Elecraft KPA500 Fuse Installation - Manual

Installation
IMPORTANT:
Provide at least 2 inches (5 cm) clearance behind the fan and above the amplifier for
proper air flow.
The following text uses braces to refer to numbered elements in the front- and rear-panel illustrations below. For
example, {1} refers to
1
, the RF OUTPUT connector.
Figure 1. KPA 500 Rear Panel
Mains Voltage Settings
Your KPA500 is supplied with the power cable you ordered; either one using the 115VAC connector common
in the USA or one with the common European (Schuko) plug for 200 VAC.
CAUTION!
Do not connect mains power to your KPA500 or attempt to turn it on before
setting the fuse block switch and internal jumpers to match your supply
voltage as described below; otherwise you may do extensive damage to your
amplifier.
 Check to ensure the fuse block {4} is set for either 115 VAC or 230 VAC to match your mains voltage.
The current voltage setting is shown in the red window. If needed, change the fuse block setting as
follows:

Position the rocker switch in the (O) position and disconnect the mains cord (if connected). Then
open the door covering the fuse block and then carefully pry the red fuse block out of the holder as
shown below: