| 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 55 |
| Method of cooling |
IC 411 |
| 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 |
| Frame Sizes |
SD 180L, SD200L , SD225M , SD250S & M, SD280S & M, SD315, SD315LX & SDX355X |
| Shaft extension. |
Single cylindrical extension as per IS: 1231. |
| Body material |
Cast iron |
| T.box material |
Cast iron up to 225 frames, mild steel for 250 to 355 Frames |
| Fan material |
Cast iron up to 225 Frames, mild steel for 250 to 355 Frames |
| Accessories |
Nil |
| Paint & shade |
NC base RAL5012 shade up to 225, Epoxy base RAL5012 above 225 |
| Bearing type and
Greasing facility |
Open type ball bearings
Online greasing facility for all |
