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UPS
Power
Input/
Output
Cables
Figure 12-7 - 431B DC and Breaker Cable Connections
1. Run the pre-wired shunt trip cable shown in Figure 12.8 from the 431B through the 431B/UPS cable
access port, Figure 12-5, and plug it into the corresponding MATE-N-LOK in the UPS.
2. Reinstall the dead fronts.
12.7
431Bx000xxER111 Backup Runtime Tables
The following Table 12.4 gives the typical backup runtimes at various loads for a single cabinet
431Bx000xxER111.
UPS
Capacity
PF
4300
30kVA
0.8
4300
30kVA
0.9
4300
50kVA
0.8
4300
50kVA
0.9
4300 Series Ancillary Cabinets Installation and Operation Manual
4300 Series UPS
TB3
3 4 7 8
TB1
AC IN
AC OUT
U V W
N
N
U V W
Figure 12-8 - 431B Factory Supplied
Shunt Trip Wiring
Table 12.4 - 431B Typical Runtimes versus Load
Runtime in Minutes at % Full Load
100%
90%
80%
70%
17
21
24
15
17
20
8
9
11
7
8
9
431B
TB1
(Battery Shunt Trip
1 2 7 8
CB1
+
+
60%
50%
40%
30
38
45
59
24
33
38
53
14
17
24
32
11
15
20
26
& Aux 1)
(DC Power)
-
30%
20%
10%
>90
>90
>90
74
>90
>90
46
70
>90
44
60
>90
47
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