5
WIRING DIAGRAMS
C-2 CIRCUIT
FOR SINGLE
ELEMENT HEATERS
EQUIPPED WITH HIGH
LIMIT CONTROL
Size
Temperature Rating of Conductor
See Table 310-13 in Code
AMG
60° C
75° C
MCM
(140° F)
(167° F)
TYPES:
TYPES:
RUW
RH, RHW, RUH,
(14-2),
(14-2), THW
T, TW,
THWN, XHHW,
UF
USE
18
- - -
- - -
16
- - -
- - -
14
15
15
12
20
20
10
30
30
8
40
45
6
55
65
4
70
85
3
80
100
Size
Temperature Rating of Conductor
See Table 310-13 in Code
AMG
60° C
75° C
MCM
(140° F)
(167° F)
TYPES:
TYPES:
RUW
RH, RHW, RUH,
(12-2),
(12-2), THW
T, TW,
THWN, XHHW,
UF
USE
12
15
15
10
25
25
8
30
40
6
40
50
4
55
65
3
65
75
2
75
90
1
85
100
FACTORY WIRED
----------
FIELD WIRING
†
WHITE FOR 120V
For ambient temperatures over 30° C (86° F), see Correction
Factors, Note 13 in Code.
Portion of Table 310-18 follows:
Allowable Ampacities of Insulated Aluminum and Copper -Clad
Aluminum Conductors.
Not more than three conductors in Raceway or Cable or Direct
Burial (Based on Ambient Temperature of 30° C, 86° F. These
ampacities relate only to conductors described in Table 310-13
in Code.
For ambient temperatures over 30° C (86° F), see Correction
Factors, Note 13 in Code.
A-8 CIRCUIT FOR DUAL ELEMENT HEATER
