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Module 96-PA-RCM / 96-PA-RCM-EL
2.7 Safety information for handling current
transformers and devices with residual
current measurement
WARNING
Risk of injury due to large currents and high
electrical voltage on the current transformers!
Current transformers operated while open on the
secondary side (high voltage peaks pose a hazard
when touched) can result in severe bodily injury or
death.
·
Avoid operating the current transformers
while open; short circuit the unloaded trans-
formers!
·
Before interrupting the current supply,
short circuit the secondary connections of
the current transformers. Switch any test
switches that automatically short circuit the
secondary lines of the current transformers
to the “Test” status (Check the test switch/
short circuiting connection beforehand)!
·
Only use current transformers with basic
insulation to IEC 61010-1:2010!
·
Caution, even current transformers rated as
safe for open operation can pose a hazard
when touched during operation while open!
·
Make sure that screw terminals for the cur-
rent transformer connection on the device
are adequately tightened!
·
Comply with the information and provisions
in the documentation of your current trans-
formers!
CAUTION
Risk of injury or damage to the device due to
high measurement currents on the connections
of the current transformers!
High measurement currents can cause tempera-
tures of up to 80 °C (176 °F) on the connections of
the current transformers
·
Use wiring that is designed for an operating
temperature of at least 80 °C (176 °F)!
·
The current transformers can be hot even
after the power supply has been switched
off. Allow the connections of the current
transformers and the connecting cables to
cool down before touching them!
WARNING
Risk of injury or damage to the device due to
improper use!
Devices with residual current measurement
can output warning pulses when limit values are
exceeded. These serve the exclusive purpose of
monitoring residual currents or failure monitoring.
Use of the warning pulses as a stand-alone pro-
tective device against electrical shock can lead to
injury or damage to the device or your system!
·
Do not use devices with residual current
measurement as a stand-alone protective
device. Employ suitable protective devices
for your system!
CAUTION
Risk of injury or damage to the device/your
system due to short circuit!
Inadequate insulation of the operating equipment
at the residual current measurement input with
respect to the supply circuits can cause voltag-
es at the measurement input which represent a
hazard when touched or damage to your device or
system.
·
Ensure reinforced or double insulation with
respect to the supply circuits!
·
Ensure galvanic isolation of the residual cur-
rent measuring inputs from each other!
2.8 Safety information for analog inputs
ATTENTION
Transmission errors and damage to the device
and its components!
With cable lengths greater than 30 m (32.81 yd),
there is a risk of transmission errors and damage to
the device due to atmospheric discharge.
·
Use shielded cables for connections to the
analog inputs.
·
Take suitable shielding measures for cable
lengths greater than 30 m (32.81 yd)!
·
Use the recommended cables and wires!
ATTENTION
Damage to the device/your system due to short
circuit!
Inadequate insulation of the operating equipment
at the analog inputs with respect to the supply cir-
cuits can lead to damage of your device or system.
·
Ensure reinforced or double insulation with
respect to the supply circuits!
ATTENTION
Operational failures or damage to the device
due to connection mistakes.
The analog inputs are not short-circuit proof!
Connection or wiring errors can lead to operational
failures or damage to the device.
·
When making connections, ensure correct
wiring and observe the requirements for
connections and the limit values!
