The Square D KAL361501021 circuit breaker is a 3 pole, 600V rated device designed for industrial and commercial applications. With a maximum amperage of 150 A, this breaker is capable of handling heavy electrical loads and ensuring the safety of electrical circuits. The chipped characteristic of the product indicates that it may have been damaged during installation or storage, making it a potentially unreliable option for electrical systems needing a 150 amp breaker. It is recommended to carefully evaluate the condition and functionality of this circuit breaker before making a purchasing decision.