Ambient Temperature -10 to +50 degree C
Altitude Not exceeding 1000mtrs above mean sea level.
Atmosphere Non corrosive & non Hazardous
Relative Humidity Up to 100%
Voltage 415V ?10%, 3 Ph.
Frequency 50Hz ?5%
Combined Variation 10%
Duty S3, S4 & S5
Service factor 1.0
Loading at reduced volts 75% Rated volts for 5 minutes.
Insulation Class `F'
Temp rise 'F'
Direction of rotation Bi-directional
No. Of leads 3 up to 100 Frame, 6 for 112 and above Frames
Degree of protection IP 55
Method of cooling IC 411
T.box position Side (RHS looking from DE, towards DE)
(90% survival basis) 40,000 working hrs. For direct drive
20,000 working hrs. For belt drive
Vibration Normal class as per IS 12075
Noise As per IS 12065
Frame sizes 80 to 225
Shaft extension Single cylindrical extension as per IS 1231
Body material Aluminium up to 112, cast iron above 112 Frames
T.box material Cast iron
Fan material Polypropelene up to 112, cast iron for 132,160, aluminium for 180 to 200
Paint & shade NC base RAL 5012 shade
Greasing facility Open type bearings for 80 to 200. No online greasing facility for up to 160 Frame. Online greasing facility for 180 to 225