Calling Electricians: Fuse type question

Status
Not open for further replies.
Nov 5, 2001
18,366
3
0
We have an electrical panel with plug fuses. What is the difference between different fuse types? I see some are Type T, Type TL, Type S, a Time Delay. How do I decide what type I need?
 

Zim Hosein

Super Moderator | Elite Member
Super Moderator
Nov 27, 1999
65,208
400
126
Originally posted by: MikeyIs4Dcats
We have an electrical panel with plug fuses. What is the difference between different fuse types? I see some are Type T, Type TL, Type S, a Time Delay. How do I decide what type I need?

MikeyIs4Dcats, the fuse box doesn't have a label telling you what type fuses you should use?
 
Nov 5, 2001
18,366
3
0
Originally posted by: Zim Hosein
Originally posted by: MikeyIs4Dcats
We have an electrical panel with plug fuses. What is the difference between different fuse types? I see some are Type T, Type TL, Type S, a Time Delay. How do I decide what type I need?

MikeyIs4Dcats, the fuse box doesn't have a label telling you what type fuses you should use?

nope....it's old and scary looking.
 

Zim Hosein

Super Moderator | Elite Member
Super Moderator
Nov 27, 1999
65,208
400
126
Originally posted by: MikeyIs4Dcats
Originally posted by: Zim Hosein
Originally posted by: MikeyIs4Dcats
We have an electrical panel with plug fuses. What is the difference between different fuse types? I see some are Type T, Type TL, Type S, a Time Delay. How do I decide what type I need?

MikeyIs4Dcats, the fuse box doesn't have a label telling you what type fuses you should use?

nope....it's old and scary looking.

You should have an electrician look at your fusebox MikeyIs4Dcats; when I had a fuse box, they were identically rated fuses in the box, not a mix & match.
 

BigJ

Lifer
Nov 18, 2001
21,330
1
81
The difference between SL and TL fuses is their bases. An SL is a rejection base, while a TL is your typical edison base.

The difference between S and T fuses are the same.

SL and TL fuses are Loaded Link and are normally used in special, lighter applications, while S and T are used in heavier applications.
 
Nov 5, 2001
18,366
3
0
Originally posted by: Zim Hosein
Originally posted by: MikeyIs4Dcats
Originally posted by: Zim Hosein
Originally posted by: MikeyIs4Dcats
We have an electrical panel with plug fuses. What is the difference between different fuse types? I see some are Type T, Type TL, Type S, a Time Delay. How do I decide what type I need?

MikeyIs4Dcats, the fuse box doesn't have a label telling you what type fuses you should use?

nope....it's old and scary looking.

You should have an electrician look at your fusebox MikeyIs4Dcats; when I had a fuse box, they were identically rated fuses in the box, not a mix & match.

I've done some googling and finally found some info. Apparently Time Delay fuses are for circuits with a motor load, they allow for a power spike at motor startup. Type S fuses are newer, and are supposedly the best, but require an adapter.
 

edro

Lifer
Apr 5, 2002
24,326
68
91
Originally posted by: BigJ
The difference between SL and TL fuses is their bases. An SL is a rejection base, while a TL is your typical edison base.

The difference between S and T fuses are the same.

SL and TL fuses are Loaded Link and are normally used in special, lighter applications, while S and T are used in heavier applications.
I agree with him... because he sounds like he knows what he's saying.
 
Nov 5, 2001
18,366
3
0
Originally posted by: BigJ
The difference between SL and TL fuses is their bases. An SL is a rejection base, while a TL is your typical edison base.

The difference between S and T fuses are the same.

SL and TL fuses are Loaded Link and are normally used in special, lighter applications, while S and T are used in heavier applications.

so for a typical home am I safe using S & T? What is rejection base vs. edison base?
 

BigJ

Lifer
Nov 18, 2001
21,330
1
81
Originally posted by: MikeyIs4Dcats
Originally posted by: BigJ
The difference between SL and TL fuses is their bases. An SL is a rejection base, while a TL is your typical edison base.

The difference between S and T fuses are the same.

SL and TL fuses are Loaded Link and are normally used in special, lighter applications, while S and T are used in heavier applications.

so for a typical home am I safe using S & T? What is rejection base vs. edison base?

Rejection base won't let you screw in a higher amp fuse. Like you said above, you need a specific adapter that is installed once and does not come out.

Edison is a common base that will let you replace the current fuse with any new fuse, even if it's a higher amp fuse. If you don't know what you're doing, this can be a problem and you can start a fire.
 
