This is a Cutler Hammer FD3050L circuit breaker with a bolt-on mounting style and thermal interruption type. It has a maximum amperage rating of 50 A and a current rating of 41-50 A. The breaker is white in color and has three phases. It operates using an on/off method and has tripping characteristics of Type C.
This main breaker has a control style of a switch and a break time of time-delay (long) and instantaneous. It has a contact configuration of triple pole single throw (3PST) and is designed for use with AC/DC current. The voltage rating is between 201-250 V and 551-600 V. The package includes one circuit breaker with a height of 6 in and a width of 4 in. Features of this breaker include thermal overload protection.