Cool-Running Motors Mean Exceptional Life
Heat kills motors. A cool-running motor lasts longer because its insulation lasts longer. Why? Because for every 10oC drop in operating temperature, the expected life of the insulation system doubles.
Most Lincoln motors are engineered to operate within a temperature rise class at least one level below the insulation system class. For example, a premium Class F plus insulated Lincoln motor would operate at service factor load within Class B allowable limits. Similarly, a Class H insulated Lincoln motor would operate at service factor load within Class F allowable limits. This design practice yields a temperature cushion of at least 25oC!
| Insulation System Class |
Total Temperature Capability |
| A |
105oC |
| B |
130oC |
| F |
155oC |
| H |
180oC |
Most competitors utilize their motor's insulation system to the fullest extent. For example, their Class F insulated motor would operate at service factor load within Class F allowable limits.
What's it all mean to you? The Lincoln motor runs cooler and as a result will have an insulation system life expectancy of at least five (5) times longer than the equivalent competitive motor, thus increasing process up-time. You'll benefit from improved plant efficiency and reduced maintenance costs.
