Important Safety Information
2
Operation
• Do not disconnect the mains cable on the UPS system or the building wiring shockproof outlet during
operations since this would cancel the protective earthing of the UPS system and of all connected loads.
• The UPS system features its own, internal power source (batteries). The UPS output sockets or output
terminal blocks may be electrically live even if the UPS system is not connected to the building wiring outlet.
• In order to fully disconnect the UPS system, first press the OFF/Enter button to disconnect the mains.
• Prevent fluids and foreign objects from entering the inside of the UPS system.
Maintenance, Service, and Faults
• The UPS system operates with hazardous voltages. Repairs may be carried out only by qualified maintenance
personnel.
• Caution - risk of electric shock. Even after the unit is disconnected from the mains (building wiring outlet),
components inside the UPS system are still connected to the battery and electrically live and dangerous.
• Before carrying out any kind of service and/or maintenance, disconnect the batteries and verify that no
current is present and no hazardous voltage exists in the terminals of high energy capacitors such as BUS-
capacitors.
• Only persons that are adequately familiar with batteries and with the required precautionary measures may
replace batteries and supervise operations. Unauthorized persons must be kept well away from the batteries.
• Caution - risk of electric shock. The battery circuit is not isolated from the input voltage. Hazardous voltages
may occur between the battery terminals and the ground. Before touching, please verify that no voltage is
present!
• Batteries may cause electric shock and have a high short-circuit current. Please take the precautionary
measures specified below and any other measures necessary when working with batteries:
»
Remove wristwatches, rings and other metal objects
»
Use only tools with insulated grips and handles.
• When changing batteries, install the same number and same type of batteries.
• Do not attempt to dispose of batteries by burning them. This could cause battery explosion.
• Recycle or dispose of batteries properly according to local regulations.
• Do not open or destroy batteries. Escaping electrolyte can cause injury to the skin and eyes. It may be toxic.
• Please replace fuses only with the same type and amperage in order to avoid fire hazards.
• Do not dismantle the UPS system.
