ABB ELETTROSTOP DS 941 Instrucciones Para El Montaje Y La Utilización página 17

DS 9... DS 9...
TEST TEST
OFF OFF
Power supply can be connected to the circuit breaker from either
upstream or downstream, without any difference.
Protection of people from electrocution
The residual current circuit breaker is provided with a direct release
device which is able to switch off the system downstream when, due
to faulty insulation or accidental contact of a person with powered
elements, a current from one of the installed power supply wires,
equal or higher than nominal sensitivity, flows to earth through the
body of the person or the earth wire.
It is obvious that protection is only provided by the circuit breaker on
that part of the installation which follows the circuit breaker itself.
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