Electrical Installation; Commissioning; Recommended Cable Sections And Fuse Ratings - ABB PowerValue 11 T G2 Series User Manual

3 I N S TA L L AT I O N
—

3 .4 Electrical installation

3 .4 .1
—
13 Circuit breaker
The commissioning of the UPS includes the
—
connection of the UPS and batteries, the verification
14 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
ratings
When selecting the cable cross-sections and the
protective devices, follow the recommendations
in the technical specifications document or follow
local standards.
DANGER
—
13
—
Table 5: 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 fuse
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
6 kVA (B/B2/S) 10 kVA (B/B2/S)
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 T G2 6 kVA B/B2/S)
208-240 V, 80 A
—
(PowerValue 11 T G2 10 kVA B/B2/S)
14
15
AC contactor
Mains
input
Coil remote
switch