RESIDENTIAL GAS AND ELECTRIC WATER HEATER
SERVICE HANDBOOK
Residential Electric – continued
Three Phase – Unbalanced Circuit
| 3 Supply Wires | 3 Supply Wires |
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| 6 Element Wires | 4 Element Wires |
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| SIMULTANEOUS DUAL ELEMENTS |
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| (both elements ‘on’ when entire tank is cold) |
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| Element | Full Load Current in Amperes |
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| Wattage | Connected to Three Phase Power |
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| Upper/Lower | (Terminal L2/ Terminals L1 & L3 |
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| 208V | 240V | 480V |
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| 3000/3000 | 25.0/14.4 | 21.7/12.5 |
| 10.8/6.3 |
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| 4000/4000 | 33.3/19.2 | 28.9/16.7 |
| 14.4/8.3 |
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| 4500/4500 | 37.5/21.6 | 32.5/18.8 |
| 16.2/9.4 |
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| 5000/5000 | N/A | 36.1/20.8 |
| 18.0/10.4 |
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| 6000/6000 | N/A | N/A |
| 21.7/12.5 |
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Note: Residential heaters may or may not offer the ability to wire elements for simultaneous operation. If they are wired for
A.O. Smith Water Products Company | 30 | Training Department | |
©2002 | Ashland City, Tennessee | ||
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