Ambient Temperature -10 to +50 degree 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

 

 

 

Starting Star Delta/DOL (with shorting links but with 2 entries) 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 deg. 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 driving end 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, Foot cum 'B' flange Frame sizes SC 180 to 355 (For 'B' flange mounting, ratings covered in SC180M to be offered in VSC180L, & ratings covered in SC225S to be offered in VSC225M) Shaft extension Single cylindrical extension as per IS: 1231 Body material Cast iron T.box material Cast iron up to 225 frame, mild steel for 250 to 355 frame Fan material Polypropelene for 4, 6, & 8 pole & cast iron for 2 pole up to 225 frames. Mild steel for 250 to 355 frames for all polarities Accessories Nil Paint & shade NC base RAL5012 shade up to 225, Epoxy base RAL5012 above 225 frame Bearing type and Greasing facility Open type bearings for SC180 to 355 Online greasing facility for SC180 to 355