- 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 - Grounding Requirements Field-installed solid copper wire - Recommended Grounding Impedance 0 5 Ohm - Fuse Rating 350mA 1 6 Ohms - Signal Perfect Circuitry - Clamping Level 235V - Response Time 1-5 Nanoseconds - Capacitance 50pF - Suppression Modes Metallic and Longitudinal - Wires Protected 2-wires 1 pair - Termination Type 66 M Blocks
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