{"product_id":"a4-32","title":"A4.32  - Square D Thermal Unit","description":"\u003cp\u003e\u003cstrong\u003eA4.32  - Square D Thermal Unit\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe A4.32 Square D Thermal Unit is a precision-engineered overload protection device designed to guard electric motors and motor starters from prolonged overcurrent and heat damage. Crafted with a high-quality melting‑alloy mechanism, this compact thermal protector meets Class 20 tripping standards—ensuring a rapid response under overload conditions—making it perfect for demanding industrial and commercial settings. With a rugged one‑piece design and compatibility with NEMA sizes 00 to 7, this unit supports AC systems up to 600 V, delivering trusted performance wherever reliable motor safeguarding is essential.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features and Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass 20 fast‑acting trip:\u003c\/strong\u003e Activates within 20 seconds under overload to protect against overheating, locked rotor, and damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMelting‑alloy, heat‑activated mechanism:\u003c\/strong\u003e Smart, self‑resetting design ensures accurate response without complex circuitry.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne‑piece rugged construction:\u003c\/strong\u003e Simple to install and built to last, reducing downtime and maintenance costs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroad compatibility:\u003c\/strong\u003e Designed for NEMA Sizes 00–7, it integrates seamlessly with most motor starter and overload relay systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh voltage capacity (up to 600 V AC):\u003c\/strong\u003e Versatile enough for heavy industrial lines and commercial operations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Thermal Overload Unit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverload Mechanism:\u003c\/strong\u003e Melting Alloy\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrip Class:\u003c\/strong\u003e Class 20 (≤ 20 seconds)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e Up to 600 V AC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 2.28″ × 1.10″ × 0.79″ (L×W×H)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e Approx. 0.6 oz (18 g)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 18 months\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial Compliance and Certifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeets UL assembly standards\u003c\/strong\u003e (refer to manufacturer datasheet for full certification listings)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable internal heater coil and alloy materials\u003c\/strong\u003e designed for consistent thermal performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging not recycled,\u003c\/strong\u003e ensuring protection during shipping while conveying product integrity\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSuitability\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIdeal for electrical maintenance technicians, HVAC professionals, and automation integrators who manage motor loads that frequently start, stop, or experience overload.\u003c\/li\u003e\n\u003cli\u003ePair it with NEMA-rated motor starters and overload relays in industries spanning manufacturing, HVAC systems, pumping applications, and more.\u003c\/li\u003e\n\u003cli\u003eProvides rapid, reliable thermal protection in high-stress environments prone to heat and overcurrent events.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\u003cbr\u003e\n\u003cdiv\u003e\n\u003cblockquote\u003e\n\u003cp style=\"font-size: 12px;\"\u003e\u003cem\u003eUse of Original Equipment Manufacturer (OEM) trademarks, names, and logos is for informational and identification purposes only. This does not imply any affiliation, sponsorship, endorsement, or approval by the original equipment manufacturer. All trademarks and registered trademarks are the property of their respective owners.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"New","offer_id":50485779759403,"sku":"A4.32","price":0.0,"currency_code":"USD","in_stock":false},{"title":"Refurbished","offer_id":50485779792171,"sku":"A4.32 [R]","price":0.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0848\/0758\/1995\/files\/A432copy.png?v=1745464137","url":"https:\/\/store.circuitbreakersuperstore.com\/products\/a4-32","provider":"CIRCUIT BREAKER SUPERSTORE®","version":"1.0","type":"link"}