APC BP1400 User Manual download pdf (Page 23)

English

13. How to Determine On-battery Run Time

Knowing the on-battery run time of the UPS is an important part of UPS use, especially in situations where

the protected device uses an operating system that requires some time to gracefully shut down.

1. To calculate the on-battery run time first determine the total load protected by the UPS in Volt-Amps.

Obtain load figures from either the labelling on the protected equipment or the accompanying litera-

ture. For loads specified in watts, multiply the specified figure by 1.4. For loads specified in Amps, mul-

tiply the specified figure by 120.

2. Add the individual loads to determine the total load.

3. Compare the total load of your system to the run time table below.

Typical On-Battery Run Time Versus Load, in Minutes

Load 280 VA 420 VA 650 VA 1000 VA 1400 VA Load 650 VA 1000 VA 1400 VA

50 VA 35 41 90 167 306 500 VA 7.2 14 29

75 VA 25 27 64 125 236 550 VA 6.5 13 26

100 VA 18 21 49 98 190 600 VA 5.8 11 23

150 VA 12 14 29 64 133 700 VA - 9 19

200 VA 8 10 22 47 99 800 VA - 7.7 16

250 VA 6 7.5 17 35 74 900 VA - 6.6 13

300 VA - 6.2 14 27 60 1000 VA - 5.8 11

350 VA - 5.1 11 22 50 1200 VA - - 8.8

400 VA - 4.3 9.3 19 42 1400 VA - - 7.2

450 VA - - 8.2 17 35

1 2 ... 18 19 20 21 22 23 24 25 26 27 28 ... 65 66

No comments

APC BP1400 User Manual Page 23