Heating Element Properties

TECHNICAL SERVICE DEPARTMENT
Technical Service Bulletin
1-800-432-8373
Heating Element Properties - Voltage, Amps and Ohms; Recovery; Circuit Breaker
Please check all local electrical codes before installing or changing wiring on electric water heaters.
Technical Competence, Product Confidence
Page 2 of 3
1305.DOC
Circuit Breaker and Wire Size
Recommended Over
Current Protection
(Fuse or Circuit Breaker)
Amperage Rating
Copper Wire Size –
AWG Based on N.E.C.
Table 310-16 (75
0
C.)
Total
Water
Heater
Wattage
P
h
a
s
e
208V 240V 277V 480V 208V 240V 277V 480V
3000 1 20 20 15 15 12 12 14 14
3 20 20 --- 15 12 12 -- 14
3800 1 25 20 --- --- 10 10 --- ---
--- --- --- --- --- --- --- --- ---
4000 1 25 25 20 15 10 10 12 14
3 25 25 --- 15 10 10 --- 14
4500 1 30 25 25 15 10 10 10 14
3 30 25 --- 15 10 10 --- 14
5000 1 30 30 25 15 10 10 10 14
3 30 30 --- 15 10 10 --- 14
5500 1 35 30 25 15 8 10 10 14
3 35 30 --- 15 8 10 --- 14
6000 1 40 35 30 20 8 8 10 12
3 3 530 --- 15 8 10 --- 14
8000 1 50 45 40 25 8 8 8 10
3 45 40 --- 20 8 8 --- 12
9000 1 --- 50 45 25 --- 8 8 10
3 50 45 --- 25 8 8 --- 10
10,000 1 --- --- 50 30 --- --- 8 10
3 --- 50 --- 25 --- 8 --- 10
11,000 1 --- --- 50 30 --- --- 8 10
3 --- 50 --- 25 --- 8 --- 10
12,000 1 --- --- --- 35 --- --- --- 8
3 --- --- --- 30 --- --- --- 10