SP365A-R2 - Black Box TELCO DATA-LINE SURGE PROTECTOR - 240VDC CLAMPING VOLTAGE, 75-AMP, RJ-11, 4-WIRE

Guard your fax machines, phones, and dialup modems.

- Protects against electrical surges and spikes.
- Low shunt capacitance to reduce signal loss.
- Standard clamping voltage is 240 volts.
- Protects two center wires.