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Low Voltage Motors: Spectrum Series


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Operating & Supply Conditions

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


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 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 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
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




KBL Motor Catalogue

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