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Do not use a cable with damaged insulation.
Do not pinch or sharply bend the cable.
Do not fold or knot the cable.
• Doing so may cause the cable to be damaged or heated, which may cause an electric
shock or a fire.
• If the cable is damaged, stop using the unit and have the cable repaired.
• For repair, contact our sales personnel.
Do not connect any devices other than rated voltage is 24 VDC.
• The rated output voltage of this unit is 24 VDC.
• Overvoltage or overcurrent may damage the connected devices.
• The output voltage range is 22 to 30 VDC.
All of the included accessories are designed to be used with the unit. Do not use the acces-
sories with other devices.
• Doing so may compromise the safety of devices.
When this product is used in compliance with CE marking, please use under 2 m communi-
cation cable.
Do not block the air vents (upper and lower).
• Doing so will cause the internal temperature to rise, which may cause the unit to fail and
the battery to deteriorate.
• During installation, leave a space of 50 mm or more above the top and below the bottom.
Do not connect the RS232C/USB port or the CONTACT port to a LAN device using a LAN
cable.
• Connection to a LAN device may result in malfunction in or damage to the UPS or the
LAN device.
Do not run this unit in parallel.
• Operating this unit in parallel may cause a failure or malfunction.
For use
Do not allow the unit to come in contact with water.
• Doing so may cause an electric shock or a fire.
• Doing so may cause an abnormal heating, smoke, rupture, or fire on the battery.
• If the unit comes in contact with water, immediately stop using it and have it inspected
and repaired. To make an emergency stop, turn the rotary switch to "BATT REP" and turn
off the input power after the LED changes from fast blinking to slow blinking.
• For repair, contact our sales personnel.
When the battery unit is dead, replace it immediately or stop using the unit.
• Continuing the use of it may cause fire or electric shock due to liquid leaks.
Ambient
tempera-
ture
25°C
35°C
45°C
55°C
S8BA-series Uninterruptible Power Supply (UPS) User's Manual (U726)
*The values in the table are the expected
Expected
life under standard use conditions and
life
are not guaranteed.
10 years
6.7 years
3.7 years
1.9 years
Safety precautions
13
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