Form 9766 Rev.- ECO 1-7322 9/17
The following tables are provided to assist the installer in the sizing of electric cables and/or plug sizes
needed for each FSP heater model. Cords and plugs will have to be obtained through a local supplier
or purchased separately from Fostoria Industries. All wiring must be copper, rated 90°C and meet local
codes and National Electric Code (NEC) requirements.
The electric cables in the following table can be purchased from Fostoria Industries for use on the FSP
series heaters. They all have copper conductors, are 25 feet long and have 90°C rated jackets. Cable
connectors are included.
FSP SERIES SUPPLY WIRE SPECIFICATIONS
TABLE B
ELECTRIC CABLES
SIZE / TYPE
PART NO.
SIZE / TYPE
PART NO.
16/3 SO
08804300
8/3 SO
08805200
14/3 SO
08804600
8/4 SO
08805100
14/4 SO
08804900
6/4 SO
03164001
12/3 SO
08804500
4/3 SO
08805300
12/4 SO
03164201
2/3 SO
08804700
10/3 SO
08804400
TABLE A
Heater
Model
Kw
Volts
Amps
Type SO Cable
Size*
Plug Size 3-Ph Plug Size 1-Ph
3-PH
1-PH
3-PH
1-PH
FSP-4320-3
4.3
208
11.94
20.67
12/4
10/3
20A/250V/4 WIRE
30A/250V/3 WIRE
FSP-4324-3
4.3
240
10.36
17.91
14/3
12/3
20A/250V/4 WIRE
30A/250V/3 WIRE
FSP-4327-1
4.3
277
N/A
15.52
N/A
12/3
N/A
20A/277V/3 WIRE
FSP-4348-3
4.3
480
5.18
8.96
14/4
14/3
20A/480V/4 WIRE
20A/480V/3 WIRE
FSP-4357-3
4.3
600
4.14
7.16
14/4
14/3
20A/600V/4 WIRE
20A/600V/3 WIRE
FSP-9520-3
9.5
208
26.39
45.67
10/4
6/3
50A/250V/4 WIRE
50A/250V/3 WIRE
FSP-9524-3
9.5
240
22.9
39.7
10/4
8/3
50A/250V/4 WIRE
50A/250V/3 WIRE
FSP-9527-1
9.5
277
N/A
34.3
N/A
8/3
N/A
50A/277V/3 WIRE
FSP-9548-3
9.5
480
11.44
19.8
12/4
10/3
20A/480V/4 WIRE
30A/480V/3 WIRE
FSP-9557-3
9.5
600
9.54
16.52
12/4
12/3
20A/600V/4 WIRE
30A/600V/3 WIRE
*50FT. Maximum Cable Length
5
