MAX-E1® NEMA Premium induction motors 0.75–800 hp (TEFC)

Country: USA · Model: MAX-E1

Low-voltage three-phase general purpose induction motors of the NEMA Premium class in the totally enclosed fan cooled (TEFC) version, 0.75–800 hp, roughly 0.55–600 kW. Speeds of 3600, 1800, 1200 and 900 rpm, a 60 Hz network with a service factor of 1.15 or 50 Hz with a factor of 1.0. The motors are installed on pumps, fans, compressors and conveyors.

Power: 0.75–800 hp (≈0.55–600 kW)
Speed: 3600 / 1800 / 1200 / 900 rpm
Efficiency: NEMA Premium
Enclosure: TEFC

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Technical specifications

Power	0.75–800 hp (≈0.55–600 kW)
Speed	3600 / 1800 / 1200 / 900 rpm
Efficiency	NEMA Premium
Enclosure	TEFC
Supply	60 Hz, SF 1.15; 50 Hz, SF 1.0
Hazardous areas	CSA Class I, Div. 2, Groups B, C, D (T3); Class II, Div. 2, Groups F, G (from 444T)
Operation from a VFD	20:1 variable torque, 10:1 constant (from 350 hp — 3:1)

Specifications are taken from the manufacturer’s technical documentation. Updated 11/09/2026.

Description

The power range starts at 3/4 hp and reaches 800 hp. The motors have CSA certification for hazardous areas Class I, Division 2, Groups B, C, D with temperature class T3 and, starting from frame size 444T, for Class II, Division 2, Groups F and G with the same class T3. They are designed to run from a frequency converter, with a control range of 20:1 for fan loads and 10:1 for constant torque, and for 350 hp and above 3:1 at constant torque. The series is among the main stocked ones, so machines are supplied from warehouses in the USA for quick replacement of failed ones. Fields of use include water supply, oil and gas and chemicals, mining, the food industry and heating, ventilation and air conditioning systems. High efficiency lowers operating costs, and the manufacturer's website has a payback calculator for energy-efficient motors. The low-voltage line also includes motors with a steel frame, stainless steel motors for the food industry, single-phase motors and metric IE3 motors.

How to choose

The motor is selected by power, speed and conditions in the installation area. For general industrial drives the MAX-E1 is suitable. If the project requires IEEE 841 for petrochemicals, look at the MAX-E2/841 at 1–500 hp at 460 V, and for Division 1 areas the TEXP series at 1–400 hp. For drives with a VFD and constant torque from 350 hp the range narrows, which must be taken into account when choosing the power.

Request a price and lead time

MAX-E1® NEMA Premium induction motors 0.75–800 hp (TEFC). We reply within one business day.

Or email office@usk.ua or call +38 (044) 339-50-20.

FAQ

What powers and speeds does the MAX-E1 series have?

From 3/4 to 800 hp at 3600, 1800, 1200 and 900 rpm.

Can the MAX-E1 be used in hazardous areas?

The motors are CSA certified for Class I, Division 2, Groups B, C, D (T3) and from frame size 444T for Class II, Division 2, Groups F and G. For Division 1 areas there is the TEXP series.

What is the control range when the MAX-E1 is fed from a VFD?

20:1 for fan loads and 10:1 for constant torque. For 350 hp and above at constant torque the range is 3:1.

Which networks are the MAX-E1 motors designed for?

For 60 Hz with a service factor of 1.15 in continuous duty and for 50 Hz with a factor of 1.0.

What efficiency class and enclosure type does the MAX-E1 have?

NEMA Premium class, totally enclosed fan cooled TEFC version.