Fuse symbol on toroidal transformerUnderstanding transformer ratingsInrush Current Limiter for Torodial transformerHow to read this transformer labelModelling grounding reactor as transformerWhat clear plastic stripping is used to wrap a toroidal power transformer?Split rail toroidal power supply transformer amperage questionCurrent in Secondary Windings of Toroidal TransformerIf a transformer's thermal fuse is blown, would it show Open Circuit?Can I use a dual primary transformer to generate isolated 110v output?Small step down transformer fuse, primary or secondary?
Could the E-bike drivetrain wear down till needing replacement after 400 km?
Did US corporations pay demonstrators in the German demonstrations against article 13?
Do Legal Documents Require Signing In Standard Pen Colors?
What (else) happened July 1st 1858 in London?
Why is Arduino resetting while driving motors?
Reply 'no position' while the job posting is still there
Folder comparison
What's the difference between 違法 and 不法?
Is it possible to use .desktop files to open local pdf files on specific pages with a browser?
Can somebody explain Brexit in a few child-proof sentences?
THT: What is a squared annular “ring”?
Can the Supreme Court overturn an impeachment?
Diode in opposite direction?
Drawing ramified coverings with tikz
Is it improper etiquette to ask your opponent what his/her rating is before the game?
How does the reference system of the Majjhima Nikaya work?
On a tidally locked planet, would time be quantized?
Why has "pence" been used in this sentence, not "pences"?
Translation of Scottish 16th century church stained glass
Journal losing indexing services
We have a love-hate relationship
A social experiment. What is the worst that can happen?
Is there a conventional notation or name for the slip angle?
Is XSS in canonical link possible?
Fuse symbol on toroidal transformer
Understanding transformer ratingsInrush Current Limiter for Torodial transformerHow to read this transformer labelModelling grounding reactor as transformerWhat clear plastic stripping is used to wrap a toroidal power transformer?Split rail toroidal power supply transformer amperage questionCurrent in Secondary Windings of Toroidal TransformerIf a transformer's thermal fuse is blown, would it show Open Circuit?Can I use a dual primary transformer to generate isolated 110v output?Small step down transformer fuse, primary or secondary?
$begingroup$
I was searching today for a new 24V transformer, and I found that some of them have a "fuse" symbol on their label, and I was wondering what this fuse symbol means?
Does the fuse symbol on a transformer (toroidal or not) mean that the fuse is integrated in the transformer's winding?
Or does the "fuse" symbol try to suggest what kind of fuse has to be used with that transformer?
Here you can find an image with the transformer label:

(Image source: RS Components - 2 Output Toroidal Transformer, 120VA, 2 x 25V ac)
transformer power-electronics mains
$endgroup$
add a comment |
$begingroup$
I was searching today for a new 24V transformer, and I found that some of them have a "fuse" symbol on their label, and I was wondering what this fuse symbol means?
Does the fuse symbol on a transformer (toroidal or not) mean that the fuse is integrated in the transformer's winding?
Or does the "fuse" symbol try to suggest what kind of fuse has to be used with that transformer?
Here you can find an image with the transformer label:

(Image source: RS Components - 2 Output Toroidal Transformer, 120VA, 2 x 25V ac)
transformer power-electronics mains
$endgroup$
2
$begingroup$
There is no room to integrate the fuse. I have worked with such toroids and found that to install even a thermo-disc cutoff I had to epoxy it to the inside of the core, where there is the most amount of heat.
$endgroup$
– Sparky256
6 hours ago
add a comment |
$begingroup$
I was searching today for a new 24V transformer, and I found that some of them have a "fuse" symbol on their label, and I was wondering what this fuse symbol means?
Does the fuse symbol on a transformer (toroidal or not) mean that the fuse is integrated in the transformer's winding?
Or does the "fuse" symbol try to suggest what kind of fuse has to be used with that transformer?
Here you can find an image with the transformer label:

(Image source: RS Components - 2 Output Toroidal Transformer, 120VA, 2 x 25V ac)
transformer power-electronics mains
$endgroup$
I was searching today for a new 24V transformer, and I found that some of them have a "fuse" symbol on their label, and I was wondering what this fuse symbol means?
Does the fuse symbol on a transformer (toroidal or not) mean that the fuse is integrated in the transformer's winding?
Or does the "fuse" symbol try to suggest what kind of fuse has to be used with that transformer?
Here you can find an image with the transformer label:

(Image source: RS Components - 2 Output Toroidal Transformer, 120VA, 2 x 25V ac)
transformer power-electronics mains
transformer power-electronics mains
edited 1 hour ago
SamGibson
11.5k41739
11.5k41739
asked 6 hours ago
mike_mikemike_mike
11817
11817
2
$begingroup$
There is no room to integrate the fuse. I have worked with such toroids and found that to install even a thermo-disc cutoff I had to epoxy it to the inside of the core, where there is the most amount of heat.
