KL9540, KL9550 - Surge Filter Terminals

KL9540-0000 - introduction

 
 kl9540-0000_intro
KL9540

Surge filter terminals for field supply

The KL9540-0000 surge filter terminal contains an overvoltage filter for the field supply. The filter protects the components from line-bound surge voltages that can occur due to high-energy disturbance variables such as switching surges at inductive consumers or lightning strikes at the supply lines.

LED displays

LED
Meaning
Power (green)
on
Field supply voltage present