Low Voltage Motors: Vertical Hollow Shaft Motors

FEATURES	VALUES/ STANDARDS
Ambient Temperature	-10 to +50°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	S1(continuous)
Service factor	1.0

FEATURES	VALUES/ STANDARDS
Starting	Star Delta
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	Anti-clockwise from top.
No. Of leads	6 for all frames
Connection.	Delta for all ratings
Degree of protection /Mounting	IP 21/ IM 3239 HS
Method of cooling	IC 01
T.box position	On body circumference.
Bearing life (90% survival basis)	40,000 working hrs
Vibration	Normal class as per IS: 12075
Noise	As per IS: 12065
Construction	Flange mounted with hollow shaft
Frame sizes	SVH160, 180, 200, 250 ,280 and 315
Body material	Cast iron
T.box material	Aluminium (die cast) 160, cast iron 180, 200, mild steel for 250 & 315 Frames
Fan material	Cast iron for 160, aluminium for 180, 200, mild steel for 250 & 315 Frames
Accessories	Nil
Paint & shade	NC base RAL 5012 shade up to 200, Epoxy base RAL 5012 above 200 frame
Bearing type Greasing facility	As given below Online greasing facility for 160 to 315