Intended Use
4
146710 / 8523612300
2018-07-02·BA00·III·en·08
Motor protection circuit-breaker
8523/8
4.2 Alterations and Modifications
4.3 Special Versions
In case of additional/different order options, special versions may differ from the
description given here.
5
Intended Use
The motor protection circuit breakers of Series 8523 are equipped with a non-adjustable
fast short-circuit release and a thermal overcurrent release adjustable at the switch.
They are used for protecting and switching explosion-protected electric motors.
As "incomplete Ex equipment", they must be installed in a specially certified enclosure of
type of protection "increased safety". The installation must be checked by a recognized
expert.
They are certified for use in hazardous areas of Zones 1 and 2.
Special characteristics of the motor protection circuit breaker:
X
Phase failure sensitivity according to IEC/EN 60947
X
Temperature compensation within the ambient temperature range
X
Trip-free release
X
Isolating characteristics
X
Main switch and EMERGENCY-STOP characteristics in connection with the
appropriate actuator
X
Can be fitted in any operating position
WARNING
Alterations and modifications to the device are not permitted!
We shall not accept any liability or warranty obligations for damage resulting
from alterations and modifications.
