IEEE 841 Motors
IEEE 841 is the petroleum and chemical industry standard for severe duty motors. HD Hyundai Electric IEEE 841 motors carry a 60-month warranty and are specified where reliability requirements exceed standard severe duty construction.
Specifications
| Specification | Detail |
|---|---|
| Product families | IEEE |
| Horsepower range | 1 – 900 HP |
| Frame sizes | 143 – 5812 |
| Poles | 2, 4, 6 (3600 / 1800 / 1200 RPM) |
| Voltage 60 Hz | 230/460 V · 460 V · 575 V |
| Voltage 50 Hz | 380 / 400 / 415 V |
| Enclosure | TEFC |
| Protection | IP55 |
| Efficiency | NEMA Premium |
| Insulation class | Class F with Class H magnet wire |
| Temperature rise | Class B |
| Service factor | 1.15 sine wave · 1.0 on VFD |
| Ambient rating | 40 °C |
| Altitude | 3,300 ft |
| Duty | Continuous S1 |
| Frame construction | Cast iron |
| Nameplate | AISI 304 stainless steel |
| Inverter duty | NEMA MG-1 Part 31 compliant |
| Standard | NEMA MG1-2024 |
| Warranty | 60 months from date of shipment |
What IEEE 841 requires
IEEE 841 specifies requirements beyond general severe duty construction, including bearing life, vibration limits, temperature rise margins, sealing, and testing. It is commonly specified by refineries and chemical plants where unplanned motor failure carries a high production cost.
Certifications
- CSA Class I Div 2 A/B/C/D
- CSA Class II Div 2 E/F/G
- CSA C-390 Premium
- DOE CC038A
- UL E211828
- CE EN 60034-1
Applications
- Refinery process pumps
- Chemical process service
- Critical plant drives
- Applications requiring extended warranty coverage