Duty cycle

Solenoid duty cycle explained

Duty cycle describes how long a solenoid is energized compared with the total on/off cycle. It is one of the most important inputs for preventing excessive heat.

Why it matters

A lower resistance coil can draw more current and generate stronger force, but it also creates more heat. If the solenoid remains energized beyond its rated duty cycle, the coil temperature can rise too high.

What to specify

  • On-time per actuation
  • Off-time between actuations
  • Number of actuations per minute or hour
  • Ambient temperature and enclosure condition
  • Continuous duty or intermittent duty requirement