M2364-2 v1
Always use suitable isolated test pins when measuring signals in
open circuitry. Potentially lethal voltages and currents are present.
M2370-2 v1
Never connect or disconnect a wire and/or a connector to or from a
IED during normal operation. Hazardous voltages and currents are
present that may be lethal. Operation may be disrupted and IED and
measuring circuitry may be damaged.
GUID-BEDD698E-356C-4CF9-9DAE-64DB3CEADEAD v1
Dangerous voltages can occur on the connectors, even though the
auxiliary voltage has been disconnected.
M2369-2 v3
Always connect the IED to protective earth, regardless of the
operating conditions. This also applies to special occasions such as
bench testing, demonstrations and off-site configuration. This is
class 1 equipment that shall be earthed.
M2367-2 v1
Never disconnect the secondary connection of current transformer
circuit without short-circuiting the transformer’s secondary
winding. Operating a current transformer with the secondary
winding open will cause a massive potential build-up that may
damage the transformer and may cause injuries to humans.
M2372-2 v1
Never remove any screw from a powered IED or from a IED
connected to powered circuitry. Potentially lethal voltages and
currents are present.
SEMOD168311-3 v1
Take adequate measures to protect the eyes. Never look into the
laser beam.
GUID-11CCF92B-E9E7-409C-84D0-DFDEA1DCBE85 v2
The IED with accessories should be mounted in a cubicle in a
restricted access area within a power station, substation or industrial
or retail environment.
Section 2 1MRK 506 377-UEN C
Safety information
18 Railway application RER670 2.2 IEC
Commissioning manual
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