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ITFrequently Asked Questions · UPS
Who installs the UPS?
Small UPS units that plug into a standard wall outlet can be installed by the user by following the manual. Larger units require certified, specialized personnel.
The distinction is based on power and on how the unit is connected. Small single-phase UPS units with a Schuko plug connect to an ordinary socket, and users can install them themselves: connect the batteries if they were disconnected for transport, allow the initial charge, and connect the devices.
Larger units, such as UPS units with terminal blocks instead of a plug, three-phase systems or units with external battery packs, are connected directly to the electrical panel. This requires the correct cable cross-section, suitable protection with a fuse or circuit breaker, proper earthing and often a maintenance bypass switch. This work must be done by a licensed electrician or certified technician, both for safety and for correct operation.
Even with a small UPS, check that the socket is earthed and that the circuit can handle the load. Do not connect heaters, electric cookers or other large heating loads to the output.
A common mistake is plugging the UPS into a power strip or extension lead, or plugging a surge-protected power strip into its output. Connect it directly to a wall socket, as the manual specifies.
