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(2) Distribution Panel
Attach the circuit breakers such as a fuse-free breaker (FFB) or a fuse to the branch circuit
which supplies the electricity to the GS4000. Building installation must include 60 A Listed
fuse which is suitable for branch circuit protection at a line conductor. There shall be no fuse
in ground or neutral conductor. All protective devices must be located together. (The protector
from over-charged current should be put into only a line (-48/-60 VDC), and it should not be
put into 0V or a ground. Also, it should be prescribed that the protection at a facility is done
not by a circuit breaker but by putting a fuse into a line only.)
See Table 2.4-4 regarding the ratings of a fuse or required number of fuses/outlets.
Table 2.4-6
Model
GS4000-80E2
GS4000-160E2
GS4000-320E (DC)
Note 1 : It is possible to have a dual power supply system by feeding a power supply module from two different power
sources.
*
(3) Considerations When Powering a Distribution Panel
The current capacity of a distribution panel must be greater than that of the operating current
fed to the circuit breaker. (See (2) Distribution Panel, above.)
*
Also, an inrush of electrical current (See Table 2.4-7) occurs after the device is powered up. Be
prepared well so that the voltage of a power supply facility is not decreased due to the inrush
of electrical current. Careful studies are necessary for the use of UPS or CVCF.
Table 2.4-7
Model
GS4000-80E2
GS4000-160E2
GS4000-320E (DC)
520-10-026-30X
Rated Current of a Fuse
Rated Current of
Circuit Breaker
60 A
NOTE: In order to ease your operation with GS4000, set a distribution panel in the
same/neighbor room where GS4000 is installed.
WARNING: THE CURRENT CAPACITY OF A DISTRIBUTION PANEL MUST BE
GREATER THAN THAT OF THE OPERATING CURRENT FED TO THE
CIRCUIT BREAKER. IF NOT, THE CIRCUIT BREAKER MAY NOT WORK
PROPERLY WHEN A CIRCUIT ABNORMALITY IS DETECTED. THIS
CONDITION COULD CAUSE A FIRE.
NOTE: In general, the operating current fed to a circuit breaker is set to be greater
than the rated current. Check the specification of your circuit breaker before
using it.
Inrush Current
Power Supply
Single
Redundant (NOTE1)
Single
Redundant (NOTE1)
Single
Redundant (NOTE1)
Current
40(A)
80(A)
80(A)
GS4000 Installation Guide Revision 4.00
Required Number of
Circuit Breakers
1
2
1
2
2
4
Time
40ms
2-15
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