Low Voltage Motors: Ring Frame 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’ / 75°C
Direction of rotation	Bi-directional
No. Of leads	6
Connection	Delta
Degree of protection	IP 55
Method of cooling	IC 411
T.box position	RHS looking from DE (towards DE for 132 & 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 (with clean flow fan cover arrangement)
Frame sizes	PMR132M, PMR160M, PMR160L, SCR180M, SCR180L
Shaft extension.	Single cylindrical extension as per IS: 1231
Body material	Cast iron
T.box material	Aluminium (diecast)
Fan material	Polypropelene for all ratings
Accessories	Nil
Paint & shade	NC base RAL 5012
Bearing type Greasing facility	Open type ball bearings for 132 to 180 Online greasing facility for 180 only