A.O. Smith DRE Installation And Operation Manual page 20

DRE POWER CIRCUIT DIAGRAMS
HEATER CIRCUITS—DRE MODELS
The water heater's electrical components are pictured and identified on page
2.
The following describes the heater circuits and includes wiring diagrams. All
heater circuits are designed for 60/50 hertz alternating current.
The DRE circuit wiring is 12 AWG, AWM, or TEW type, rated 600 volts, 105°C.
FUSING
Fusing consists of two 30 amp class G fuses for each element. See wiring
diagrams. Do not substitute fuses of a different rating.
THREE ELEMENTS - SINGLE AND THREE PHASE SIX ELEMENTS - SINGLE AND THREE PHASE
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