Ultron HPH Series
33
NOTE:
Regarding
Figure
5-8~5-9
, each figure represents that the main AC power is the TN
system and a 3-pole protective device is installed between the UPS and the main AC
power. If your main AC power is the TT system, please install a 4-pole protective device
between the UPS and the main AC power.
UPS
Suggested Protective Device
Suggested Supplier
20kVA
D-Curve 63A circuit breaker
Input & Bypass: CHNT (CB-60D)
30/ 40kVA
D-Curve 125A circuit breaker
Input & Bypass: CHNT (CB-125 D125)
When connecting the UPS to the critical loads, you must install a 3-pole EN 60947-2 certified
breaker between them. Please refer to the table below.
UPS
Suggested Protective Device
Suggested Supplier
20/ 30/ 40kVA
C-Curve 63A Breaker
Output: CHNT (CB-60 C63)
Check that the size, phase and polarity of each cable that needs connecting to the UPS is
correct. For the specifications of input/ output cables and terminal block, please refer to
Table
5-1
.
Capacity (kVA)
20kVA
30kVA
40kVA
AC Input cable
6AWG/ 10mm²
6AWG/ 10mm²
4AWG/ 16mm²
Output cable
8AWG/ 6mm²
6AWG/ 10mm²
4AWG/ 16mm²
Battery Input cable
6AWG/ 10mm²
4AWG/ 16mm²
2AWG/ 25mm²
Tightening Torque
33 kgf-cm/ 29 lb-in
33 kgf-cm/ 29 lb-in
33 kgf-cm/ 29 lb-in
Input Breaker
50A (3-pole×1)
100A (3-pole×1)
100A (3-pole×1)
Bypass Input Breaker
50A (3-pole×1)
63A (3-pole×1)
63A (3-pole×1)
Table 5-1: Specifications of Input/ Output Cables and the UPS’s Breakers
NOTE:
1. In accordance with
National Electrical Codes (NEC)
, please install a suitable
conduit and bushing.
2. Please refer to national and local electrical codes for acceptable protective device
and cable size.
Summary of Contents for Ultron HPH Series
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