Estimated Runtime On Internal Batteries - 50Kva - Toshiba 4400 Series Installation And Operation Manual

4400 SPECIFICATIONS: 50kVA w/ Internal Battery Backup
Specification
OTHER
Warranty (yr.)
Certifications
11.7 Estimated Runtime on Internal Batteries – 50kVA
Below are charts of the estimated runtime for the 4400 Series 50kVA on internal batteries at various loads
at a 0.9 and 0.8 Power Factor.
The 80kVA UPS is not available with internal batteries. An external battery cabinet (or equivalent) is
required to provide backup power.
These runtimes are estimates based on new batteries operating at 76 °F. Actual runtimes may vary due
to manufacturing variations, previous discharge profiles, battery age, and operating temperature.
ESTIMATED RUNTIME ON INTERNAL BATTERIES AT VARIOUS LOADS
UPS
10%
50kVA (0.8 PF) >60
50kVA (0.9 PF)
>60
1 – Subject to change without notice.
4400 Series Installation and Operation Manual – 64527-006
UL 1778, CUL, NEC (NFPS-70), CE, IBC, CBC, ANSI
C62.41 (IEEE 587), Nema/PET-1993, OSHA, ISO9000, ISO
14001:2004.
Estimated Runtime in Minutes at Percent Full Load
20% 30% 40% 50%
50 29 19
41 25 16
50kVA
3 Years
60% 70% 80%
14 11 9
12 9 7.5 5.5
1
1
90% 100%
7 6 5
4.5 3.5
61