What is "Duty Cycle"? Why is it so important?

Question

Accepted Answer

Duty Cycle (Energization Rate) is the ratio of the electromagnet's energized time to the total cycle time.
For example: An electromagnet with a 25% duty cycle means that within a 10-minute cycle, it can be energized for a maximum of 2.5 minutes and must be de-energized for 7.5 minutes to cool down.
Important Note: If the energized time exceeds the nominal duty cycle in actual application, the coil will burn out due to overheating. If you need the electromagnet to remain energized for a long time (such as for access control systems), please select a model with 100% continuous operation capability.

Duty Cycle = On-time / Total cycle time. Exceeding the rated duty cycle will cause the coil to overheat and burn out. For long-term holding applications, choose 100% duty cycle models.