{"product_id":"eaton-hldb3400w-circuit-breaker","title":"Eaton | HLDB3400W | Circuit Breaker | 400A | 3-Pole | 600V","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Eaton HLDB3400W circuit breaker: a purpose-built solution for protection in demanding electrical systems. This 400A, 3-pole device is rated for 600V, making it a reliable choice for three-phase applications where robust current interruption and dependable performance are essential.\u003c\/p\u003e \u003cp\u003eKey specifications at a glance:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 400A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 600V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eReference for compatibility:\u003c\/strong\u003e Part number HLDB3400W\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this model stands out\u003c\/h3\u003e\n\u003cp\u003eThe HLDB3400W is designed for maintenance, retrofit, and replacement projects where exact specs matter. Instead of guessing compatibility, you can rely on the HLDB3400W part number as the best reference to ensure a precise match with your existing panel or distribution gear. This targeted compatibility helps you preserve original protection schemes and minimize downtime during upgrades or service work.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMaintenance of three-phase distribution panels that require a 400A, 3-pole, 600V protective device\u003c\/li\u003e \u003cli\u003eRetrofits where panel wiring and bus configurations demand exact spec alignment\u003c\/li\u003e \u003cli\u003eReplacement installs in facilities updating electrical infrastructure while maintaining system integrity\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhat problems it solves\u003c\/h3\u003e\n\u003cp\u003eFor facilities undergoing panel upgrades or service refreshes, the HLDB3400W provides a reliable, spec-matched protection solution that helps prevent unauthorized substitutions and compatibility issues. By sticking to the specified 400A, 3-pole, 600V parameters, you maintain consistent electrical protection across your distribution network and reduce the risk of mismatched components.\u003c\/p\u003e \u003ch3\u003ePractical considerations and tips\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eBefore ordering, verify that your panel, switchgear, or distribution board aligns with the 400A, 3-pole, 600V ratings and that HLDB3400W is the correct reference for your setup.\u003c\/li\u003e \u003cli\u003eUse the HLDB3400W part number as your primary compatibility check to avoid substitutions that don’t meet your system’s specifications.\u003c\/li\u003e \u003cli\u003eWhen planning a retrofit or maintenance install, have the existing protection scheme documentation on hand to confirm that this device will integrate with your current wiring and termination practices.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eDesigned for professionals who prioritize precision and reliability, the Eaton HLDB3400W circuit breaker delivers straightforward compatibility and solid performance in high-demand environments. It’s the practical, spec-focused choice for safeguarding three-phase, 600V systems where accurate replacement and maintenance are essential.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Eaton","offers":[{"title":"Default Title","offer_id":46426446004386,"sku":"HLDB3400W","price":2010.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_a085eff1-75dd-47ee-b131-4c8df8f0489b.png?v=1765492976","url":"https:\/\/www.ampstate.com\/products\/eaton-hldb3400w-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}