66 Block Primary or Secondary 235V Surge Protector
UL Primary and Secondary listed with 350mA fuse for voice/fax/modem line (235V)
Dual Indicator Lights: Protection OK and Ground Connection OK
Solid-State Protection
Single Pair Protection: Protect only the lines requiring protection
Ideal for Retrofit Applications: Just remove the bridging clips from the block and replace them with the Protector, add the ground connection, and the pair is connected