Vertiv | NetSure 7100 Series Quick Start Guide (QS582127000) | Rev. T
DC Output and Battery Voltages
DANGER! This system produces DC power and may have a battery source connected to it. Although
the DC voltage is not hazardously high, the rectifiers and/or battery can deliver large amounts of current.
Exercise extreme caution not to inadvertently contact or have any tool inadvertently contact an output
terminal or battery terminal or exposed wire connected to an output terminal or battery terminal.
NEVER allow a metal object, such as a tool, to contact more than one termination or battery terminal at a
time, or to simultaneously contact a termination or battery terminal and a grounded object. Even a
momentary short circuit can cause sparking, explosion, and injury.
DANGER! Follow local lockout/tagout procedures to ensure DC branch circuit protection devices
remain de-energized during installation at loads, as required.
Battery
Refer to the battery manufacturer documentation for specific battery safety instructions. The following are
general guidelines.
WARNING! Correct polarity must be observed when connecting battery leads.
WARNING! Special safety precautions are required for procedures involving handling, installing, and
servicing batteries. Observe all battery safety precautions in this manual and in the battery instruction
manual. These precautions should be followed implicitly at all times.
WARNING! A battery can present a risk of electrical shock and high short circuit current. Servicing of
batteries should be performed or supervised only by properly trained and qualified personnel
knowledgeable about batteries and the required precautions.
The following precautions should be observed when working on batteries:
• Remove watches, rings, and other metal objects.
• Eye protection should be worn to prevent injury from accidental electrical arcs.
• Use certified and well maintained insulated tools. Use double insulated tools appropriately rated for
the work to be performed. Ensure that wrenches with more than one working end have only one
end exposed.
• Do not lay tools or metal parts on top of batteries.
• Disconnect charging source prior to connecting or disconnecting battery terminals.
• Risk of explosion if battery is replaced with an incorrect type or if polarity is reversed.
Recommended to replace batteries with the same manufacturer and type, or equivalent.
• Dispose of used batteries according to the instructions provided with the batteries. Do not dispose
of batteries in a fire. They may explode.
• ALWAYS FOLLOW THE BATTERY MANUFACTURER’S RECOMMENDATIONS AND SAFETY
INSTRUCTIONS.
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