This is a used Eaton HKD3400F circuit breaker with a maximum amperage rating of 400 A. It is a 3-pole, single-phase device with a voltage rating of 600 V. The breaker is made of metal and has a white color. It measures 5.5 inches in height and 5.5 inches in width. The model is HKD3400F and it has a current rating of 400 A.
