AC 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	Resistive start
Permissible starts/hr	Cold successive - 4 , Hot successive - 3 ,Equally spread - 6
Loading at reduced volts	75% Rated volts for 5 minutes
Insulation ST / RT	Class `F' / 'F'
Temp. Rise ST / RT	Class 'B' / 'F'
Direction of rotation	Bi-directional
No. Of leads, ST / RT	3 / 3
Degree of protection	IP 21 for SB/VSB series up to 225 Frame, IP 23 for SB/VSB series 250 & 355 frames
Method of cooling	IC 01
T.box position	RHS looking from DE
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 mounted / 'B' flange mounted.
Frame sizes	SB / VSB 180 to 355. (for 'B' flange mounting ratings covered in SB180M to be offered in VSB180L, & ratings covered in SB200M to be offered in VSB200L)
Shaft extension	Single cylindrical extension as per IS: 1231
Body material	Cast iron.
T.box material	Cast iron , mild steel for 250 & 355 Frames
Fan material	Aluminium for all frames up to 225 frames, mild steel for ;250 & 355 frames
Accessories	Nil
Paint & shade	NC base RAL5012 shade up to 225, Epoxy base RAL5012 above 225
Bearing type Greasing facility	Open type ball/roller bearings for 180 to 355 Online greasing facility for 180 to 355

FRAME	FOOT	'B' FLG	MAX.CABLE SIZE, STATOR
180M	32239298	----	1x3Cx70sqmm
180L		32243098
200M		----
200L		----
225M		----
250S	31103797	31112996	1x3Cx120
250M			1x3Cx120
280S			1x3Cx240
280M			1x3Cx240
315	31101206	----	MMD-02-145
315LX	41101007	----	MMD-02-145
355

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