What is the maximum load that electric pool water heaters must be subdivided into?

Electric pool water heaters must be subdivided into a maximum load of 48 amps. This limit is set to ensure safety and proper functioning when wiring and installing equipment specifically for pools.

The reason for subdividing the electric load is to manage the power distribution effectively and to adhere to the specific requirements outlined in the National Electrical Code (NEC). By defining a maximum load of 48 amps, the NEC aims to prevent overheating and possible electrical hazards associated with higher loads. It's critical to size the electrical components, including conductors, circuit breakers, and panels, appropriately based on this maximum load to ensure safe operation of the heater and the broader electrical system in the pool area. This helps prevent incidents that could arise from overloading a circuit, thus ensuring compliance with safety standards and promoting a safe swimming environment.