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If you put a 85 amp breaker in there it will overheat from the starting and stopping of the motor. The extra size of the breaker insures that the furnace will run without interruption and without overheating the breaker. And electric motor can draw three times the amperage rated on start up momentarily. This is why there is need of extra amperage ratings.
What else can I help you with?
Can a 100 breaker box handle a 15 kw furnace?
The equation for amperage is I = W/E, Amps = Watts/Volts. The amperage for the furnace would be, Amps = 15000/240 = 62.5 amps. So to answer the question, yes a 100 amp breaker with a #4 copper conductor will be sufficient to operate a 15 kW furnace. A 70 amp breaker will work but it is cutting the edge a bit too fine as you don't need the furnace to trip off during the winter months (northern hemisphere) if you are away from your home for an extended period of time.
What is the difference between a 100 amp breaker box and a 125 breaker box?
The amperage capacity of the main bus bars and the connection of the main breaker to the bus bars.
What wire size do you need for a 125 amp panel with a 100 amp main breaker?
A #3 copper conductor with an insulation factor of 90 degrees C is rated at 115 amps. Even though the panel is rated at a higher amperage it is the main breaker that governs the wire size.
If you have a 125 amp breaker box on the pole with a 125 amp breaker going to your house and you get a hot tub that needs a 60 amp GFI breaker would that overload the box?
It depends on what else you are running in the house. Add up your amperage to see if it is more than the 125amp rating. Which should be below 105 amps constant to keep from overheating the main breaker. If you are not running a big central ac system or a electric oven and water heater you should have no problem running the hot tub.
What size breaker do you need for a 40 gallon electric water heater?
Usually 30 amp
What is the maximum current capacity of a 125 amp breaker?
The maximum current capacity of a 125 amp breaker is 125 amps.
What is the maximum amperage rating of the 125 amp Homeline breaker?
The maximum amperage rating of the 125 amp Homeline breaker is 125 amps.
What is the maximum amperage capacity of a 125 amp panel with main breaker?
The maximum amperage capacity of a 125 amp panel with a main breaker is 125 amps.
What is the maximum amperage rating of the 125 amp Square D breaker?
The maximum amperage rating of a 125 amp Square D breaker is 125 amps.
What is the maximum amperage rating of the Square D 125 amp breaker?
The maximum amperage rating of the Square D 125 amp breaker is 125 amps.
What is the compatibility of a Square D 125 amp breaker with my electrical panel?
To determine the compatibility of a Square D 125 amp breaker with your electrical panel, you need to check the manufacturer's specifications for your panel to see if it is rated to handle a 125 amp breaker. It is important to ensure that the breaker is compatible with the panel to avoid any safety hazards or damage to the electrical system.
What is the maximum amperage capacity of the 125 amp main breaker in this electrical panel?
The maximum amperage capacity of the 125 amp main breaker in the electrical panel is 125 amps.
What is the maximum current rating for the circuit breaker required for a 125 amp load?
The maximum current rating for the circuit breaker required for a 125 amp load is 125 amps.
What is the recommended size for the main breaker in a residential electrical panel, specifically for a 125 amp main breaker?
The recommended size for a main breaker in a residential electrical panel with a 125 amp main breaker is typically 150 amps.
Does a water furnace use a 40 amp breaker?
Depends on the manufacture of the water furnace. Look at the data sheet or data plate on the furnace of contact the manufacture.
What are the necessary specifications for installing a 125 amp breaker box in a residential property?
To install a 125 amp breaker box in a residential property, you will need to ensure that the electrical panel is rated for 125 amps, has enough space for the required circuit breakers, and is installed by a licensed electrician following local building codes and regulations. Additionally, the breaker box should be properly grounded and connected to the main electrical service of the property.
What size wire do I need for a 30 amp breaker?
For a 30 amp breaker, you will need a wire that is at least 10 gauge in size.
