30+ Can I Use A 30 Amp Fuse Instead Of 20

Can I Use A 30 Amp Fuse Instead Of 20
. 15 amp receptacles are designed to receive. Shall i use a 15a or a 20a receptacle on a 20a circuit?

Ge 30 Amp 120 240 Volt 240 Watt Fused Ac Disconnect Tf30rcp The Home Depot
Ge 30 Amp 120 240 Volt 240 Watt Fused Ac Disconnect Tf30rcp The Home Depot from images.thdstatic.com
I need a 20 amp disconnect for an air to water heat pump. A 20 amp fuse should easily cope with the current demands of the motor but will blow if exceeds it if your wiring is rated for 10a and you use a 30a fuse, then you run the risk of the wiring pretending it is a fuse, and vaporizing within the you might put the 30 amp fuse instead and nothing bad happens. There is a big difference between protecting a kitchen at 20a instead of 15a because your microwave is a beast, and having a 30a fuse on a 5a headlamp circuit.


I know they don't always use 30 amps, and im probably not going to be using that much power, the thing was on sale so thats why i.

I cannot find a 30 amp mega fuse to connect fuse the solar charge controller at the lynx distributor. Ptc fuses don't interrupt current, but they reduce it. Neither the 20 amp or 15 amp fuse ever blew in recent history (several years). Calculate the maximum current that will be drawn by all of the components in i'd recommend a ptc fuse instead of the melting wire type to reduce cost and waste.