1. Determine the wattage of the hot water tank. This information can usually be found on the tank's specifications label.
2. Calculate the amperage by dividing the wattage by the voltage of the circuit. For example, if the hot water tank is rated for 4,500 watts and the circuit is 240 volts, the amperage is calculated as follows:
4,500 watts / 240 volts = 18.75 amps
3. Select an amp circuit breaker that is rated for the calculated amperage or slightly higher. In this example, a 20-amp circuit breaker would be suitable for the 4,500-watt hot water tank.
It is important to use a circuit breaker that is appropriately sized for the amperage of the hot water tank to prevent overheating and potential damage to the tank or electrical system. If you are unsure about the appropriate amp circuit breaker size, it is best to consult with a qualified electrician.
Note: Local building codes and regulations may have specific requirements for selecting amp circuit breakers for hot water tanks. Always comply with local regulations when choosing the amp circuit breaker.
