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Bradford White LE110U3 Installation & Operating Instruction Manual page 14

Light duty commercial electric water heater

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The following tables show the recommended fuse size for the maximum
wattage supplied to the water heater. The maximum wattage and rate
voltage are shown on the water heater data plate.
Watt
Recommended over
Load
current protection rating
120V
1500
15
2000
20
2500
30
3000
30
3500
4000
4500
5000
5500
6000
9000
10000
11000
Increasing the wattage and/or voltage from the factory original
equipment can require changes to the water heater and/or the
electric service. Unauthorized modification of the water heater may
create a hazard to life and property and will nullify the warranty.
Contact your dealer or utility company before making any changes.
SINGLE PHASE FULL LOAD CURRENT DRAW
Element
120V
Wattage
1500/1500
12.5
2000/2000
16.7
2500/2500
20.8
3000/3000
25.0
3500/3500
N/A
4000/4000
N/A
4500/4500
N/A
5000/5000
N/A
5500/5500
N/A
6000/6000
N/A
Electrical Connections continued-
BRANCH CIRCUIT SIZING GUIDE
Copper wire size – AWG
Based on N.E.C. Table
310-16
208V
240V
15
15
15
15
15
15
20
15
20
20
25
20
30
25
30
30
35
30
35
30
50
45
60
55
30
FOR YOUR SAFETY
(NON-SIMULTANEOUS OPERATION)
208V
240V
7.2
6.3
9.6
8.3
12.0
10.4
14.4
12.5
16.8
14.6
19.2
16.7
21.6
18.8
24.0
20.8
N/A
22.9
N/A
N/A
120V
208V
12
14
10
14
10
14
8
12
10
10
10
10
8
8
8
4
277V
5.4
7.2
9.0
10.8
12.6
14.4
16.2
18.8
19.9
21.7
14
Approximate
Recovery
Gal./Hr. @100°F
Rise
240V
14
6.1
14
8.2
14
10.2
12
12.3
12
14.3
10
16.4
10
18.4
10
20.5
10
22.5
8
24.8
6
36.9
4
41.0
4
45.1
380V
415V
3.9
3.6
5.3
4.8
6.6
6.0
7.9
7.2
9.2
8.4
10.5
9.6
11.8
10.8
13.2
12.0
14.5
13.3
15.8
14.5
480V
3.1
4.2
5.2
6.3
7.3
8.3
9.4
10.4
11.5
12.5

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Le120u3