No, only one GFCI per circuit.
Your question is a bit vague, but let's try a two part answer. If you have a GFCI breaker in an electric panel you should only have one connection at the breaker, but the breaker will protect all devices on the circuit. If you are talking about a GFCI outlet, they are equipped to extend the GFCI protection to other non-GFCI outlets by using the proper "output" connection on the GFCI.
Not if the GFCI breaker is supplying the circuit you are wanting to put the GFCI receptacle into.
To install a GFCI breaker, first turn off the power to the circuit at the main electrical panel. Remove the panel cover and locate the circuit breaker you want to replace with the GFCI breaker. Disconnect the wires from the existing breaker and connect them to the new GFCI breaker according to the manufacturer's instructions. Secure the GFCI breaker in place and replace the panel cover. Turn the power back on and test the GFCI breaker to ensure it is working properly.
Yes, it is recommended to have both GFCI outlets and a GFCI breaker installed for maximum electrical safety in your home.
To install a GFCI breaker in a circuit, first turn off the power to the circuit at the main electrical panel. Remove the panel cover and locate the circuit breaker that needs to be replaced with the GFCI breaker. Disconnect the wires from the existing breaker and connect them to the new GFCI breaker according to the manufacturer's instructions. Secure the GFCI breaker in place and replace the panel cover. Turn the power back on and test the GFCI breaker to ensure it is working properly.
To properly install a GFCI breaker in your electrical system, first turn off the power to the circuit you will be working on. Remove the panel cover and locate the circuit breaker you will be replacing with the GFCI breaker. Disconnect the wires from the old breaker and connect them to the new GFCI breaker according to the manufacturer's instructions. Secure the GFCI breaker in place and replace the panel cover. Turn the power back on and test the GFCI breaker to ensure it is working properly.
A GFCI device in a breaker is intended to trip the breaker open when a ground fault is sensed in the circuit that the breaker is protecting.
To replace a GFCI breaker, first turn off the power to the circuit at the main electrical panel. Remove the panel cover and locate the GFCI breaker. Disconnect the wires from the old breaker and remove it. Install the new GFCI breaker in its place and reconnect the wires. Secure the breaker in the panel and replace the cover. Turn the power back on and test the GFCI breaker to ensure it is working properly.
The recommended type of breaker to use for a hot tub that requires a 50 amp GFCI breaker for safety is a 50 amp GFCI breaker.
The recommended type of GFCI 50 amp breaker for outdoor electrical installations is a weather-resistant GFCI breaker.
I'm not positive but, as far as I know, one is required on a 120V heater but not on a 220V heater. Even if a GFCI isn't required I would install one anyway for the safety of your family and friends. These devices do work and are well worth the cost. Call a Professional... Either a GFCI outlet or a GFCI breaker, and I think I'd use the GFCI outlet because the reset on an outlet is closer to the pool than the breaker would be. But put it far enough away from the pool that you've got to get out to reset it. I think that's code; if it's not it should be.
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.