×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Thermal Fuse for panel heater

Thermal Fuse for panel heater

Thermal Fuse for panel heater

(OP)
Hi – last year a purchased a panel heater but since it has stopped working, I have established that it is the thermal fuse that is gone.
I cannot find on the internet the same fuse, so I need some help to understand these components. Since I cannot find the exact same fuse, I need to figure how I can use an alternative. I can get a 4A fuse with a function temperature of 84°C. As the existing one is set to 65°C will this alternative one be too dangerous to use?

RE: Thermal Fuse for panel heater

When I had a similar problem I went to a local appliance repair shop and he pulled an identical fuse off a broken unit he had in his shop.

RE: Thermal Fuse for panel heater

This is the more common variety, there are a ton of them on ebay http://www.ebay.com/itm/5pcs-TF-Cutoff-Cut-off-10A...
Not electrically insulated, some heat shrink can be put over it. The are often used with heat conducting up the leads from a hot terminal. So length is important. The effective temperature can often be raised by making the lead longer than previous. Be sure to heat shrink lead with pliers when soldering to prevent fuse opening up.

RE: Thermal Fuse for panel heater

Thermal fuses are quite readily available. Here in New Zealand, I can get them from RS Components, Element14, and even the local Jaycar store.
Do not be tempted to up-rate the temperature rating of the thermal fuse, it has been chosen carefully by the manufacturer to limit the chance of the appliance catching fire.
I have replaced several of these fuses in coffee pots and the like, and have found that the way that the fuse is installed and the presence of any glass fibre insulation is critical to effecting a lasting repair.

RE: Thermal Fuse for panel heater

(OP)
When you say not to uprate the temp rating, do you mean the temp or the amps? could i use the 65C 10 amp alternative for my application, 65C 4 amp?

RE: Thermal Fuse for panel heater

Yes you can use a 10A thermal fuse in place of the 4A. It is the temperature rating that is critical.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close