v-bolt-on-circuit-breaker","title":"GE TJK4K - 400 A, 600 V Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the GE TJK4K 400A, 600V bolt-on molded case circuit breaker from AmpState. Designed to anchor panelboards and loadcenters, this unit delivers precise branch circuit overcurrent and short-circuit protection across residential, commercial, and light industrial environments. The secure bolt-on mounting creates a rigid, vibration-resistant bus connection, so you’re less likely to experience loose connections or nuisance trips in challenging installation conditions.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e: Provides a rigid, vibration-resistant bus connection that stays tight through temperature changes and equipment movement.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e: Combines thermal overload sensing with instantaneous magnetic trip for predictable, fast responses to short circuits and sustained overloads.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible\u003c\/strong\u003e: Engineered to pair with matching GE OEM loadcenters and panelboards for straightforward installation and dependable performance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eHigh-current, high-voltage protection\u003c\/strong\u003e: 400A rating at 600V supports large feeders and demanding circuits without compromising safety.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile application\u003c\/strong\u003e: Ideal for residential service upgrades, commercial distribution panels, and light industrial circuits requiring robust protection.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use scenarios\u003c\/h3\u003e\n\u003cp\u003eUse the GE TJK4K to protect heavy-load branch circuits, feeders feeding subpanels, or critical equipment in spaces like office suites, small warehouses, or multi-residential units. Its bolt-on design and thermal-magnetic trip behavior deliver consistent protection where panel integrity and reliable trip performance matter most.\u003c\/p\u003e \u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e GE\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e TJK4K\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage rating:\u003c\/strong\u003e 400A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 600V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting style:\u003c\/strong\u003e Bolt-on\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eIf you’re upgrading or configuring a new panel system, the GE TJK4K 400A\/600V bolt-on breaker offers a reliable, OEM-compatible solution that keeps electrical distributions safe and compliant. Available through AmpState for straightforward ordering and integration with GE panelboards and loadcenters.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349718257826,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/ge-tjk4k-400-a-600-v-bolt-on-circuit-breaker-ampstate-breakers-795.webp?v=1788715016","url":"https:\/\/www.ampstate.com\/products\/ge-tjk4k-400a-600v-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}