Modular Housing for a transfer switch

A transfer switch arrangement comprising:

• a base having a first section and a second section;
• an intermediate member removably coupled to the base;
• a first housing section that cooperates with the first section of the base and the intermediate member to define a first compartment;
• a second housing section that cooperates with the second section of the base and the intermediate member to define a second compartment;
• power transfer switching components interconnected with and carried by at least one of the first housing section and the second housing section;
• and
• at least a pair of fasteners, wherein a first one of the fasteners secures the base, the intermediate member and the first housing section together, and wherein a second one of the fasteners secures the base, the intermediate member and the second housing section together.

In a power transfer device for supplying power from an auxiliary power source to an electrical system of a building, wherein the power transfer device includes a housing and a series of switches mounted to the housing and interconnected with the building electrical system, the improvement comprising:

• a base defined by the housing;
• a first section defined by the housing which overlies and cooperates with a first area of the base to form a first exterior portion of the housing that defines a first internal cavity, wherein the switches are mounted to a front wall defined by the first section of the housing;
• a second section defined by the housing and engageable with the base, wherein the second section overlies and cooperates with a second area of the base spaced from the first area of the base, and that cooperates with the second area of the base to form a second exterior portion of the housing that defines a second internal cavity;
• wherein the base, the first section and the second section cooperate to define an exterior of the housing;
• a divider located between and separating the first internal cavity and the second internal cavity, wherein the first and second internal cavities are separate from each other with the divider located therebetween;
• one or more lead wires interconnected with and extending from the switches, wherein the lead wires extend through the first internal cavity and the divider and define ends extending into the second internal cavity;
• a power input connected to the lead wire ends within the second internal cavity for establishing an electrical connection between the auxiliary power source and the switches;
• and
• wherein the second section of the housing is removable from the base and is configured to selectively enclose the second internal cavity for preventing access to the ends of the lead wires.