Range: MSX Moulded case circuit breakers for power distribution
The moulded case circuit breakers MSX range is made up of circuit breakers with thermo-magnetic release, circuit breakers with thermo-magnetic release and Overcurrent Protection, circuit breakers with electronic release and switch disconnectors.
APPLICATIONS: allows automatic switchover between the main power supply network and the generator line or between the main power supply network and the secondary distribution network. For proper operation it is mandatory to provide a supplementary power supply system via UPS with 230Vac and 24Vdc outputs. NOTE: for the correct functioning of the switchover control unit it is necessary:
- the power supply GWD8887
- 1 key selector GW74411 with 2 contacts GW74504 (1NO+1NC)
- 2 fuse holders 3P+N GW96312 with 6 fuses 6A 10.3x38 GW72105
- 2 fuse holders 2P GW96302 with 4 fuses 2A 10.3x38 GW72104
In addition, circuit breakers for protection of the power supply network and the generator line must each have the following accessories:
- 1 cable mechanical interlock
- 1 motor operator
- 2 auxiliary contacts of position (AX)
- 1 auxiliary contact of fault indicator switch (AL) CHARACTERISTICS: equipped with a 4-line backlit display.
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