YA150HD is a PowerPact H-FRAME molded case circuit breaker, 150A, compression lug kit. This lug is for a unit mount and is made of aluminum. Certified to CSA & UL Standards. The PowerPact H-, J-, and L-frame circuit breakers are designed to protect electrical systems from damage caused by overloads and short circuits. Both copper and aluminum compression lug kits are available for the H-, J-, and L-frame circuit breakers. Each kit contains required insulators and all mounting hardware. Compression lugs require the long lug cover pack. The PowerPact Advantage. Proven Performance, Industry-leading circuit breaker innovation and protection for heavy-duty commercial and industrial applications. Smart, Integrated metering options provide a cost-effective solution to reduce energy consumption, optimize energy costs, and improve energy availability for your facilities. Flexible, Full range of thermal-magnetic and electronic trip molded case circuit breakers from 15 A to 3000 A, delivering the ratings, configurations, and operators for your unique applications. Simple, Common catalog numbers, standardized ratings, and a full range of field-installable accessories make product selection, installation and maintenance easier than ever. Common Design Features, Mounting holes, door trim, and handle accessories.