Low Voltage Non Sparking Series Motors, Low Voltage Non Sparking Series Motors Manufacturer, Mumbai, India
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Non Sparking Series (Low Voltage Motors)

 

 

 

Specifications
FEATURES VALUES/ STANDARDS
Ambient Temperature -10 to +50°C
Altitude Not exceeding 1000mtrs above mean sea level.
Atmosphere Corrosive & Hazardous, Zone II,Div II,IGN TEMP–T3,gas group IIA,IIB
Relative Humidity Up to 100%
Voltage 415V ±10%, 3 ph.
Frequency 50Hz ±5%
Combined Variation 10%
Duty S1 (continuous)
Service factor 1.0
 
 
FEATURES VALUES/ STANDARDS
Starting DOL up to 100 & Star Delta for 112 above frames
Permissible starts/hr. Cold successive - 4 hot successive - 3 equally spread - 6
Loading at reduced volts 75% Rated volts for 5 minutes.
Insulation / temp.rise Class `F' / 70°C
Direction of rotation Bi-directional
No. Of leads 3 up to 100 & 6 for frame 112 & above.
Connection Star : Up to 90 frame, 6 & 8 pole ratings of 100 frame
Delta : 2 & 4 pole ratings of 100 frame & 112 and above all ratings
Degree of protection IP 55
Method of cooling IC 411
T.box position RHS looking from DE (towards DE up to 160)
Bearing life
(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
Construction Foot / 'B' flange
Frame sizes 'nPM80 to 160', 'nSC180 to 355'(For 'B' flange mounting ratings covered in 'nSC180M' to be offered in 'nVSC180L' & ratings covered in 'nSC225S' to be offered in 'nVSC225M')
Shaft extension Single cylindrical extension as per IS: 1231
Body material Cast iron
T.box material Cast iron, mild steel for 250 to 355 Frames
Fan material Aluminium up to 160, Cast iron for 180 – 225 Frames, mild steel for 250 & above Frames
Accessories
Nil
Paint & shade Epoxy base RAL5012
Bearing type 
Greasing facility
Pre lubricated sealed Bearing up to 160. Open type Bearing from 180. Online greasing facility is for 180 to 355 only
 
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Non Sparking Series

 

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