ITW Linx 66 ULTRON Block Surge Protector

66 ULTRON Block from ITWLinx features analog and digital voice block surge protectors with Sneak Current Protection, which protects against fires caused by overloads and power crosses. The Single Pair Protection method protects only the lines requiring protection. The Solid-state Protection automatically resets without user intervention and provides the fastest response to transient voltages by quickly diverting damaging surges to ground. They utilize 160mA self-resetting PTC's to eliminate service calls.