STEP 2 COZY HEAT
®
SR SPECIFICATIONS
FIGURE 1
PERFORMANCE RATINGS
POWER OUTPUT CURVE
BREAKER SIZING AND MAX CIRCUIT LENGTH
0
50
70
90
110
130
150
2
0
4
6
8
10
12
14
15A
20A
30A
40A
5GM1 If started at 40ºF
0ºF
-20ºF
300
200
180
—
270
230
—
330
330
—
—
—
9GM1 If started at 40ºF
0ºF
-20ºF
150
95
85
200
125
100
210
190
170
—
210
210
12GM1 If started at 40ºF
0ºF
-20ºF
115
70
60
150
95
85
180
145
120
—
180
165
120 Volt Breaker Sizing vs Max Circuit Length (ft)
15A
20A
30A 40A*
5GM2 If started at 40ºF
0ºF
-20ºF
660
410
360
—
560
480
—
660
660
—
—
—
9GM2 If started at 40ºF
0ºF
-20ºF
295
195
170
390
250
225
420
375
340
—
420
420
12GM2 If started at 40ºF
0ºF
-20ºF
230
150
130
305
200
175
360
300
260
—
360
360
240 Volt Breaker Sizing vs Max Circuit Length (ft)
Temperature, ºF
P
o
w
er O
utp
u
t,
W
att
s/Ft
5GM
9GM
12GM
15A
20A
30A 40A*
5GM2 If started at 40ºF
0ºF
-20ºF
505
475
420
—
650
560
—
765
765
—
—
—
9GM2 If started at 40ºF
0ºF
-20ºF
320
210
185
425
270
245
455
405
370
—
460
460
12GM2 If started at 40ºF
0ºF
-20ºF
240
155
135
315
210
180
375
310
270
—
375
375
208 Volt Breaker Sizing vs Max Circuit Length (ft)
15A
20A
30A 40A*
5GM2 If started at 40ºF
0ºF
-20ºF
570
355
310
—
485
415
—
570
570
—
—
—
9GM2 If started at 40ºF
0ºF
-20ºF
270
180
155
355
230
205
385
345
310
—
385
385
12GM2 If started at 40ºF
0ºF
-20ºF
220
140
125
290
190
165
340
285
245
—
340
340
277 Volt Breaker Sizing vs Max Circuit Length (ft)
* Appropriate sized butt splices may need to be sourced separately
Watts per linear foot at 32° in
iced water
5
9
12
Cable type
Self Regulating (SR)
Copper bus wire
22 AWG Min
Maximum maintenance
temperature
185ºF (85ºC)
Maximum intermittent
exposure temperature
212ºF (100ºC)
T rating: T5
Voltage AC
120, 208, 240, 277
Maximum length
Refer to product label
Approximate thickness/width
0.25” x 0.50”
Bending radius
1”
Minimum spacing
2”
Standard spacing
4” to 9”
2