Nov 5, 2001
18,366
3
0
Originally posted by: BigJ
Originally posted by: MikeyIs4Dcats
Originally posted by: BigJ
The difference between SL and TL fuses is their bases. An SL is a rejection base, while a TL is your typical edison base.

The difference between S and T fuses are the same.

SL and TL fuses are Loaded Link and are normally used in special, lighter applications, while S and T are used in heavier applications.

so for a typical home am I safe using S & T? What is rejection base vs. edison base?

Rejection base won't let you screw in a higher amp fuse. Like you said above, you need a specific adapter.

Edison is a common base that will let you replace the current fuse with any new fuse, even if it's a higher amp fuse. If you don't know what you're doing, this can be a problem and you can start a fire.

I see what you are talking about now. I have seen those before, but never knew what they were called. Most of the fuses in my box are 20s but there are 2 30 amps in there. Any way to tell if that is kosher? I'm assuming probably not..
 

BigJ

Lifer
Nov 18, 2001
21,330
1
81
Originally posted by: MikeyIs4Dcats
Originally posted by: BigJ
Originally posted by: MikeyIs4Dcats
Originally posted by: BigJ
The difference between SL and TL fuses is their bases. An SL is a rejection base, while a TL is your typical edison base.

The difference between S and T fuses are the same.

SL and TL fuses are Loaded Link and are normally used in special, lighter applications, while S and T are used in heavier applications.

so for a typical home am I safe using S & T? What is rejection base vs. edison base?

Rejection base won't let you screw in a higher amp fuse. Like you said above, you need a specific adapter.

Edison is a common base that will let you replace the current fuse with any new fuse, even if it's a higher amp fuse. If you don't know what you're doing, this can be a problem and you can start a fire.

I see what you are talking about now. I have seen those before, but never knew what they were called. Most of the fuses in my box are 20s but there are 2 30 amps in there. Any way to tell if that is kosher? I'm assuming probably not..

I couldn't tell you. You may have special wiring. You should have a piece of paper on your box that tells you everything.
 
Nov 5, 2001
18,366
3
0
Originally posted by: BigJ
Originally posted by: MikeyIs4Dcats
Originally posted by: BigJ
Originally posted by: MikeyIs4Dcats
Originally posted by: BigJ
The difference between SL and TL fuses is their bases. An SL is a rejection base, while a TL is your typical edison base.

The difference between S and T fuses are the same.

SL and TL fuses are Loaded Link and are normally used in special, lighter applications, while S and T are used in heavier applications.

so for a typical home am I safe using S & T? What is rejection base vs. edison base?

Rejection base won't let you screw in a higher amp fuse. Like you said above, you need a specific adapter.

Edison is a common base that will let you replace the current fuse with any new fuse, even if it's a higher amp fuse. If you don't know what you're doing, this can be a problem and you can start a fire.

I see what you are talking about now. I have seen those before, but never knew what they were called. Most of the fuses in my box are 20s but there are 2 30 amps in there. Any way to tell if that is kosher? I'm assuming probably not..

I couldn't tell you. You may have special wiring. You should have a piece of paper on your box that tells you everything.

Yeah...there's a panel label with some rooms scribbled on it and a diagram of the lugs and fuses, but nothing calling out fuse size.
 

NascarFool

Golden Member
Feb 29, 2000
1,001
0
71
Adapters are made to go in and not come out. We use them on furnaces and it prevents installing a higher rated fuse. I think the adapters will allow up to a 15 amp fuse. Time delay fuses are commonly used with air conditioners and refrigerators. They absorb the high amp draw on atart up. I think the large base fuses go up to 30 amp.
 

BigJ

Lifer
Nov 18, 2001
21,330
1
81
Originally posted by: MikeyIs4Dcats

Yeah...there's a panel label with some rooms scribbled on it and a diagram of the lugs and fuses, but nothing calling out fuse size.

The 2 30 amp fuses. Are they for the kitchen, or maybe washer/dryer?
 

skyking

Lifer
Nov 21, 2001
22,622
5,730
146
Note the wire size on the bigger fuses. It should be larger, and I would bet the 30's go to a 240v device, such as a dryer or electric range.
Don't change the size of fuze upwards, as bigJ has mentioned. If a fuse does blow, take it in to the hardware store as an example.
 

Dead3ye

Platinum Member
Sep 21, 2000
2,917
1
81
Dude, you need to get an electrician in there and replace that antiquated fuse box with a breaker box. He should check the house wiring as well.
 

BigJ

Lifer
Nov 18, 2001
21,330
1
81
Originally posted by: skyking
Note the wire size on the bigger fuses. It should be larger, and I would bet the 30's go to a 240v device, such as a dryer or electric range.
Don't change the size of fuze upwards, as bigJ has mentioned. If a fuse does blow, take it in to the hardware store as an example.

