Preamble
It is of vital importance to have a safe operation for electrical apparatus in hazardous zones. Therefore,many countries have set up rules for the design and operation of this specific apparatus. GB 3836-2000 is a set of Chinese standards for electrical apparatus in explosive gas zones. It is equivalent to IEC60079, but more demanding than IEC60079. The Chinese standards keep key points of its former version on the basis of IEC60079.
The R & D of M2JA series (80-355) flameproof motors is compatible with ABB's latest manufacturing technology and Chinese standards GB 3836-2000. The series can be credited with the most advanced flameproof motors (Ex d llC) for factory application in China (temperature class T1-T4).
Working conditions
Ambient temperature:to be altered with the change of
seasons, but do not exceed -15℃ ~40℃
Altitude: to be used lower than 1,000 meters above sea level.
Rated frequency: 50Hz/60Hz
Rated voltage: 220V~690V
Duty: Continuous ( S1 )
Method of Starting can be started on full voltage motors and
can be started with Y-△ starter or reactor.
Driving method: flexible coupling or spur gear can be used
for driving.
Insulation and temperature rise: class F. But the temp. rise
of the stator windings is limited at 8OK, i.e. treated as class B
(resistance method). Permissible working temp. of bearing
should not be over 95℃ (thermometer method).
Cooling method: IC 411
Voltage and Technical Data
M2JA series allow a wide—range OpreraUonal supply voltage，The efficiency,power factor,and speed show minimun changes within the specified voltage ranges.
Non-standard voltage are available on request．
More parameter descriptions, please click to download pdf document here:
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