Towermax - Towermax CO 4X4
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This is an add-on module for the Towermax 4 or 8 KSU base modules. This unit allows you to protect 4 central office lines via RJ-11/45 connectors.
The unit features auto-resetting technology, PTC resistors open when a surge occurs, but once the surge has passed, they close again!
This unit measures 4.25" X 4.25" X 1.5". The unit protects pins 4-5 on each of the 4 inputs (total 4 lines protected), and is UL/CSA approved. Four 7 ft phone cords are included. The clamping level is 260V, and capacitance is about 50pf.