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Manchester, NH 03103 USA
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Solenoids Glossary:

Solenoids Glossary

 

Force

Pull or push force developed by the solenoid when the coil is activated.
Stroke The distance the plunger must travel from its initial starting position until it is stopped or seated. It is good practice to minimize stroke to allow the most efficient use of the solenoids delivered energy, and to reduce plunger wear.
Duty Cycle The ratio of "on" time to the total cycle time for any cycle operation.
Duty Cycle (%) =
( Time On )
( Time On + Time Off )
x 100
Continuous Duty 100% duty cycle. A solenoid rated for 100% duty cycle may be energized at its rated voltage continuously, because its total coil temperature will not exceed maximum allowable ratings (105° C at an ambient of 25° C.)
Intermittent Duty Less than 100% duty cycle. Note: all intermittent duty cycle have an associated allowable "on" time which must not be exceeded. Intermittent duty coils provide considerably higher forces than continuous duty solenoids for a given model.
Residual Magnetism Any remaining magnetic force after the coil has been de-energized. Good solenoid design results in a negligible residual magnetism characteristic.
Maximum Allowable
Coil Temperature

The maximum operating temperature at which a solenoid may be operated without adversely affecting the materials of construction. Maximum allowable temperatures are generally determined by the temperature limits of the materials used in the coil system insulation material, i.e.:

Class A -- 105° C maximum
Class B -- 130° C maximum
Class F -- 155° C maximum
Class H -- 200° C maximum

 
 

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Last updated: 7/06/06