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PLF SERIES
WALL EXHAUST FAN
Chart # 2
Table A - Minimum Wire Sizes for Three-Phase Motors
Motor
HP
200V
1/8
14 (18)*
1/6
14 (18)*
1/4
14 (18)*
1/3
14 (18)*
1/2
14 (16)*
3/4
14 (16)*
1
14
1-1/2
12
2
12
3
10
Table B - Minimum Wire Sizes for Single-Phase Motors
Motor
HP
200V
1/8
14 (18)*
1/6
14 (16)*
1/4
14
1/3
14
1/2
12
3/4
10
1
10
1-1/2
8
2
8
3
6
note:
• NEC Article 310-5 - * Minimum conductor size for general wiring at 115-440VAC is number 14AWG.
• Above wire sizes based on approximate 5% voltage drop during starting; copper conductors; and 75C type THHW, THW, THWN, RH, RHW
insulation etc. For aluminum wire, increase two wire size steps minimum. See NEC Article 310 for ampacities af aluminum conductors.
• Type S, SO, SJ, SJO, etc flexible cable wire sizes. See NEC Article 400 for ampacity.
EC (Electronically Controlled) MOTOR SPEED CONTROL
If your unit
contains the
ECsmart
Motor
please follow
these wiring
diagrams:
m0017_Plf serIes_06_13_2022
25 to 50 Feet
230V
460V
14 (18)*
14 (18)*
14 (18)*
14 (18)*
14 (18)*
14 (18)*
14 (18)*
14 (18)*
14 (16)*
14 (18)*
14 (18)*
14 (16)*
14 (18)*
14 (18)*
14 (16)*
14 (18)*
14 (16)*
14 (18)*
14
14 (18)*
12
14 (18)*
12
14 (18)*
25 to 50 Feet
230V
460V
14 (18)*
14
14 (18)*
14 (18)*
12
14 (18)*
14 (18)*
10
14 (16)*
14 (18)*
10
14 (16)*
14 (18)*
8
14 (16)*
6
14 (16)*
6
14
6
14
4
12
3
100 Feet
200V
230V
460V
14 (18)*
14 (18)*
14 (18)*
14 (18)*
14 (18)*
14 (18)*
14 (16)*
14 (18)*
12
14 (16)*
14 (18)*
12
14
14 (18)*
12
12
14 (18)*
10
10
14 (16)*
8
10
14 (16)*
6
8
14
100 Feet
200V
230V
460V
12
14 (18)*
10
14 (16)*
8
14
8
14
14
6
12
12
4
10
12
4
10
12
3
8
10
2
8
8
1/0
6
150 to 200 Feet
200V
230V
460V
14 (16)*
14 (16)*
14 (18)*
14
14 (16)*
14 (18)*
14
14
14 (18)*
12
14
14 (18)*
10
12
14 (18)*
10
10
14 (16)*
8
10
14 (16)*
6
8
6
6
4
6
150 to 200 Feet
200V
230V
460V
10
8
6
6
6
4
6
4
4
3
2
1
2
1
1
1/0
1/0
2/0
2/0
4/0
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