Product overview
KL9540, KL9540-0010 and KL9550
11
Version: 3.0.1
2.4
KL9550-0000 - introduction
Fig. 3: 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
