Toggle Switch for a Seal, Masterpiece 350

Azmerelda

Grumbler in Training
Joined
Sep 27, 2010
Posts
2
Hi! Does anyone out there still have a Masterpiece 350 drymount press that would be willing to open up their housing for the toggle switch and tell me the specs of the toggle switch itself. I inherited my press and it came with a replacement toggle which someone else put in for me - I'm not electrically inclined. But I guess the new switch was not rated for heat(?) as it's housing promptly melted with the first use. It was a 25 amp switch in a black plastic housing. The original was thrown out for me so I have no way to run it down and Seal and DNK no longer carry this part. I think I can maybe go to a professional electricians supply house and find one, but I need to know what I'm looking for. And if you've ever had one of these machines you know that it's not like you can just pick it up and toss it in the car to take with you - must weigh 300lbs. If anyone can help me with this, I sure would appreciate it!
 
If you Google “Seal Bienfang parts”, you should be able to find just about any replacement items that you may need.

I fry thermostats on the 500T on occasion and have a reserve supply which I have gotten from United MFRs.

Welcome to The Grumble, by the way.
 
I rebuilt an old Seal 350 press not long ago and I replaced the rocker switch and LED indicator light with parts from Grainger Supply.
They have just about anything electrical if you can cross reference from the original. Try to buy the heaviest duty on/off switch you can get.
The one that I bought fit perfectly in the old hole and it has worked for a year so far.
25 amps should be enough. You may have another problem like the heating element is drawing too many amps or the wiring is undersized. Don't use an extension cord for the press and it really should be on it's own circuit.
 
Thank you for the suggestions. The problem is finding out what the original part was in order to cross reference. Is there a way for a novice to check if the thermostat is the problem? I know that Sherri said they did have the thermostat available, just not the toggle switch.
 
There are temperature test strips available to check the temperature setting of the thermostat. These strips will melt at specific temps to check the thermostat setting. Beyond that if the heating element is drawing too many amps or if there is too much resistance in the wiring, this would be a job for an electrician to check out.
You could bypass the switch, but I wouldn't recommend that, this could create a fire hazard.
 
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