DAIREN SQW 12-4ND Manuel d'utilisation - Page 7

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The battery switch (maintenance switch) is used to isolate the AC supply from
the rectifier and also to cut off the DC supply to the inverter during maintenance.
This battery switch must be turned off when the battery is replacing. Likewise It
is also recommended to turn off all UPS circuit breakers.

6) Use environment

Item
Operating temperature
Ambient humidity
Storage temperature
Revision: 01
Operation Manual of 12V UPS
Battery
Switch
Range
-10℃~60℃
20%~90% (non-condensing)
-25℃~55℃
Date: Dec.5. 2021
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