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3) ELECTRICAL HOOK-UP
For use on an individual branch circuit only.
The heater shall be installed using insulated, UL listed, 2 wire cable (2 wire plus ground) of the appropriate size
suitable for up to 75°C and protected by the correctly rated circuit breaker. Refer to the chart below for
recommended copper wiring for conductors with a temperature rating of 75°C:
ELECTRICAL SPECIFICATIONS
*Special suffixed models (i.e. CA, etc.), will have identical temperature rises as their base model
BEFORE BEGINNING ANY WORK ON THIS INSTALLATION, CONFIRM THE ELECTRICAL
BREAKER IS “OFF” AND THAT ALL MOUNTING AND PLUMBING WORK HAS BEEN
COMPLETED PER THE STATED INSTRUCTIONS.
Base Model*
Voltage
(VAC)
Max power
(kW)
Max current
(A)
Minimum wire size
(AWG) @75°C
SPEX1812
120
1.8
15
14
SPEX2412
120
2.4
20
14
SPEX3012
120
3
25
12
SPEX3512
120
3.5
29
10
SPEX35
240
3.5
15
14
SPEX48
240
4.8
20
14
SPEX55
240
5.5
23
12
SPEX65
240
6.5
27
10
SPEX75
240
7.5
32
10
SPEX95
240
9.5
40
8
SPEX3208
208
3
15
14
SPEX4208
208
4.1
20
14
SPEX8208
208
8.3
40
8
SPEX3277
277
3
11
14
SPEX4277
277
4.1
14.8
14
SPEX60
277
6
22
12
SPEX80
277
8
29
10
SPEX90
277
9
33
10
SPEX100
277
10
36
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