{"product_id":"eaton-hmdl3400-600v-3-pole-circuit-breaker","title":"Eaton HMDL3400 - 600 V, 3-Pole Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Eaton HMDL3400 — a 600V, 3-pole molded case circuit breaker designed to protect your panels with precision and reliability. Built for dependable branch circuit overcurrent and short‑circuit protection, it fits seamlessly into panelboards and loadcenters in residential, commercial, and light industrial settings.\u003c\/p\u003e \u003ch3\u003eWhy this breaker stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCompact molded case design\u003c\/strong\u003e saves panel space while delivering robust protection, helping you fit more circuits into the same footprint.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal‑magnetic trip unit\u003c\/strong\u003e provides stable, repeatable protection by responding to both sustained overloads and sudden short circuits, reducing nuisance trips and improving reliability.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM‑level compatibility\u003c\/strong\u003e engineered to match Eaton loadcenters and panelboards, ensuring a clean, dependable fit and streamlined installations.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e600V capability\u003c\/strong\u003e supports higher‑voltage, multi‑purpose electrical systems, making it suitable for a range of commercial and light industrial applications without compromising safety.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThree‑pole configuration\u003c\/strong\u003e ideal for three‑phase installations or multi‑wire branch circuits where coordinated protection is essential.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhat problems it solves\u003c\/h3\u003e\n\u003cp\u003eThe HMDL3400 delivers precise overcurrent protection to prevent insulation damage, fire risk, and equipment failure caused by faults or overloads. Its compact form minimizes panel congestion, while the thermal‑magnetic trip unit reduces nuisance trips, keeping critical circuits energized and systems running smoothly.\u003c\/p\u003e \u003ch3\u003eTechnical snapshot\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Eaton\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e HMDL3400\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Thermal‑magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 600V\u003c\/li\u003e \u003cstrong\u003ePoles:\u003c\/strong\u003e 3 \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Branch circuit overcurrent and short‑circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eResidential panelboards where space and reliability are priorities\u003c\/li\u003e \u003cli\u003eCommercial distribution panels needing robust, consistent protection\u003c\/li\u003e \u003cli\u003eLight industrial electrical rooms requiring dependable short‑circuit response\u003c\/li\u003e \u003cli\u003eUpgrades or replacements in OEM loadcenters where compatibility matters\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical tips for installation and pairing\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003ePair the HMDL3400 with compatible Eaton OEM loadcenters and panelboards to ensure a seamless fit and predictable trip characteristics.\u003c\/li\u003e \u003cli\u003eAssess your circuit layout to take advantage of the 3‑pole design for three‑phase or multi‑wire configurations, enabling coordinated protection across critical loads.\u003c\/li\u003e \u003cli\u003eUse in panels where space is at a premium, but you still need reliable protection against both overloads and short circuits.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349616939170,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/eaton_breaker_and_panels_fb0ddbfa-0b37-4461-9471-645854406881.png?v=1764151495","url":"https:\/\/www.ampstate.com\/products\/eaton-hmdl3400-600v-3-pole-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}