MAX-E2/841™ severe duty motors to IEEE 841, 1–500 hp, 460 V
Country: USA · Model: MAX-E2/841
Low-voltage severe duty induction motors from 1 to 500 hp at 460 V that meet or exceed the requirements of IEEE 841 for the petrochemical and chemical industries. Totally enclosed fan cooled (TEFC), NEMA Premium class, designed for supply from a VFD. They have ABS rating for marine use.
- Power
- 1–500 hp
- Voltage
- 460 V
- Speed
- 3600 / 1800 / 1200 / 900 rpm
- Standard
- IEEE 841 (meets or exceeds)
Technical specifications
| Power | 1–500 hp |
|---|---|
| Voltage | 460 V |
| Speed | 3600 / 1800 / 1200 / 900 rpm |
| Standard | IEEE 841 (meets or exceeds) |
| Marine use | IEEE 45, ABS rating up to 500 hp (2, 4, 6 poles) |
| Hazardous areas | CSA Class I, Div. 2, Groups B, C, D (T3); Class II, Div. 2, Groups F, G |
| Operation from a VFD | 20:1 VT, 10:1 CT |
| Efficiency | NEMA Premium |
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
Speeds of 3600, 1800, 1200 and 900 rpm, a 60 Hz network with a service factor of 1.15 and 50 Hz with a factor of 1.0. IEEE 841 places increased requirements on motors for oil refining in terms of vibration, bearing seals, corrosion protection, surface temperature and reliability. The motors are CSA certified for Class I, Division 2, Groups B, C, D with a temperature class no worse than T3 and from frame size 444T for Class II, Division 2, Groups F and G. Two-, four- and six-pole machines up to 500 hp comply with IEEE 45 for marine electrical installations and have passed design review by the American Bureau of Shipping (ABS), so they are used on ships and offshore platforms. The frequency control range is 20:1 for fan loads and 10:1 for constant load, and from 350 hp at constant torque 3:1. For larger medium-voltage machines in petrochemicals there are custom Rock 541 motors to API 541. The motors are part of the stock program in the USA and are supplied from stock for quick replacement.
How to choose
The series has versions: the lightweight MAX-E2/841 'Lite', vertical versions with a solid shaft and P-base flange for normal thrust pumps (TEFC SS Low Voltage Normal Thrust), and a version with a C-Face flange. For drives without IEEE 841 requirements the MAX-E1 up to 800 hp is suitable, and for Division 1 areas the TEXP series is needed. For ships and offshore facilities motors up to 500 hp with an ABS rating are taken.
Request a price and lead time
MAX-E2/841™ severe duty motors to IEEE 841, 1–500 hp, 460 V. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
What power and voltage do the MAX-E2/841 motors have?
From 1 to 500 hp at a voltage of 460 V, at 3600, 1800, 1200 and 900 rpm.
Can the MAX-E2/841 be used on ships?
Yes, two-, four- and six-pole machines up to 500 hp comply with IEEE 45 and have an ABS design review.
Which IEEE 841 requirements do these motors meet?
The motors meet or exceed IEEE 841. The standard raises requirements for vibration, bearing seals, corrosion protection and surface temperature.
What is the control range when the MAX-E2/841 runs from a VFD?
20:1 for fan loads and 10:1 for constant. From 350 hp at constant torque the range is 3:1.
Where is the MAX-E2/841 used?
At refineries, petrochemical, chemical and gas processing plants, pulp and paper mills, in the mining and metallurgical industries and on ships.
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Need a price, lead time or replacement?
Send us a request and we will confirm the configuration, lead time and delivery terms. We reply by email.