If you will notice, your individual breakers add up to much more than 100amps. So it is entirely possible not to trip an individual breaker but still draw more than 100amps, which would cause the main to trip.
If you haven't had this problem in the past, I wouldn't worry about it unless it happens again. If it does, you need to upgrade your service to more amps.
It is entirely possible your main breaker has malfunctioned but that is not easy to test. If it is replaceable, and if you have further problems, you can consider replacing the main breaker to see if that fixes the problem. That is much less expensive than upgrading the service.
A short, which will trip the main breaker.
If you don't have a Westinghouse breaker, you should use a breaker that is compatible with your electrical panel. Consult the panel's specifications or a qualified electrician to determine the appropriate replacement breaker for your specific panel. Using an incompatible breaker can be dangerous and may violate electrical codes.
Look to see if the 30 amp panel is fed with a two wire or a three wire. If it is a two wire then you are out of luck. If the panel is fed with a three wire then the panel should have the neutral terminated in the panel. It is this neutral that you need for 120 volt connections. You didn't state how many panel slots there are in the panel. If you are able install a 15 amp breaker into the panel and connect the wires going to the load. The black wire will go to the breaker and the white wire will go to the neutral bar in the panel.
In North America the smallest size breaker found in a home distribution panel is rated at 15 amps
No, breaker panels should not be daisy-chained as it can create a safety hazard and overload the system. Each breaker panel should have its own dedicated circuit from the main service panel.
A short, which will trip the main breaker.
The panel and breaker have to be of the same manufacturer. This way the breaker will fit into the panel. If the panel has a push in bus bar, the breaker must also be the type to accept the bus bar. If the bus bars in the panel are of the bolt in type then the breaker also has to be a bolt in breaker.
To properly add a breaker to a panel, first turn off the main power switch. Remove the panel cover and identify a free slot for the new breaker. Connect the breaker to the panel's bus bar and then connect the circuit wire to the breaker. Secure the breaker in place and replace the panel cover. Finally, turn the main power switch back on.
To add a breaker to a panel, follow these steps: Turn off the main power supply to the panel. Remove the panel cover. Identify a free slot in the panel for the new breaker. Insert the new breaker into the slot and secure it in place. Connect the wires to the new breaker according to the manufacturer's instructions. Replace the panel cover and turn the power back on.
To install a 50 amp breaker in an electrical panel, first turn off the power to the panel. Remove the panel cover and locate an open slot for the breaker. Insert the breaker into the slot and connect the wires to the breaker terminals. Make sure the wires are securely attached and tighten the screws. Finally, replace the panel cover and turn the power back on to test the breaker.
It is inserting a breaker into a service panel.
To safely remove a breaker from a panel, first turn off the main power switch to the panel. Use a screwdriver to loosen the screws holding the breaker in place, then carefully pull the breaker out. Be sure to handle the breaker with caution to avoid any electrical shocks.
To install a GFCI breaker panel in a residential electrical system, follow these steps: Turn off the power to the electrical panel. Remove the cover of the electrical panel. Identify the circuit where the GFCI breaker will be installed. Install the GFCI breaker in the panel according to the manufacturer's instructions. Connect the wires to the GFCI breaker, following proper wiring techniques. Secure the breaker in place and replace the panel cover. Turn the power back on and test the GFCI breaker to ensure it is working properly.
No, a Cutler Hammer will not work in a GE panel or vice versa.
The recommended range breaker size for a circuit breaker in a residential electrical panel is typically between 15 to 20 amps.
To replace a 200 amp main breaker in a residential electrical panel, follow these steps: Turn off the main power supply to the panel. Remove the panel cover to access the breaker. Disconnect the wires connected to the existing breaker. Unscrew and remove the old breaker. Install the new 200 amp main breaker in the same position. Connect the wires to the new breaker. Secure the breaker in place and replace the panel cover. Turn the main power supply back on and test the new breaker.
The main breaker in your electrical panel may have tripped due to an overload of electrical current flowing through the circuit, a short circuit, or a ground fault. These issues can cause the breaker to trip as a safety measure to prevent damage to the electrical system or potential fire hazards.