PowerPactT H-, J- and L-frame circuit breakers are designed to protect electrical equipment from damage caused by overloads and short circuits. H- and J-frame circuit breakers are available with either thermal-magnetic or electronic MicrologicT trip units. L-frame circuit breakers are available with electronic Micrologic trip units only. H- and J-frame circuit breakers with thermal-magnetic trip units contain individual thermal (overload) and instantaneous (short circuit) sensing elements in each pole. Thermal trip unit current ratings are calibrated at 40°C (104°F) ambient temperature. PowerPact H-, J- and L-frame circuit breakers offer high performance and a wide range of interchangeable trip units to protect most applications. Electronic trip units provide highly accurate protection with wide setting ranges and can incorporate metering, counting and communication functions. They can be combined with the front display module (FDM121) to obtain similar functions as a power meter. These devices are much more than just a circuit breaker. They are a measurement and communication tool ready to meet energy efficiency requirements through optimized power consumption, increased energy availability and improved installation management. This PowerPact Multistandard, mechanical lug is a connection accessory for PowerPact J-Frame and has a rated current of 150-175 A and is made of aluminum.