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3 I N S TA L L AT I O N
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3 .4 Electrical installation
3 .4 .1
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11 Circuit breaker
The commissioning of the UPS includes the
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connection of the UPS and batteries, the verification
12 External back-
feed isolation
of the electrical installation and operating
environment of the UPS, the controlled start-up
and testing of the UPS, and customer training.
WARNING
DANGER
3 .4 .2
fuse ratings
When selecting the cable cross-sections and the
protective devices, follow the recommendations
in the technical specifications document or follow
local standards.
DANGER
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11
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Table 4: Recommended cable cross sections
Model
Protective
earthing
conductor
(min . cross
section)
Input L, N, G
(min conductor
cross section)
Input fuse
Output L,N,
(min . conductor
cross section)
Commissioning
DO NOT OPERATE IN CASE OF PRESENCE
OF WATER OR MOISTURE.
WHEN OPENING OR REMOVING THE UPS
COVERS YOU ARE EXPOSED TO
DANGEROUS VOLTAGES.
Recommended cable sections and
TO REDUCE THE RISK OF FIRE, THE UNIT
SHOULD ONLY CONNECT TO A CIRCUIT
PROVIDED WITH BRANCH CIRCUIT
OVERCURRENT PROTECTION FOR:
•
D CURVE 63 A RATING (UPSTREAM
CIRCUIT), FOR 6KVA MODELS,
•
D CURVE 80 A RATING (UPSTREAM
CIRCUIT), FOR 10KVA MODELS
6K
10K
10 mm^2
16 mm^2
(8 AWG)
(6 AWG)
10 mm^2
16 mm^2
(8 AWG)
(6 AWG)
63 A
80 A
10 mm^2
16 mm^2
(8 AWG)
(6 AWG)
RISK OF BACKFEED VOLTAGE. ISOLATE
THE UPS BY INSTALLING AN EXTERNAL
ISOLATING DEVICE BETWEEN THE MAINS
INPUT AND THE UPS.
DANGER
BEFORE WORKING ON THIS CIRCUIT,
CHECK FOR HAZARDOUS VOLTAGE.
ABB recommends that an external isolating
device is installed between the mains input
and UPS as shown in Figure 12 to protect
against backfeed currents .
Input main breaker
Line Input
Neutral
AC Contactor:
208-240 V, 63 A
(PowerValue 11 RT G2 6 kVA)
208-240 V, 80 A
(PowerValue 11 RT G2 10 kVA)
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12
15
AC Contactor
Mains
Input
Coil Remote
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