Surge protective device assembly modules

A surge protective device (SPD) assembly module comprising:

• an environmentally sealed polymeric outer enclosure;
• an SPD module disposed in the polymeric outer enclosure, the SPD module comprising:
• a housing electrode comprised of an end wall and a sidewall having a planar contact surface opposite the end wall;
• an end cap disposed against the planar contact surface defining a chamber;
• an inner electrode at least partially disposed in the chamber, the inner electrode spaced apart from the sidewall, the inner electrode member having a portion at least partially extending through the end cap;
• at least one varistor interposed between and electrically connected to each of the housing electrode and inner electrode;
• and,
• an electrically conductive meltable member disposed in the chamber and surrounding the inner electrode, the meltable member configured to melt responsive to heat in the SPD module thereby forming an electrical short circuit path between the housing electrode and the inner electrode;
• a terminal busbar electrically connected to the inner electrode comprised of a first terminal and a second terminal, the first and second terminals extending outward from opposite sides of the polymeric outer enclosure;
• a terminal bracket electrically connected to the housing electrode;
• and,
• an electrical cable connected to the terminal bracket, the electrical cable extending outward from the polymeric outer enclosure.