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4300 Series Ancillary Cabinets Installation and Operation Manual
1. Run the pre-wired shunt trip cable shown in Figure 11.7 from the 431B through the 431B/UPS cable
access port located at the bottom left side of the 431B, to the UPS 24VDC power supply on the lower
left side of the UPS.
2. Plug the shunt trip cable connector into the shunt trip receptacle in the lower left front of the UPS.
(The connectors are keyed to only plug in one way.)
3. Reinstall the dead fronts.
11.7 431B Backup Runtime Tables
The following give the typical backup runtimes at various loads for a single cabinet 431B.
UPS Capacity PF Runtime in Minutes at % Full Load
100% 90% 80% 70% 60% 50% 40% 30% 20% 10%
4300 30kVA 0.8 17 21 24 30 38 45 59 >90 >90 >90
4300 30kVA 0.9 15 17 20 24 33 38 53 74 >90 >90
4300 50kVA 0.8 8 9 11 14 17 24 32 46 70 >90
4300 50kVA 0.9 7 8 9 11 15 20 26 44 60 >90
Figure 11-7 - 431B Factory Supplied
Shunt Trip Wiring