On 05/06/2019 21:57, Harry Bloomfield wrote:


It is designed to work with 120/240v and has heat destroyed it, my idea
is to fit a replacement but halve the 240v here, to average 120v, using
a 1N4007 diode. It will no doubt open up little slower, but no problem.

Will it not get to the same temperature but just take longer? Putting
2.5W or 5W into a device that cannot dissipate that power to heatsink or
air flow will cause the temperature to rise above that required to push
out the plunger to its maximum travel.

If the shutters take longer to open will the actuator be in a static or
a lower airflow for longer?




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