KL9540, KL9550 - Surge Filter Terminals

KL9550-0000 - introduction

 
 kl9550-0000_intro
KL9550

Surge filter terminals for field supply and K-Bus supply

The KL9550-0000 surge filter terminal contains overvoltage filters for the field supply (power contacts) and the K-Bus supply (Bus Coupler). The filters protect 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 system (green)
on
K-Bus supply voltage present
Power field (green)
on
Field supply voltage present