Note: Maximum rectifier current calculated at -15% voltage tolerance and
102% continuous overload.
Table 10: Transformer cabinet power cable terminal bolt torques
Terminal
Tightening torque [Nm]
Bolt size
L1, L2, L3, N, Protective
bonding
47
M10
Note: Circuit breaker F1 that protects the fans of the transformer cabinet must
be on when installation or service is completed.
CAUTION
To reduce the risk of a fire, connect only to a circuit that is provided with
maximum input circuit breaker current ratings from Table
in accordance with
the national and local installation rules.
The line-to-line unbalanced output capability of the UPS is limited only by the full
load per phase current values for AC output to critical load shown in Table
.
The recommended line-to-line load unbalance is 50% or less.
Source protection for the AC input to bypass must suit the characteristics of the
load and take into account effects such as inrush or starting current.
Bypass and output overcurrent protection and bypass and output disconnect
switches must be provided by the user.
CAUTION
An additional warning label, shown in Figure
, must be installed at the UPS
input terminals and all the primary power isolators used to isolate the UPS
unit if the UPS input is connected through external isolators that, when
opened, isolate the neutral OR the UPS is installed in an IT distribution
system. These warning labels can be obtained from your local service
representative.
Eaton 9PHD Accessory Cabinets TFC-A, EBC-F
and EBC-G
User's and installation guide
©
Eaton Corporation plc 2022. All rights reserved.
Document ID: P-164000538
47 (63)