How old are these fuses?

Users who are viewing this thread

Phillbo

Member
Messages
103
Reaction score
0
Points
16
Location
Arizona
If you were to guess, How old would you say these fuse's are?

Not even sure what the one on the right is .... Should these be in a 5 ton heat pump rated for 50amp? They are 45amp.
 

Attachments

  • Fuse 007.jpg
    Fuse 007.jpg
    41.1 KB · Views: 242

Jimbo

Plumber
Messages
8,918
Reaction score
18
Points
0
Location
San Diego, CA
Well, I don't think you see Gould fuses any more. I could be wrong, but I think FerrazShawmut bought up that brand.

Anyway, 45 amps could be in the ballpark for a 5 ton condenser.
 

Thatguy

Homeowner
Messages
1,454
Reaction score
3
Points
0
Location
MD
Should these be in a 5 ton heat pump rated for 50amp? They are 45amp.
I got 24A for a 5 ton heat pump with COP = 3 at 240v. Start up current may be 6x higher.

Wrap the fuse in several layers of newspaper and hit it with a hammer. If the fuse element inside is only cracked in one place it was a fatigue failure or a mild overload. If the element is splattered it was a heavy overload.
 
Last edited:
Top
Hey, wait a minute.

This is awkward, but...

It looks like you're using an ad blocker. We get it, but (1) terrylove.com can't live without ads, and (2) ad blockers can cause issues with videos and comments. If you'd like to support the site, please allow ads.

If any particular ad is your REASON for blocking ads, please let us know. We might be able to do something about it. Thanks.
I've Disabled AdBlock    No Thanks