M-240 CdS NEMA Base PE Cell

The M Series features a ceramic substrate forms the base for the CdS. Visible on the surface of this substrate is a complicated electrode pattern with cold-welded cell terminal connections.

FEATURES

This design is employed to prevent changes in cell resistivity from causing oxidization which will in turn contribute to photo-control drift. The entire cell, including the terminal post connections, is then coated with a non-discolouring, UV resistant clear layer. This organic-based, semiconductor compatible coating provides additional protection from humidity, condensation and airborne contaminants. The unit is also fitted with a metal oxide resistor (MOV) designed to effectively clamp voltage surges that may otherwise damage the unit.

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