| Model |
Features |
Standard |
Available Option |
| TS21FW Series (TEFC) |
Frame |
Cast iron |
Fabricated steel |
| Bearing Housings |
Cast iron or Fabricated steel |
N/A |
| Main Terminal Box |
Cast iron for N315LL(N5009)-N450LL(N6810), Fabricated Steel for N500LL(N7808)-N560LL(N8810) |
Large Fabricated steel |
| Auxiliary Boxes |
Cast iron |
NEMA 4X |
| Shaft |
AISI 1045 for N315LL(N5009)-N355LL(N5810) |
AISI 4140 |
| AISI 1035 for N400LL(N6310)-N560LL(N8810) |
| Rotor |
Copper |
N/A |
| Lamination Material |
High grade low loss silicon steel |
N/A |
| External Cooling Fan |
Aluminum or Fabricated steel |
Copper available |
| Fan Cover |
Fabricated steel |
N/A |
| Insulation |
<600V is Class F random wound, |
N/A |
| >600V is Class F-VPI treatment |
| Paint Color |
PU Wooden Grey(Munsell 7.5Y 8.9/0.4) |
Special paint system Other colors |
| Bearing Type |
Ball or Roller bearing |
N/A |
| Vibration |
0.12 IPS or as defined by NEMA |
Special balance |
