{"product_id":"square-d-hll36125-125a-600v-3-pole-circuit-breaker","title":"Square D HLL36125 - 125 A, 600 V, 3-Pole Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Square D HLL36125—a 125 A, 600 V, 3‑pole molded‑case circuit breaker engineered for dependable branch circuit protection in panelboards and load centers. Built by a trusted name in electrical protection, this unit delivers precise, repeatable performance when you need it most—whether you're wiring a home, a commercial space, or light industrial equipment.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCompact molded‑case design\u003c\/strong\u003e minimizes panel footprint while delivering robust protection, making it easier to fit multiple breakers in a dense panel configuration without sacrificing reliability.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal‑magnetic trip unit\u003c\/strong\u003e provides stable, repeatable protection for both overloads (thermal) and short circuits (magnetic), helping prevent nuisance trips and unplanned downtime.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM‑grade compatibility\u003c\/strong\u003e is designed to work with matching Square D load centers and panelboards, ensuring a clean fit, predictable performance, and simplified maintenance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile voltage and current rating\u003c\/strong\u003e supports a wide range of applications—125 A capacity at up to 600 V—making it suitable for 3‑phase distribution in residential, commercial, and light industrial environments.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e3‑pole construction\u003c\/strong\u003e ideal for protecting 3‑phase circuits and feeders, providing coordinated protection for motors, drives, and other three‑phase equipment.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this matters for your electrical system\u003c\/h3\u003e\n\u003cp\u003eThe HLL36125 is more than a breaker—it's a guardrail for your electrical infrastructure. The molded case design dissipates heat efficiently, helping maintain stable trip performance under varying load conditions. The thermal‑magnetic trip mechanism reacts quickly to short circuits while offering reliable overload protection, reducing the risk of equipment damage and protecting downstream devices like motors, lighting, and control panels.\u003c\/p\u003e \u003ch3\u003eUse cases and applications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eProtect 3‑phase feeders feeding motor starters, pumps, fans, and HVAC equipment in light commercial and industrial settings.\u003c\/li\u003e \u003cli\u003eInstall in panelboards where space efficiency and reliable protection are priorities, such as electrical closets, service panels, and utility rooms.\u003c\/li\u003e \u003cli\u003eIdeal replacement for aging or undersized breakers in compatible Square D panels, helping to restore protection to critical circuits.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTechnical specifications at a glance\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eManufacturer: Square D\u003c\/li\u003e \u003cli\u003ePart Number: HLL36125\u003c\/li\u003e \u003cli\u003eType: Thermal‑magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003eAmperage Rating: 125 A\u003c\/li\u003e \u003cli\u003eVoltage Rating: 600 V\u003c\/li\u003e \u003cli\u003eNumber of Poles: 3\u003c\/li\u003e \u003cli\u003eApplication: Branch circuit overcurrent and short‑circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation and compatibility notes\u003c\/h3\u003e\n\u003cp\u003eDesigned to pair with matching OEM Square D load centers and panelboards, this 3‑pole unit fits standard 3‑phase distribution setups and simplifies maintenance with familiar Square D interfaces. Before installation, verify that your panel is rated for 600 V and that a 3‑pole device aligns with the circuit layout you intend to protect. For best results, use only in panels that specify compatibility with HLL series molded‑case breakers to ensure correct bus contact, torque, and trip coordination.\u003c\/p\u003e \u003cp\u003eWhen you choose the Square D HLL36125, you’re selecting a rugged, purpose‑built solution that aligns with professional electrical standards and long‑term reliability. It’s a practical, ready‑to‑wire option for safeguarding critical circuits in a variety of environments, backed by Square D’s reputation and AmpState’s commitment to supplying dependable protective devices.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355300417698,"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_7cf05a4e-45c9-4bf8-84b5-300c3c0faeb3.png?v=1764691065","url":"https:\/\/www.ampstate.com\/products\/square-d-hll36125-125a-600v-3-pole-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}