Schneider Electric KEL-PC642C-008-LC DATA PROTECTOR, 8V, LOW CAP

The PC642C Series Data Line Surge Suppressor is a dual-pair (four wire) and the DRS Series Surge Suppressor is a single pair (two-wire) DIN rail mount module implementing three-stage hybrid technology. These modules are used in Building Automation Systems, BAS, to protect against over-voltage transients with gas tubes and silicon avalanche components. In addition, it provides surge protection against sneak and fault currents with automatic resetting fuses (PTCs). The PTCs increase resistance several orders of magnitude when over currents are present and return to normal when over-currents are removed. The ability to self-restore in this manner significantly increases suppressor performance and survivability.