16
120
V
WATT
LOAD
BRANCH CIRCUIT SIZING GUIDE
Based on N.E.C. NFPA NO. 70 - 1999
208
V
240
V
Recommend
Over Current
Protection Rating
120
V
208
V
240
V
Copper Wire Size
AWG Based on N.E.C.
Table 310 - 16 (60°C)
* Wattages less than 1500 may be wired 14 gage with 15 amp
protection
BLACK
BLACK
L1
L2
FUSED DISCONNECT
OR CIRCUIT BREAKER
RED
THERMOSTAT
&
HIGH LIMIT
CONTROL
WIRING NO. 7
SINGLE ELEMENT HEATER
6603461G
RED
HEATING
ELEMENT
GROUND
SCREW
ELECTRICAL
SERVICE
GROUND
WHITE
BLACK
BLACK
HOT
WHITE
THERMOSTAT
&
HIGH LIMIT
CONTROL
NEUTRAL
FUSED DISCONNECT
OR CIRCUIT BREAKER
WIRING NO. 1
SINGLE ELEMENT HEATER
6603461H
HEATING
ELEMENT
GROUND
SCREW
ELECTRICAL
SERVICE
GROUND
THERMOSTAT WIRING DIAGRAM
1500* 15 15 15 12 14 14
2000 20 15 15 10 14 14
2500 30 15 15 10 14 14
3000 30 20 15 8 12 12
3500
-
20
20
-
10
12
4000
-
25
20
-
10
10
4500
-
30
25
-
10
10
5000
-
30
30
-
10
10
5500
-
35
30
-
8
10
6000
-
35
30
-
8
8
9000
-
50
45
-
6
6
12000
-
70
60
-
3
4
Important:
Read and understand the
Electrical Requirements
section on page 4.
