{"product_id":"square-d-ejb16030-30a-347v-1-pole-bolt-on-circuit-breaker","title":"Square D EJB16030 - 30 A, 347 V, 1-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eSquare D EJB16030\u003c\/strong\u003e is a 30A, 347V, 1-pole bolt-on molded case circuit breaker designed to deliver reliable branch circuit overcurrent and short-circuit protection inside panelboards and load centers. Built for steady performance in residential, commercial, and light industrial applications, this device combines a rugged mounting method with precise protection characteristics to keep electrical systems safe and you up and running.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e: Provides a rigid, vibration-resistant connection to the bus, reducing the risk of loosening and ensuring stable electrical contact in environments with equipment movement.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e: Delivers stable, repeatable protection by responding to both sustained overcurrent and instantaneous short-circuit conditions, even as ambient temperatures fluctuate.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e OEM-compatible design\u003c\/strong\u003e: Engineered to pair with matching Square D OEM load centers and panelboards for straightforward replacement and dependable electrical fitment.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile 30A protection\u003c\/strong\u003e: Ideal for protecting individual circuits in lighting, receptacle runs, small feeders, and control circuits without overprotecting downstream equipment.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBroad suitability\u003c\/strong\u003e: Ready for residential panels, commercial spaces, and light industrial installations that use 347V distribution schemes.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Square D\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e EJB16030\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 30 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 347 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eNumber of Poles:\u003c\/strong\u003e 1\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\u003eThis breaker is purpose-built to minimize nuisance trips while delivering dependable protection when it matters most. The bolt-on installation makes it a practical choice for service upgrades, panelboard refurbishments, or new installations where a secure, vibration-resistant connection is crucial. The combination of a thermal-magnetic trip unit and a 30A rating ensures reliable discrimination between harmless inrush currents and dangerous fault conditions, helping protect wiring, devices, and downstream equipment.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eWho should consider the Square D EJB16030?\u003c\/strong\u003e Electricians, facility managers, and contractors working with panelboards or load centers configured for 347V systems will find this breaker a precise, compatible match for protecting individual circuits in commercial spaces, light industrial facilities, or residential panels where 30A protection is appropriate.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003ePractical use scenarios\u003c\/strong\u003e include upgrading a panelboard to add a dedicated 30A circuit for a high-load appliance, protecting a lighting and receptacle run in a small commercial suite, or replacing an aging breaker in a compatible OEM panel center where bolt-on mounting is standard. With its robust mounting and reliable thermal-magnetic protection, this unit helps maintain safe, continuous operation across diverse applications.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355207389346,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/schnieder_and_square_d_breaker_and_panel_c8b264ad-174d-4ff6-bada-961b2c7fb1ec.png?v=1764690363","url":"https:\/\/www.ampstate.com\/products\/square-d-ejb16030-30a-347v-1-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}