If an SPD fails, it fails safe, disconnecting the luminaire.
Failure of the KM-SP-T2+T3-320/Y-CLT-LED is also indicated by darkened display openings, to identify the failure in the case of disconnected power supply.
The SPD should be fitted as close as possible to the luminaire.
Comply with the requirements of IEEE (ANSI) C62.41.2 – C location – located externally.
The internal connections of the KM-DA-320-LED and KM-SP-T2+T3-320/Y-CLT-LED are symmetrical, meaning that if phase and neutral is crossed, this does not affect the SPD.
The SPDs can also be used where luminaires are connected between phases, provided that the Uc maximum operating voltage is not exceeded.
The KM-SP-T2+T3-320/Y-CLT-LED earth terminal is a lug. The screw connecting the lug to the PE conductor, could also be used to secure the SPD to the luminaire.
An auxiliary plastic adapter makes it possible to the SPD to a 35mm DIN rail (TH 35), provided that the latter is not equipped with a lug to connect to the PE conductor.