{"product_id":"square-d-hga36125-125a-600v-3-pole-plug-in-circuit-breaker","title":"Square D HGA36125 - 125 A, 600 V, 3-Pole Plug-In Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eIntroducing the Square D HGA36125 – a 125 A, 600 V, 3‑pole plug‑in molded case circuit breaker engineered for dependable branch circuit protection in panelboards and load centers. Designed for fast installation and enduring performance, this device combines a plug‑in connection with a thermal‑magnetic trip mechanism to deliver precise, repeatable protection in demanding electrical environments.\u003c\/p\u003e \u003ch2\u003eWhy the HGA36125 stands out\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFast plug‑in installation\u003c\/strong\u003e and streamlined replacement reduce downtime during upgrades or service calls, keeping panels online when it matters most.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal‑magnetic trip unit\u003c\/strong\u003e delivers stable overload protection plus instantaneous short‑circuit response, maintaining system integrity across temperature changes and load conditions.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e125 A at 600 V\u003c\/strong\u003e capacity is ideal for higher‑demand branch circuits in residential, commercial, and light industrial applications.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e3‑pole configuration\u003c\/strong\u003e supports 3‑phase systems and common panelboard layouts, enabling reliable protection for motors, MCCs, and other 3‑phase equipment.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCompatibility with matching OEM load centers and panelboards\u003c\/strong\u003e ensures a seamless integration when updating or expanding existing installations.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePlug‑in mounting\u003c\/strong\u003e simplifies servicing and future expansion, reducing labor time and risk of wiring mistakes.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWho should consider this breaker\u003c\/h2\u003e\n\u003cp\u003eElectrical professionals, facility managers, and homeowners undertaking panel modernization or new installations will appreciate the HGA36125’s robust protection and straightforward compatibility. It’s particularly well suited for panels that require reliable 3‑pole protection in 3‑phase distribution, HVAC equipment feeds, and other higher‑amperage circuits common in light commercial settings.\u003c\/p\u003e \u003ch2\u003eKey specifications at a glance\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer\u003c\/strong\u003e: Square D\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number\u003c\/strong\u003e: HGA36125\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: 125 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating\u003c\/strong\u003e: 600 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles\u003c\/strong\u003e: 3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting style\u003c\/strong\u003e: Plug‑in\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Branch circuit overcurrent and short‑circuit protection for panelboards and load centers\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003ePractical use cases and benefits\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eUpgrade an aging panel to improve reliability and trip accuracy with a modern thermal‑magnetic unit designed for consistent performance across ambient conditions.\u003c\/li\u003e \u003cli\u003eReplace a failed 3‑pole breaker in Square D load centers, restoring protection for three‑phase feeders without rewiring or extensive panel modifications.\u003c\/li\u003e \u003cli\u003eProtect critical equipment—such as large motors or HVAC drives—by providing robust short‑circuit protection and controlled nuisance tripping behavior.\u003c\/li\u003e \u003cli\u003ePlan future expansions with confidence; the plug‑in design enables quick additions or substitutions as your electrical system evolves.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy this matters in real‑world installations\u003c\/h2\u003e\n\u003cp\u003eIn panelboards and load centers, correct protection means fewer nuisance trips, safer operation, and longer equipment life. The HGA36125’s 3‑pole configuration and 125 A rating align with common commercial and light industrial circuits, while the 600 V rating broadens compatibility with higher‑voltage feeders. The combination of a plug‑in connection and a thermal‑magnetic trip unit translates to faster service, precise protection, and reliable performance when it counts most.\u003c\/p\u003e \u003ch2\u003eMaintenance and care\u003c\/h2\u003e\n\u003cp\u003eInstallations should follow local electrical codes and be performed by qualified personnel. Once installed, the thermal‑magnetic mechanism provides predictable trip behavior, and routine panel inspections should include verifying clear bus connections and ensuring the plug‑in contacts remain clean and free of corrosion for optimal conductivity.\u003c\/p\u003e \u003cp\u003eChoose the Square D HGA36125 for dependable, high‑performance protection in panelboards and load centers. It delivers a tangible combination of fast installation, precise protection, and lasting compatibility that professionals rely on for safer, more efficient electrical systems. AmpState offers this unit as part of a comprehensive lineup of Square D protective devices to keep your paneling projects moving forward.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355279511714,"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_96cfac9d-5c09-41db-a224-dd07b8fc0218.png?v=1764690875","url":"https:\/\/www.ampstate.com\/products\/square-d-hga36125-125a-600v-3-pole-plug-in-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}