Heat Pump Water Heater Circuit

Rheem Performance Platinum ProTerra Hybrid (30A): Breaker & Wire Size

The circuit the Rheem Performance Platinum ProTerra Hybrid (30A) needs, transcribed from the manufacturer's own spec sheet, with the conductor and ground derived for the stated breaker.

Circuit Spec

The breaker is the manufacturer-stated value; the conductor and ground derive from that breaker. Under NEC 422.11(E) the overcurrent device must not exceed the rating marked on the appliance, so the nameplate on your unit always governs.

Models & Capacities

Representative models in this line: XE40T10H45U1, XE50T10H45U1, XE65T10H45U1, XE80T10H45U1. Capacities: 40, 50, 65, 80 gallons. The circuit spec above applies across the line as published by Rheem; confirm against the rating plate on the specific unit.

A Dedicated Circuit, Wired Like a Standard Tank

Every 240V hybrid is a dedicated-circuit appliance; Rheem states a dedicated 30A / 240V circuit for this line, on #10 copper with a #10 ground. It uses the same 4,500W backup element as a standard 4,500W / 240V electric resistance tank, which draws 18.75A (23.44A at the 125% continuous sizing, NEC 422.13) on the same 30A / #10 circuit (25A is the NEC code minimum), so it wires identically to the tank it typically replaces.

Source

Circuit data transcribed from the manufacturer: Rheem Performance Platinum ProTerra Hybrid (30A) specification, accessed 2026-07-11.

The mainstream Rheem hybrid uses the same 4,500W backup element as a standard electric tank, so it wires identically: a 30A / 240V dedicated circuit on 10 AWG copper. The 'H45' in the model number is the 4,500W element. In normal heat-pump mode it draws only a few amps; the circuit is sized for the backup element.

Frequently Asked Questions

Compute Your Unit's Exact Amps

Read the watts off the rating plate and enter them below to get the exact draw at 120V or 240V. The rating plate governs over any typical value.

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