GNQ2 Automatic switching device
Application
The GNQ2 series automatic switching device functions offering a
normal power supply by checking the power supply conditions such as
over-voltage ,under-voltage and phase failure and changing over the
power supply of one or several load circuits to another at the
three-phase four-wire dual service network, It is widely used at
different occasions such as indstrial,commercial and tall
structure.
The body comprises two circuit breakers featuring electric-driven
operating mechanism and accessories (auxiliry contact, alarm
contact), mechanical interlocking mechanism, fuse and connecting
terminal , etc.Mechanical interlocking device is mounted between
the two circuit breakers .The voltage of contorl power supply is
AC.230V,The mechanical durability of GNQ2-63-225,GNQ2-400 and
GNQ2-630-800 are respectively 5000 times,3000times and 2500times.
Normal working condition
Ambient Temperature:-5℃～+40℃,The average of 24H is less than +35℃
Altitude:≤2000m
The relative humidity shall not exceed 50% when the environment
temperature is +40℃,The relative humidity may be higher at the
lower temperature condition,The maxmum month-average relative
humidity is 90% in the most humid month with a minimum
month-average temperature +25℃,The factor that dew may occur on the
product due to tempeture change shall be taken into consideration.
Pullution grade :Grade Ⅲ
Installation place without strong Oscillation and dashout,no gas
corrupt metal and disrupt insulation,no serious dust,no conductive
particles and explosive dangeous material , no disruption of strong
magnatic field.
Conform standard
IEC 60947-1
IEC 60947-6-1（1989）
GB14048-11
IEC 60947-2 GB14048.2