$endgroup$
– Sparky256
6 hours ago
add a comment |
2
$begingroup$
There is no room to integrate the fuse. I have worked with such toroids and found that to install even a thermo-disc cutoff I had to epoxy it to the inside of the core, where there is the most amount of heat.
$endgroup$
– Sparky256
6 hours ago
2
2
$begingroup$
There is no room to integrate the fuse. I have worked with such toroids and found that to install even a thermo-disc cutoff I had to epoxy it to the inside of the core, where there is the most amount of heat.
$endgroup$
– Sparky256
6 hours ago
$begingroup$
There is no room to integrate the fuse. I have worked with such toroids and found that to install even a thermo-disc cutoff I had to epoxy it to the inside of the core, where there is the most amount of heat.
$endgroup$
– Sparky256
6 hours ago
add a comment |
1 Answer
1
active
oldest
votes
$begingroup$
In this case the fuse symbol indicates the fuse rating you should use. 2.40AT means you should use a 2.40A slow acting fuse (type T, T stands for Trage). Trage can be translated from German to sluggish, slow-moving. You can verify that the 2.40A matches the rated current for each secondary of the device you are considering.
The datasheet mentions no fuse, so it should not be integrated.
$endgroup$
$begingroup$
So what is the 'T' in 2.40AT?
$endgroup$
– Transistor
4 hours ago
$begingroup$
@Transistor it's the speed of the fuse, I will change my answer.
$endgroup$
– xuva
3 hours ago
1
$begingroup$
I found the same info in the RS catalog. See 2.25A Glass Cartridge Fuse, 5 x 20mm, Speed T. The datasheet is a bit vague although it does give the $ I^2t $ ratings.
$endgroup$
– Transistor
3 hours ago
$begingroup$
'T' stands for Trage which stands for ...? (I'm making you work for your +1!)
$endgroup$
– Transistor
3 hours ago
$begingroup$
Yes, you are, haha. Learned more than I expected from it though.
$endgroup$
– xuva
3 hours ago
add a comment |
Your Answer
StackExchange.ifUsing("editor", function ()
return StackExchange.using("mathjaxEditing", function ()
StackExchange.MarkdownEditor.creationCallbacks.add(function (editor, postfix)
StackExchange.mathjaxEditing.prepareWmdForMathJax(editor, postfix, [["\$", "\$"]]);
);
);
, "mathjax-editing");
StackExchange.ifUsing("editor", function ()
return StackExchange.using("schematics", function ()
StackExchange.schematics.init();
);
, "cicuitlab");
StackExchange.ready(function()
var channelOptions =
tags: "".split(" "),
id: "135"
;
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function()
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled)
StackExchange.using("snippets", function()
createEditor();
);
else
createEditor();
);
function createEditor()
StackExchange.prepareEditor(
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: false,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: null,
bindNavPrevention: true,
postfix: "",
imageUploader:
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
,
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
);
);
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2felectronics.stackexchange.com%2fquestions%2f428843%2ffuse-symbol-on-toroidal-transformer%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
$begingroup$
In this case the fuse symbol indicates the fuse rating you should use. 2.40AT means you should use a 2.40A slow acting fuse (type T, T stands for Trage). Trage can be translated from German to sluggish, slow-moving. You can verify that the 2.40A matches the rated current for each secondary of the device you are considering.
The datasheet mentions no fuse, so it should not be integrated.
$endgroup$
$begingroup$
So what is the 'T' in 2.40AT?
$endgroup$
– Transistor
4 hours ago
$begingroup$
@Transistor it's the speed of the fuse, I will change my answer.
$endgroup$
– xuva
3 hours ago
1
$begingroup$
I found the same info in the RS catalog. See 2.25A Glass Cartridge Fuse, 5 x 20mm, Speed T. The datasheet is a bit vague although it does give the $ I^2t $ ratings.
$endgroup$
– Transistor
3 hours ago
$begingroup$
'T' stands for Trage which stands for ...? (I'm making you work for your +1!)
$endgroup$
– Transistor
3 hours ago
$begingroup$
Yes, you are, haha. Learned more than I expected from it though.
$endgroup$
– xuva
3 hours ago
add a comment |
$begingroup$
In this case the fuse symbol indicates the fuse rating you should use. 2.40AT means you should use a 2.40A slow acting fuse (type T, T stands for Trage). Trage can be translated from German to sluggish, slow-moving. You can verify that the 2.40A matches the rated current for each secondary of the device you are considering.
The datasheet mentions no fuse, so it should not be integrated.
$endgroup$
$begingroup$
So what is the 'T' in 2.40AT?
$endgroup$
– Transistor
4 hours ago
$begingroup$
@Transistor it's the speed of the fuse, I will change my answer.
