You should add only with a proper load calculation. You should probably have a licensed electrician look at the situation first.
You can find a licensed electrical contractor at www.contraxtor.com to help with your electrical service upgrade
No tandem breakers are of the same value.
No. The 20 amp breaker is probably protecting a #12 wire. Connecting a 40 amp breaker to the 20 amp #12 wire would seriously overload the #12 wire. This means that if the load increased to a full 40 amps the insulation on the smaller size wire would most likely melt off and the wire could short out.
If you are referring to a cloths dryer, the answer depends on the requirements of the dryer. Most dryers require AWG#10 wire with a 30 amp fuse. If the wiring is AWG#12 then use a 20 amp breaker but never use it on AWG#10 which requires a 30 amp breaker. If you are referring to a hair dryer then yes a 20 amp breaker is fine.
20 amps on the circuit will trip it unless it is is broken. Then it may trip with a lower current or not at all... Any resistance added to the circuit from a bad or dirty connection will add to the total current causing it to trip sooner than expected.
For a continuous load the circuit breaker is set 25% higher than the load current. So a 20-amp breaker is used with a continuous 16-amp load.
20 amp
The maximum amperage rating for a circuit breaker that can be safely used with the electrical equipment in this room is 20 amps to ensure it does not exceed the capacity of the breaker.
No, you should not replace a 15 amp breaker with a 20 amp breaker without consulting a licensed electrician. The breaker size should match the wire size to prevent overheating and potential fire hazards.
yes, you can attach. but if the current through the line i.e. through the breaker exceeds 20 amp the breaker will trip. As long as the line carries 20 amp or less there is no problem.
The maximum amperage rating for a double breaker 20 amp is 20 amps.
The maximum current rating for a 20 amp Siemens breaker is 20 amps.
The maximum current rating for a 20 amp fuse breaker is 20 amps.
The maximum amperage capacity of a 20 amp breaker box is 20 amps.
The maximum amperage capacity of a 20 amp mini breaker is 20 amps.
The maximum amperage capacity of a 20 amp Challenger breaker is 20 amps.
The maximum current rating for a 20 amp Murray breaker is 20 amps.
The maximum load capacity of a Challenger 20 amp breaker is 20 amps.