NOTE: Install the output breaker between the output terminal and the load, and the breaker should have leakage
current protective function if necessary.
6. Put the terminal block cover back at the rear panel of the UPS.
Adhere to the below safety instructions when installing the standard model.
WARNING! Risk of electric shock. Can cause injury and death. Make sure the UPS is off before the installation.
The UPS should not be turned on during wiring connection.
Do not try to connect the standard internal battery to the external battery. The battery type and voltage may
be different, risk of electric shock or fire may occur! for 20kVA and 40kVA, in case it is necessary to connect
in parallel internal and external batteries, these should be of the same model (same supplier and capacity)
and should have the same battery blocks number.
NOTE: Set the battery pack breaker in “OFF” position and then install the battery pack.
WARNING! Risk of equipment damage. Can cause injury and death. Pay special attention to the rated battery
voltage marked on the rear panel. If you want to change the numbers of the battery in a chain, make sure you
modify the UPS setting accordingly. Connection with wrong battery voltage may cause irreversible damage
of the UPS.
WARNING! Risk of equipment damage. Can cause injury and death. Pay special attention to the polarity
marking on external battery terminal block. Connection with wrong battery voltage may cause irreversible
damage of the UPS.
WARNING! Make sure the protective grounding/earthing wiring is adequate. The current spec, color, position,
connection, and conductance reliability of the wire should be verified.
WARNING! Make sure the utility input & output wiring is rated correctly. The current spec, color, position,
connection, and conductance reliability of the wire should be verified. Make sure the L/N side is correct, not
reverse or short-circuited.
2.3.1 MTP 10-15-20kVA from 3-3 Setting to 3-1 Setting
NOTE: The following procedure is applicable only to MTP 10-15-20kVA. MTP 30-40kVA and MTP 80kVA cannot have
Single phase output.
1. Disconnect the EPO connector.
2. Turn ON the main input breaker and connect the batteries. Keep turned OFF the bypass input breaker and the
output breaker.
3. Confirm on the display main page that the UPS is in standby mode.
4. Go to setting and click on Advance and enter the maintainer level password.
2 Installation and Operation Proprietary and Confidential ©2024 Vertiv Group Corp. 19
Vertiv™ Liebert® MTP Online UPS User Manual 20-40-80kVA
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