$endgroup$
– xuva
3 hours ago
1
$begingroup$
I found the same info in the RS catalog. See 2.25A Glass Cartridge Fuse, 5 x 20mm, Speed T. The datasheet is a bit vague although it does give the $ I^2t $ ratings.
$endgroup$
– Transistor
3 hours ago
$begingroup$
'T' stands for Trage which stands for ...? (I'm making you work for your +1!)
$endgroup$
– Transistor
3 hours ago
$begingroup$
Yes, you are, haha. Learned more than I expected from it though.
$endgroup$
– xuva
3 hours ago
add a comment |
$begingroup$
In this case the fuse symbol indicates the fuse rating you should use. 2.40AT means you should use a 2.40A slow acting fuse (type T, T stands for Trage). Trage can be translated from German to sluggish, slow-moving. You can verify that the 2.40A matches the rated current for each secondary of the device you are considering.
The datasheet mentions no fuse, so it should not be integrated.
$endgroup$
In this case the fuse symbol indicates the fuse rating you should use. 2.40AT means you should use a 2.40A slow acting fuse (type T, T stands for Trage). Trage can be translated from German to sluggish, slow-moving. You can verify that the 2.40A matches the rated current for each secondary of the device you are considering.
The datasheet mentions no fuse, so it should not be integrated.
edited 3 hours ago
answered 4 hours ago
xuvaxuva
338113
338113
$begingroup$
So what is the 'T' in 2.40AT?
$endgroup$
– Transistor
4 hours ago
$begingroup$
@Transistor it's the speed of the fuse, I will change my answer.
$endgroup$
– xuva
3 hours ago
1
$begingroup$
I found the same info in the RS catalog. See 2.25A Glass Cartridge Fuse, 5 x 20mm, Speed T. The datasheet is a bit vague although it does give the $ I^2t $ ratings.
$endgroup$
– Transistor
3 hours ago
$begingroup$
'T' stands for Trage which stands for ...? (I'm making you work for your +1!)
$endgroup$
– Transistor
3 hours ago
$begingroup$
Yes, you are, haha. Learned more than I expected from it though.
$endgroup$
– xuva
3 hours ago
add a comment |
$begingroup$
So what is the 'T' in 2.40AT?
$endgroup$
– Transistor
4 hours ago
$begingroup$
@Transistor it's the speed of the fuse, I will change my answer.
$endgroup$
– xuva
3 hours ago
1
$begingroup$
I found the same info in the RS catalog. See 2.25A Glass Cartridge Fuse, 5 x 20mm, Speed T. The datasheet is a bit vague although it does give the $ I^2t $ ratings.
$endgroup$
– Transistor
3 hours ago
$begingroup$
'T' stands for Trage which stands for ...? (I'm making you work for your +1!)
$endgroup$
– Transistor
3 hours ago
$begingroup$
Yes, you are, haha. Learned more than I expected from it though.
$endgroup$
– xuva
3 hours ago
$begingroup$
So what is the 'T' in 2.40AT?
$endgroup$
– Transistor
4 hours ago
$begingroup$
So what is the 'T' in 2.40AT?
$endgroup$
– Transistor
4 hours ago
$begingroup$
@Transistor it's the speed of the fuse, I will change my answer.
$endgroup$
– xuva
3 hours ago
$begingroup$
@Transistor it's the speed of the fuse, I will change my answer.
$endgroup$
– xuva
3 hours ago
1
1
$begingroup$
I found the same info in the RS catalog. See 2.25A Glass Cartridge Fuse, 5 x 20mm, Speed T. The datasheet is a bit vague although it does give the $ I^2t $ ratings.
$endgroup$
– Transistor
3 hours ago
$begingroup$
I found the same info in the RS catalog. See 2.25A Glass Cartridge Fuse, 5 x 20mm, Speed T. The datasheet is a bit vague although it does give the $ I^2t $ ratings.
$endgroup$
– Transistor
3 hours ago
$begingroup$
'T' stands for Trage which stands for ...? (I'm making you work for your +1!)
$endgroup$
– Transistor
3 hours ago
$begingroup$
'T' stands for Trage which stands for ...? (I'm making you work for your +1!)
$endgroup$
– Transistor
3 hours ago
$begingroup$
Yes, you are, haha. Learned more than I expected from it though.
$endgroup$
– xuva
3 hours ago
$begingroup$
Yes, you are, haha. Learned more than I expected from it though.
$endgroup$
– xuva
3 hours ago
add a comment |
Thanks for contributing an answer to Electrical Engineering Stack Exchange!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
Use MathJax to format equations. MathJax reference.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2felectronics.stackexchange.com%2fquestions%2f428843%2ffuse-symbol-on-toroidal-transformer%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
2
$begingroup$
There is no room to integrate the fuse. I have worked with such toroids and found that to install even a thermo-disc cutoff I had to epoxy it to the inside of the core, where there is the most amount of heat.
$endgroup$
– Sparky256
6 hours ago