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Table 2: HG Electric Heat Electrical Data - H
Z
/HE
Table 1: HG Electric Heat Ratings and Compatibility
HG Series
Supply
Heater Amps
Min Circ Ampacity
Max Fuse
Supply Wire
Electric Heat Model
Circuit
240V
208V
240V
208V
240V
208V
Min AWG
Max Ft
HGM5
Single
20.0
17.3
25.0
21.6
25
25
10
70
HGM8
Single
31.7
27.5
39.6
34.4
40
35
8
70
HGM10
Single
40.0
34.7
50.0
43.4
50
45
6
90
Single
47.5
41.2
59.4
51.5
60
60
6
70
HGM12
Dual - L1/L3
31.7
27.5
39.6
34.4
40
35
8
70
Dual - L2/L4
15.8
13.7
19.8
17.1
20
20
12
50
HGL10
Single
40.0
34.7
50.0
43.4
50
45
6
80
Single
60.0
52.0
75.0
65.0
80
70
6
50
HGL15
Dual - L1/L3
40.0
34.7
50.0
43.4
50
45
6
80
Dual - L2/L4
20.0
17.3
25.0
21.6
25
25
10
70
Single
80.0
69.3
100.0
86.6
100
90
2
100
HGL20
Dual - L1/L3
40.0
34.7
50.0
43.4
50
45
6
80
Dual - L2/L4
40.0
34.7
50.0
43.4
50
45
6
80
All heaters rated single phase 208-240V 60 Hz
Wire length based on one way measurement with 2% voltage drop
Wire size based on 60°C copper conductor
All models 12kW or larger feature internal circuit breakers
All fuses UL Class K general purpose
HGM4
Single
15.8
14.0
19.8
17.1
20
20
12
130
Heater
Model
HT Series
HP Series
HE Series
WDG Series kW Rating Btuh Rating Minimum
CFM
Required
24 36 48 60 70 18 24 30 36 42 48 60 24 30 36 42 48 60 24 36 48 60 240V 208V 240V 208V
HGM4A X
3.8
2.9 13000 9900
500
HGM5A X
4.8
3.6 16300 12300
500
HGM8A X
7.6
5.7 25900 19400
650
HGM10A X
9.6
7.2 32700 24600
650
HGM12A
11.4
8.6 38900 29200
750
HGM4B
3.8
2.9 13000 9900
500
HGM5B
4.8
3.6 16300 12300
500
HGM8B
7.6
5.7 25900 19400
650
HGM10B
9.6
7.2 32700 24600
650
HGM12B
11.4
8.6 38900 29200
750
HGM4C
3.8
2.9 13000 9900
500
HGM5C
4.8
3.6 16300 12300
500
HGM8C
7.6
5.7 25900 19400
650
HGM10C
9.6
7.2 32700 24600
650
HGL10A
X
X
X
X
9.6
7.2 32700 24600
1300
HGL15A
X
X
X
X
14.4
10.8 49100 36900
1350
HGL20A
X
X
X
19.2
14.4 65500 49200
1350
HGL10C
X
X
X
9.6
7.2 32700 24600
1300
HGL15C
X
X
X
14.4
10.8 49100 36900
1350
HGL20C
X
X
19.2
14.4 65500 49200
1350
Shaded areas denote compatibility
Internal mounted heaters are rated for zero clearance (unit and duct). External mounted heaters require 1” clearance for first three feet of duct.
Heater
Model
HZ Series
HE Series
WDG Series kW Rating
Btuh Rating
Minimum
CFM
Required
24 36 48 60 70 24 30 36 42 48 60 24 36 48 60 240V 208V 240V
208V
HGM4
3.8
2.9 13000 9900
500
HGM5
4.8
3.6 16300 12300
500
HGM8
7.6
5.7 25900 19400
650
HGM10
9.6
7.2 32700 24600
650
HGM12
11.4 8.6 38900 29200
750
HGM4
3.8
2.9 13000 9900
500
HGM5
4.8
3.6 16300 12300
500
HGM8
7.6
5.7 25900 19400
650
HGM10
9.6
7.2 32700 24600
650
HGM12
11.4 8.6 38900 29200
750
HGM4
3.8
2.9 13000 9900
500
HGM5
4.8
3.6 16300 12300
500
HGM8
7.6
5.7 25900 19400
650
HGM10
9.6
7.2 32700 24600
650
HGL10
9.6
7.2 32700 24600
1300
HGL15
14.4 10.8 49100 36900
1350
HGL20
19.2 14.4 65500 49200
1350
HGL10
9.6
7.2 32700 24600
1300
HGL15
14.4 10.8 49100 36900
1350
HGL20
19.2 14.4 65500 49200
1350
