PT2 Series models are housed in a compact, plastic, hermetically sealed housing that ensures weatherproof protection for outdoor and indoor installations. Color-coded wiring conforms to US and International standards and convenient pigtail design makes installation flexible and easy. Thermal disconnects and fusing for each MOV plus a sand-filled enclosure permit benign end-of-life mode during sustained line overvoltage conditions, thus eliminating smoke and fire damage to adjacent equipment.