Low Voltage Motors: Increased Safety Series

FEATURES	VALUES/ STANDARDS
Ambient Temperature	-10 to +40°C
Altitude	Not exceeding 1000mtrs above mean sea level.
Atmosphere	Corrosive& Hazardous,Zone II,Div II,Ign temp–T3,GAS GRP 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 frames
Connection.	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	‘ePM80 to 160’, ‘eSC180 to 355’.(For ‘B’ flange mounting ratings covered in ‘eSC180M’ to be offered in ‘eVSC180L’ & ratings covered in ‘eSC225S’ to be offered in ‘eVSC225M’)
Shaft extension.	Single cylindrical extension as per IS: 1231
Body material	Cast iron
T.box material	Cast iron
Fan material	Aluminium up to 160, cast iron for 180 – 225, mild steel for 250 to 355 Frames
Accessories	Nil
Paint & shade	Epoxy base RAL5012
Bearing type Greasing facility	Pre lubricated sealed Bearing from 80-160. Open type Bearing from 180. Online greasing facility is for 180 to 355 only