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International

Domestic

AC Motors

Low Voltage Motors: Non Sparking Series

Operating & Supply Conditions

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

Execution & Features

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

Dimension Drawings

FRAME FOOT 'B' FLG CABLE SIZE
80 32210698 32210798 1x4Cx4sqmm
90S
90L
100L
112M 32210898 32210998 1x4Cx16sqmm
132S
132M
160M
160L
180M 32224099 ---- 2x3.5Cx70sqmm
180L 32224199
200L 32224199
225S ----
225M 32224199
250S 31113198 31112798 2x3.5Cx120sqmm
250M
280S 2x3.5Cx185sqmm
280M
315 31113498 31113798 MMD-02-147
355 31113598 31113898

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