1.21 Gigawatts
Member
- Location
- Norwalk, CT
A standard inverse time CB will allow the unit to start, not a problem.
Finally getting around to this. Crazy how the supply house, Home Cheapo & Lowes dont have a 30A fuseable disconnect in stock this week. I wanted to use that plus a 15A time delay fuse
Do you think it would be safe to use a 60A disconnect with 35A time delay fuse? Breaker inside would be 20A of course.
Specs for unit
View attachment 20790
What I got..
View attachment 20791
The data you posted requires a 20 amp circuit so the 15 amp fuses are too small. Why the fused disconnect are fuses required?
Not required, just seems easier to get and what most people use around here? I asked the supply house about the standard inverse time CB you mentioned and he kinda brushed away from it so I gave up on that.
So I guess the 35A fuse would work? Is the rating on these time delay fuses the max load? In other words if the condensor starts with 43A how would a 35A fuse be sufficient? Unless it's capable of that extra surge?
A standard $5 home depot circuit breaker is an inverse time breaker as are most others. According to the data sheet all you need is a 20 amp circuit breaker and 20 amp conductors. If you want to provide a disconnecting means it doesn't need to be fused.
A 20A breaker will support a 43A start up? No way. I think the time delay fuse is safer to use IMO. I think I read it somewhere in the manual as well, I cant find it now. Ugh.
The data say 20 amp circuit required so that is it. Install the fuses if you like but IMO you're wasting time and money. A $5-20 amp CB will work just fine.
Quit fretting over the startup Amps, that lasts probably less than a second. An “inverse time” breaker means the breaker trips faster on higher current. But that is based on 600% for 10 seconds on the outside. This thing will be no more than 1 second. Fugedaboudit.