S47183-e 01/2008
Design and specifications are subject to change without notice
3
1. Warnings and Safety Hints
1.1 Warnings
During operation, electrical equipment carries dangerous
voltages. In addition, circuit breaker emits hot, ionized
gases when switching currents, especially short circuit
currents.
Installing, commissioning, maintaining, changing or refit-
ting of this equipment must be carried out only by quali-
fied and suitably trained personnel and under strict ob-
servation of national and international applicable safety
regulations.
During their operation, circuit breakers must be equipped
with appropriately fitted covers, e.g. in suitable enclosures
or panel boards. Safety distances must be preserved.
Suitably trained service personnel shall only carry out cer-
tain works.
Non-compliance with these warnings may result in death,
and/or severe physical damage and extensive damage to
equipment.
Prior to carrying out maintenance, inspection or checks,
the circuit breaker must be open, the both terminals must
be grounded, the circuit breaker must be switched off and
the control plugs removed.
During breakers’ operation, manually activation of the
breaker is forbidden. Manual activation must only be used
for maintenance and inspection purposes, when breaker
is power off and grounded.
The circuit breaker consists of high energy moving com-
ponents. Do not touch the circuit breaker while it is being
switched ON (closing) or OFF (opening). There is a high risk
of major injury.
The control circuits may be equipped with capacitors
bank, which may be charged with dangerous voltages.
Work on this section must be carried out carefully.
