User manual
G3-Combi
Clayton Power GmbH
Page - 13 -
3. INSTALLATION
3.1 Environment
The Combi must be placed in a dry, well ventilated and dust free location.
Place the unit as close as possible to the battery to keep the cables as short as possible.
Do not place the unit in same compartment as the batteries.
Make sure that water or dust can not enter the cabinet.
Ensure that the air flow from fan is not obstructed.
Avoid mounting the device next to flammable materials.
3.1.1 Mounting the device
The unit can be mounted on a wall, or flat mounted (4 x Ø5mm holes). - Optimum cooling is
obtained in vertical position. During wiring use standard cable fixtures and wire ducts. Do not
bent extremely the cables/wires, and avoid sharp edges to prevent the isolation of the
wires/cables from cutting and abrasion.
Keep in mind that usage of too long battery cables and dirty or loose connections may
produce a significant voltage drop, which would cause that the device shut down for
under voltage, even if the battery is ok!
3.2 Cable Installation
ATTENTION Electric installations should only be done by skilled workers
EMC
The wiring of the cables is influencing the EMC behavior of the system, in which the inverter is a
component. This is due to the fact that the cables are receiver and transmitter antennas of radio
frequency and electromagnetic interference.
Good EMC properties are obtained in the following way: Place the cables in a metal rail. The
metal offers resistance against interference currents. The battery cables should be placed close
to each other to reduce looping area. Cables from different groups should not be twisted, but be
placed parallel with each other.
3.2.1 Battery cable
The cable length (up to 3 meter) between the battery and the combi must be sized according to
the table at next page. The values are given by a criterion to keep the total cable voltage drop
lower than 250mV at max nominal power delivered by the combi.
Recommended cross-section of battery-cables
Wire size Type of device
mm
2
AWG 1012-50 1312-80 1512-80 2012-100 1024-30 1524-40 2324-50
15 5 - 1,5m
25 3 1,5m 2,5m 1,5m
35 2 2m 1,5m 1,5m 3m 2,5m 1,5m
50 1/0 3m 2m 2m 1,5m 3m 2m
70 2/0 - 3m 2,5m 2m 3m
Note: When starting up heavy load with high inrush current (compressors, motors, etc) it is
recommended to use cables with a even higher intersection (or shorter length) to prevent under-
voltage shut-down of the device