Industrial Electric Motors

Electrical Motors are electromechanical devices that convert electrical energy to mechanical energy by producing a rotating force (torque) measured in revolutions per minute (RPM) and horsepower (HP). Medium size motors are designed and built to operate at 60 Hz with three phase voltage at 230 volts, 460 volts and 575 volts. These motors are used to drive compressors, pumps, fans, machine tools, conveyers and other processing and materials handling equipment in industrial sectors.

General purpose motors are usually totally enclosed fan cooled (TEFC) or open drip proof (ODP). TEFC motors are recommended for outdoor or wet environments. They protect against sever weather conditions, airborne contaminants and dust. ODP motors are recommended for indoor use without significant dust or airborne contaminants. The motors are designed with vented casings that keep liquid or solid particles from falling into the motor.

Explosion proof motors are required for industrial environments where combustible materials are present and the motor could be a source of unintended ignition. This can happen if a motor surface gets too hot and ignites gas, vapor or dust or if an arc from a malfunctioning motor ignites ambient material. An explosion proof motor should also be capable of containing an internal explosion without rupturing the casing.

IEEE 841 premium motors meet or exceed efficiency standards set by the Institute of Electrical and Electronics Engineers (IEEE). These motors provide better corrosion-resistance due to their cast iron casing and high-quality paint. Improved seals provide increased protection against liquid and solid contamination. The rotor cage is typically made of aluminum or copper and the fan is made of conductive plastic or a bronze alloy to prevent sparking. Class F insulation raises the max operating temperature to 311 degrees Fahrenheit and vibration allowances are 2.0 mm/s. While these specifications are specific to IEEE 841 premium motors, many of them are incorporated into Sever Duty Motors.


Products Per Page: Sort By: