No more than 13 maximum on a 20 amp circuit.
#12/2wground & a 20 amp breaker should be enough for lights,receptales.
50 watt equals less than 1/2 amp current flow at 120 volts so you can have 30 light on a 15amp breaker or 40 on a twenty amp breaker.
If you are referring to house wiring then the answer is no. A breaker protects the wire size that is connected to the breaker. In home wiring most homes are wired with a #14 wire which is rated at 15 amps. That is why the wire is protected by a 15 amp breaker. The correct wire size to connect to a 40 amp breaker is a #8. This size wire is too large to connect to receptacles an light fixture terminals.
You have a double pole breaker for 240Volt supply. The maximum current is 15 amp.
A 30 amp breaker is usually used for a dedicated 30 amp device. Ordinary 15 amp receptacles can not be connected to a breaker of higher trip capacity than the rating of the receptacle. The wire size for a 30 amp breaker is #10 AWG.
#12/2wground & a 20 amp breaker should be enough for lights,receptales.
Should be fine if that is all that is on the breaker.
50 watt equals less than 1/2 amp current flow at 120 volts so you can have 30 light on a 15amp breaker or 40 on a twenty amp breaker.
Yes, it can.
A 15 amp breaker protecting # 14 wire.
Depends on the wattage. For example a 60W incandescent bulb draws about 1/2 amp so you could have thirty. Since you typically de-rate to 80% of the value of the breaker it would be 24.
50 amp breaker.
It's the amps that are controlled by the breaker not the volts. You can have a 600 volt 15 amp breaker, you can have a 347 volt 15 amp breaker. The breaker will trip when you exceed 15 AMPS.
A 32 amp fixture can not be fed from a 20 amp breaker as the breaker will trip every time.
Replace the 30 Amp Breaker with a 15 Amp breaker.
I'd try to stay about 16 amps to prevent the breaker from nuisance tripping. That is as many as 32 - 60 watt incandescent (normal) lights or 83 - 23 watt CFLs. In practical terms it is hard to overload a single circuit with lights or other small loads (just about anything using a receptacle except the obvious AC unit or vacuum cleaner).
If you are referring to house wiring then the answer is no. A breaker protects the wire size that is connected to the breaker. In home wiring most homes are wired with a #14 wire which is rated at 15 amps. That is why the wire is protected by a 15 amp breaker. The correct wire size to connect to a 40 amp breaker is a #8. This size wire is too large to connect to receptacles an light fixture terminals.