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DURAWATT
®
ELECTRIC WATER HEATER
PV500-6 09/07 12
NOTE: Elements are usually wired to contactors in groups, in order to maintain an amperage draw of close to, but not more
than, 50 amps per contactor.
*Applications for 600V use a re-rated 480V element. Therefore, the 40W/in.
2
is rated for 14 kW instead of 9 kW.
KW-VOLTAGE
3 Ø AMPS PER ELEMENT 1 Ø AMPS PER ELEMENT
AMPS PER LEG AMPS TOTAL AMPS PER LEG AMPS TOTAL
*14 kW-600V 13 1/2 13 1/2 — —
*7 kW-600V 7 7 — —
18 kW-480V 22 22 — —
9 kW-480V 11 11 — —
4.5 kW-480V 5 1/2 5 1/2 — —
18 kW-240V 44 44 25 75
9 kW-240V 22 22 13 38
4.5 kW-240V 11 11 6 18
18 kW-208V 50 50 29 87
9 kW-208V 25 25 15 44
4.5 kW-208V 12 1/2 12 1/2 7 22
TABLE 2
TYPICAL CURRENT MEASUREMENT
FIGURE 11 FIGURE 12