Basic Electric Motor Terms:

**Horsepower:**Determined by the equipment requirements, total load, operating conditions, and speed.**Voltage:**The voltage of a motor is determined by the supply to which it is attached. The common voltages are 115, 200, 208, 230, 460, 575.**Phase:**The most common power supplies are either single- or three-phase.**Common Motor Types:**Totally Enclosed(TE), Totally Enclosed Non-Ventilated(TENV), Energy Efficient (EE or XL), or Totally Enclosed Fan Cooled (TEFC).**Cycles:**60 Hz (cycles per second) AC power is common throughout the US and 50 Hz is common in many foreign countries.

An example of the motor designation is:

- 1/2 HP- 230V- 3 Ph.60 Hz. TEFC or 1/2HP/230V/3Ph/60 Hz. TEFC

This is translated as 1/2 Horsepower, 230 Volts, 3 Phase, 60 Hertz, Totally Enclosed Fan Cooled.

- Horsepower ratings in the catalog and website are calculated according to the standard speed listed for that conveyor. When increasing the speed, more horsepower may be needed. As a rule of thumb, it will take twice as much horsepower to move a given package at 130 FPM than at 65 FPM. The formula below may help to determine the approximate power requirements:

__HORSEPOWER IN CATALOG CHART (based on 65 FPM) X YOUR DESIRED SPEED (In FPM)__

65**Example:**- Model TA, 11 ft long requires 1/2 Hp motor at 65 Feet per minute for a total load of 320 pounds.
- You desire your conveyor to operate at 90 Feet Per Minute.
- Calculate as follows: (1/2 X 90) / 65 = .69
- You should select the next highest horsepower or 3/4 Hp.

This formula may be used to give you a good estimate. Ask us to do a complete horsepower calculation if you have any concerns.

- The service life of a conveyor running at a higher speed may be shortened considerably.
- Most conveyors are not designed to run over 200 FPM. When they do, some parts may need to be balanced to prevent excessive vibration, and special bearings may be required.
- The type of belting used on a conveyor may also need to be considered.
- NOTE: Pallet handling conveyors generally operate at 30 FPM and 30 may be substituted in the denominator of the formula

**Totally Enclosed:**A motor enclosure, which prevents free exchange of air between the inside and the outside of the enclosure but is not airtight. This is the standard motor on many conveyors.**Totally Enclosed Fan-Cooled:**Provides for exterior cooling by means of a fan integral with the motor, but external to the enclosed parts.**Totally Enclosed Non-Ventilated:**Has no provisions for external cooling of the enclosed parts. The motor is cooled by heat radiation from the exterior surfaces to the surrounding atmosphere.**Energy Efficient:**Energy efficiency motors are specially designed to be more effective at converting electrical input to mechanical output.