This mechanical lug is a connection accessory is a PowerPacT Multistandard circuit breaker. This lug is for a 3 pole, PowerPacT L-Frame breakers. With a rated current of 250A, this lug is made of aluminum. The current-limiting attributes of PowerPact H-, J-, and L-frame circuit breakers provide greater protection for downstream devices by limiting the let-through current in the event of a fault. This product comes in a set of 3.