CAUTION: Risk of hazardous voltage. Can cause equipment damage, injury or death to personnel. Extreme
precaution is required when working with the UPS system as it is connected to the neutral main connector
even after the UPS system input breakers are disconnected.
System doesn’t have any breaker or switch on neutral terminal.
WARNING! Risk of electric shock and hazardous voltage. Can cause equipment damage, injury or death to
personnel. Disconnect the neutral bar, before conducting any kind of service or maintenance and verify that
no voltage between terminals and the ground is present.
WARNING! Risk of electric shock and hazardous voltage. Can cause equipment damage, injury or death to
personnel. Servicing of UPS should be performed or supervised by personnel experienced with the UPS and
with the required precautions. Keep unauthorized personnel away.
WARNING! Risk of electric shock and high short-circuit current. It can cause damage to the property and
injury or death to personnel. Remove wristwatches, rings, and other metal objects before installation and
maintenance or repair. Use tools with insulated handles. Wear rubber gloves and boots during installation and
maintenance or repair.
CAUTION: Risk of fire and damage to the equipment. Replace the fuse only if it is the same type and
amperage.
NOTE: Do not disassemble the UPS system.
1.4 Recycling the Used Battery
• Do not dispose of the battery in a fire as it may explode. The battery must be disposed of properly. Refer to the
local codes for battery disposal.
• Do not open or mutilate the battery. The electrolyte that is released might be toxic and potentially hazardous and
is harmful for the skin and eyes.
• Do not discard the UPS or the UPS batteries in the trash. This product contains sealed, lead acid batteries and
must be disposed properly. Contact your local recycling/reuse or hazardous waste center for proper disposal.
• Do not discard waste electrical or electronic equipment in the trash. Contact your local recycling/reuse or
hazardous waste center for proper disposal.
CAUTION: Risk of explosion. May cause injury or death if the battery is replaced by an incorrect type.
Dispose of the used batteries according to the instructions. Refer to the local codes for battery disposal.
1.5 Connection Warnings
There is no standard back feed protection inside of the UPS. However, there are relays on the Input to cut off line voltage and
while the neutral is still connected to UPS.
1 Important Safety Instructions Proprietary and Confidential ©2024 Vertiv Group Corp. 3
Vertiv™ Liebert® MTP Online UPS User Manual 20-40-80kVA
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