User Manual
9
Operation from a generator
As a guide we recommend that the load capacity should be less than 30% of the generator capacity, and
the generator rating should be 1.5 to 2 times the rating of the UPS, depending on the type of generator
used.
Caution:
Ensure that the neutral line from the generator is permanently connected to the
mains neutral line. Do not use an MCB or any other type of switch in this line.
Circuit breaker and cable sizes
Use the following sizes of circuit breakers and cables to connect the UPS between mains power and the
load.
Model
Battery breaker
(A)
Battery
breaker
type
Input and output
breakers (A)
Breaker
type
Input, output and
battery cable sizes
(mm
2
)
VFI6KT
C40/C63
MCB
6 (10 AWG)
32
MCCB
C63/C80
MCB
10 (8 AWG)
VFI10KT
50
MCCB
Caution:
When installing external
battery packs
do not use an MCB breaker in the battery line as this
type of breaker is not rated for the d.c. battery voltage. Instead use an MCCB breaker that is
rated for the d.c. battery voltage and the battery short-circuit current breaking capacity.
Unpacking the UPS
To unpack the UPS:
1. Cut the two straps securing the packing box to the pallet and remove the packing box by lifting it up
and over the UPS.
2. Remove and retain the documentation, CD and leads from the top of the UPS.
3. Dispose of packets of desiccant correctly.
4. Move the UPS off the pallet.
WARNING!
UNITS CAN WEIGH UP TO 80 KG. TO PREVENT THE UPS FROM FALLING DO NOT
LEAN IT WHEN MOVING IT OFF THE PALLET.
5. Check the appearance of the UPS to see if it is damaged. If any damage is found, do not switch on
the UPS and contact Power Inspired.
6. Check the packing list. Contact Power Inspired if any of the accessories are missing.
VFI-KT Series User Manual
