Instructables

Using 110v 60Hz Soldering station with 240v 50Hz?

Hi, I have recently acquired a 110v 60Hz Soldering station but i live in a country which uses 240v at 50Hz. I can get a stepdown transformer to convert the voltage (can choose between 50W and 1600W), but i am wondering will the different frequency damage the soldering station?
The soldering station i got is https://www.sparkfun.com/products/10707

iceng6 months ago

Low cost irons, that may have only a resistive heating element and a bi-metal thermal control don't care about 50/60 cps ie Hz.

Nor do super high-end soldering stations that use a switching power supply.

But the SOF unit clearly has a power xfmr = transformer and going from 60 to 50 Hz the xfmr will run hotter because of, iron magnetic saturation losses, unless the design of the xfmr windings was made to take the lower frequency into account.

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I would suspect you could run that size of 60Hz xfmr on 50Hz for 20 minutes before damage, but if you smell varnish stop and unplug the unit immediately !

michaelgohjs (author) 6 months ago

Hi, thanks for replying, i just checked and it only says 60Hz
I only have very basic knowledge regarding transformers and electronics, I was wondering if the frequancy affects the device at all since its just meant to heat the iron.

iceng6 months ago

See if the unit label specifies 50-60 Hz. After looking at the inner xfmr I am puzzled about the input Blue Black Blue wires. Usually need only two primary wires.

STD 4 wire xfmrs are 110/220 but three may be some kind SOF neat design.

Write SOF to see if thy have a trick to turn the xfmr into 220VAC input.