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Features
Mechanical
- Cast Iron Frame and endshields meet needs of tough industrial applications
- Stainless steel nameplate for lifetime legibility
- Centered stator in the frame allows for field conversion from F1 to F2
- Oversized, 90 degree rotatable conduit box
- Non-sparking plastic fans give long life in severe environments
Electrical
- All ratings meet EPAct Efficency Levels
- Electrical performance exceeds Nema A and B requirements
- Inverter compatible insulation system meets Nema MG-1 Part 31 at 460V
- Class F Insulation System
Additional Severe Duty Features
- Cast iron fan cover and conduit box(400-445 frame fan covers are Heavy Guage steel)
- Shaft slinger on shaft end to prevent contaminant entrance into bearing cavity
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Technical Specifications
| Frame Size | 143-365 See Severe Duty far higher Horsepower & frame |
| Poles | 2,4,6 |
| Voltage | 200, 230/460, 460, 575 |
| Frequency | 60 |
| NEMA Design | A or B |
| Time Rating | Continuous |
| Mounting | F1 |
| Mounting Holes | 143-286: 1 per foot. 326365: 2 per foot |
| Ambient | 40°C |
| Altitude | 3300 Ft |
| Service Factor | 1.15 |
| Insulation Class | F |
| Insulation System | Non-Hygroscopic, Anti-Fungus, meets NEMA MG1-31 |
| Temperature Rise | 143-286:90°C @ 1.15SF, 324-365: 115°C @ 1.15 SF |
| Inverter Capabilities | Variable Torque inf:1, Constant Torque 2:1 |
| Efficiency | EPAct |
| Bearing Type | Ball,143T-286T Sealed Bearings; 284TS-286TS and 324-449 Open |
| Bearing Caps | 284TS-286TS and 324-449 |
| Bearing Protection | Shaft Slinger on 444-449 |
| L10 Bearing Life | Direct Coupled: 65,000 hrs. Belted: 25,000 hrs |
| Grease | 143T-286T: Multemp SRL (Lithium based), 284TS-286TS and 326449: Chevron SRI-2 |
| Relubrication | 284TS-286TS and 324-449 |
| Frame Material | Cast Iron |
| End Shield | Cast Iron |
| Conduit Box | Stamped Steel, rotatable |
| Fan Cover | Steel |
| Fan | 284TS-286TS: Cast iron, All Other: Plastic |
| Fasteners | 143-286 Metric, 324-365: SAE |
| Nameplate | Stainless Steel |
| Ground | Bronze Bolt in Conduit Box |
| Lifting Means | 143-145: None, 182-365: Eye Bolt |
| Drains | 2 Holes |
| Paint | Gray, 143-286: Laquer, 324-365: Epoxy |
| Rotor | Cast Aluminum |
| Balance/Vibration | 143-286: NEMA MG1 Standard, 326365: 0.11 in/sec max |
| Tests | NEMA Routine, IEEll2B |
| Agency Approvals | UL - Component and Insulation System Recognition, CSA - Motors and C-390 |
| Warranty | 12-18 Months |
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