{"product_id":"siemens-hld63b400l-500a-600v-3-pole-bolt-on-circuit-breaker","title":"Siemens HLD63B400L - 500 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eSiemens HLD63B400L is a 3-pole bolt-on molded case circuit breaker engineered for dependable branch circuit overcurrent and short-circuit protection in panelboards and loadcenters. With a robust bolt-on mounting, this unit delivers a rigid, vibration-resistant connection to the bus, helping maintain consistent protection even in installations with equipment start-ups or panel movement.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e — provides a solid, vibration-resistant bus connection that stays tight over time.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e — combines thermal overload protection with magnetic short-circuit interruption for stable, repeatable protection performance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e3-pole design, 500 A, 600 V\u003c\/strong\u003e — true three-phase protection suitable for high-demand feeders in residential, commercial, and light industrial settings.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible\u003c\/strong\u003e — designed to pair with matching Siemens OEM loadcenters and panelboards, simplifying retrofits and new installations.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile application\u003c\/strong\u003e — protects branch circuits and downstream equipment, helping minimize downtime and equipment damage from fault currents.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eIdeal for installations where reliable, long-term circuit protection is essential. Whether you're upgrading a panel, building out a distribution system in a small commercial space, or equipping a light industrial electrical room, the HLD63B400L delivers dependable performance compatible with Siemens systems.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eTechnical snapshot\u003c\/strong\u003e:\u003c\/p\u003e \u003cul\u003e \u003cli\u003eManufacturer: Siemens\u003c\/li\u003e \u003cli\u003ePart Number: HLD63B400L\u003c\/li\u003e \u003cli\u003eType: Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003eAmperage rating: 500 A\u003c\/li\u003e \u003cli\u003eVoltage rating: 600 V\u003c\/li\u003e \u003cli\u003eNumber of poles: 3\u003c\/li\u003e \u003cli\u003eMounting style: Bolt-on\u003c\/li\u003e \u003cli\u003eApplication: Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349810466978,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens_breaker_and_panel_9db208fe-1859-413d-9fca-3b0fcfcd8388.png?v=1764157476","url":"https:\/\/www.ampstate.com\/products\/siemens-hld63b400l-500a-600v-3-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}