Good point. I didn't think about asking him to check the wire gauge.

Like you said, if it is for the kitchen or washer/dryer, then it very well may require the 30s.
 

BigJ

Lifer
Nov 18, 2001
21,330
1
81
Originally posted by: Dead3ye
Dude, you need to get an electrician in there and replace that antiquated fuse box with a breaker box. He should check the house wiring as well.

Big $$$$$

The wire alone is going to cost him at least several hundred.
 

Perknose

Forum Director & Omnipotent Overlord
Forum Director
Oct 9, 1999
46,730
10,256
146
LOL, is this a first? Fuse talk on Fusetalk? :Q
 
Nov 5, 2001
18,366
3
0
Originally posted by: BigJ
Originally posted by: MikeyIs4Dcats

Yeah...there's a panel label with some rooms scribbled on it and a diagram of the lugs and fuses, but nothing calling out fuse size.

The 2 30 amp fuses. Are they for the kitchen, or maybe washer/dryer?

Ok...I did some troubleshooting.

Fuse 1 (20A) Guest Bedroom, Office, Hall Light
Fuse 3 (20A) Laundry Room and Kitchen Light
Fuse 5 (now 15, was 30) Family Room (blew because of space heater and caused this thread)
Fuse 7 (30A) Unknown - Possibly AC? Couldn't find anything dead when pulled
Fuse 9 EMPTY

Fuse 2 (30A) Stuck and can't remove. Looks to be Master Bedroom, Bath, Living & Dining but since I can't pull it not sure
Fuse 4 EMPTY
Fuse 6 (now 15, was 30) Garbage Disposal
Fuse 8 EMPTY
Fuse 10 EMPTY

Breaker 1 Water Heater
Breaker 2 Range

Subpanel for HVAC
 

Zim Hosein

Super Moderator | Elite Member
Super Moderator
Nov 27, 1999
65,208
400
126
Originally posted by: MikeyIs4Dcats
Originally posted by: BigJ
Originally posted by: MikeyIs4Dcats

Yeah...there's a panel label with some rooms scribbled on it and a diagram of the lugs and fuses, but nothing calling out fuse size.

The 2 30 amp fuses. Are they for the kitchen, or maybe washer/dryer?

Ok...I did some troubleshooting.

Fuse 1 (20A) Guest Bedroom, Office, Hall Light
Fuse 3 (20A) Laundry Room and Kitchen Light
Fuse 5 (now 15, was 30) Family Room (blew because of space heater and caused this thread)
Fuse 7 (30A) Unknown - Possibly AC? Couldn't find anything dead when pulled
Fuse 9 EMPTY

Fuse 2 (30A) Stuck and can't remove. Looks to be Master Bedroom, Bath, Living & Dining but since I can't pull it not sure
Fuse 4 EMPTY
Fuse 6 (now 15, was 30) Garbage Disposal
Fuse 8 EMPTY
Fuse 10 EMPTY

Breaker 1 Water Heater
Breaker 2 Range

Subpanel for HVAC

You had all that info & didn't post it originally MikeyIs4Dcats? :|

 
Nov 5, 2001
18,366
3
0
Originally posted by: Zim Hosein
Originally posted by: MikeyIs4Dcats
Originally posted by: BigJ
Originally posted by: MikeyIs4Dcats

Yeah...there's a panel label with some rooms scribbled on it and a diagram of the lugs and fuses, but nothing calling out fuse size.

The 2 30 amp fuses. Are they for the kitchen, or maybe washer/dryer?

Ok...I did some troubleshooting.

Fuse 1 (20A) Guest Bedroom, Office, Hall Light
Fuse 3 (20A) Laundry Room and Kitchen Light
Fuse 5 (now 15, was 30) Family Room (blew because of space heater and caused this thread)
Fuse 7 (30A) Unknown - Possibly AC? Couldn't find anything dead when pulled
Fuse 9 EMPTY

Fuse 2 (30A) Stuck and can't remove. Looks to be Master Bedroom, Bath, Living & Dining but since I can't pull it not sure
Fuse 4 EMPTY
Fuse 6 (now 15, was 30) Garbage Disposal
Fuse 8 EMPTY
Fuse 10 EMPTY

Breaker 1 Water Heater
Breaker 2 Range

Subpanel for HVAC

You had all that info & didn't post it originally MikeyIs4Dcats? :|

No, halfway through this discussion I went and pulled the fuses.
 
Status
Not open for further replies.