| FEATURES |
VALUES/ STANDARDS |
| 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 |
Propylene 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 |
