Eaton PT 10 Instruction Manual page 4

Instruction Manual MN013021EN
WARNING
Dangerous Electrical Voltage!
Do not attempt to install or perform maintenance
on equipment while it is energized. Death or severe
injury can result from contact with energized
equipment. Always verify that no voltage is
present before proceeding. Always follow safety
procedures. Eaton is not liable for misapplication or
misinstallation of its products.
Observe all recommendations, notes, cautions, and
warnings related to the safety of personnel and
equipment. Observe and comply with all general and
local health and safety laws, codes, and procedures.
WARNING
Do not attempt to install, test, or perform
maintenance on equipment while it is energized.
Death or severe personal injury can result from
contact with energized equipment. De-energize the
circuit and disconnect the circuit breaker before
performing maintenance or tests. Any tripping
operation will cause disruption of service and possible
personal injury, resulting in the unnecessary switching
of connected equipment. Testing a circuit breaker
while it is in-service and carrying load current is
not recommended. Testing of a circuit breaker that
results in the tripping of the circuit breaker should
be done only with the circuit breaker in the test or
disconnected cell positions or while the circuit breaker
is on a test bench.
iv PT 10 TrIP UnIT User ManUal Power TrIP (PT) UnITs MN013021EN January 2024 www.eaton.com
WARNING
Electrical shock or burn injury can occur when
working on power systems. Always turn off the
main power that is supplying the circuit breaker
before conducting tests. Test out of the cell, if
possible.
CAUTION
Exercise care when replacing the battery to ensure that
it is installed correctly. Accidentally installing the battery
in the reverse direction will not harm the trip unit nor
the battery, but will defeat the function of the battery.
IMPORTANT
Auxiliary power is not required to provide current
protection features. Protection is active well below
any overload. The trip unit begins to power-up at very
low levels of current at approximately IZMY16 - 80A,
IZMY25 - 100A, IZMY40 - 200A.