Adjustable length bus bridge for modular switchboard

A modular electrical distribution device for distributing electrical power in a facility, comprising:

• a generally rectangular frame;
• a line bus attached to the generally rectangular frame;
• and
• a bus bridge connected to the line bus, wherein the bus bridge has a length that is adjustable by up to a predefined minimum amount and a predefined maximum amount;
• wherein the bus bridge comprises a housing having a first housing section and a second housing section that slide relative to one another to adjust the length of the bus bridge, and a plurality of phase members housed within the housing, each phase member having a first busbar and a second busbar;
• and
• wherein sliding one of the first housing section or the second housing section back and forth also slides one of the first busbar or the second busbar of the plurality of adjustable length phase members back and forth together with one of the first housing section or the second housing section.

A method of electrically connecting adjacent electrical distribution devices, comprising:

• connecting a bus bridge to a first electrical distribution device;
• adjusting a length of the bus bridge sufficient to reach a second electrical distribution device adjacent to the first electrical distribution device;
• and
• connecting the bus bridge to the second electrical distribution device;
• wherein the bus bridge comprises:
• an adjustable length housing having a first housing section and a second housing section configured to slide toward and away from each other when assembled;
• a plurality of adjustable length phase members housed within the adjustable length housing, each adjustable length phase member spaced apart and parallel to an immediately adjacent adjustable length phase member;
• and
• an insulation barrier positioned in between adjacent adjustable length phase members, the insulation barrier electrically isolating the adjacent adjustable length phase members from one another;
• wherein each adjustable length phase member includes a first busbar and a second busbar that slide relative to one another within the adjustable length housing, and one of the first housing section or the second housing section is configured to slide back and forth together with one of the first busbar or the second busbar of the plurality of adjustable length phase members.