Alencon SPOT: Installation,
Operation, and Maintenance Manual
10 |
P a g e
4.3 Fusing
AID can include fusing on the positive leads of PV input as desired. Fuse rating should be
specified in accordance with local jurisdictions and all relevant electrical codes. The fuse and
fuse holders specified will depend on the voltage rating of the AID itself:
AID Voltage Rating
Fuse Holders
Fuses
1000V
Mersen USM1HEL
Mersen HP10M (10*38mm)
1500V
Mersen HP15FHM32
Mersen HP15M (10*85mm)
4.4 AID Enclosure
The AID is packaged in a non-corrosive, non-conductive, light weight enclosure. It has a rigid
design with back panel inserts. Nonmetallic mounting brackets and a gasket system encased in
a continuous channel on the cover assure long life and water tightness.
F
IGURE
5:
AID
E
NCLOSURE
4.5 Grounding/Ground Fault Indication
Ground fault indication is an option available with the AID. A fused connection between main
earth ground and input voltage will blow in the case of a ground fault and a bright red indicator
LED will turn on to show the fault occurrence.
This fused connection can be used to bond the positive or negative input to GND, depending
on the desired grounding scheme. Note that this feature is only available for SPOT units with
grounded input, an AID with floating SPOT or BOSS units will not have this feature.
Ground fault fuse can be replaced in the field after ground leak has been located and repaired.
Indicator LED will then turn back off.
