© 2018 MacroAir Technologies Toll Free: 866 668 3247 Fax: 909 890 2313 www.macroairfans.com 5
Rev. Date 040218
Fusing Chart
BRANCH CIRCUIT PROTECTION IS REQUIRED TO PROTECT THE ELECTRICAL COMPONENTS
AND COMPLY WITH UL 507.
Use the table below to select the correct
fast acting fuse
size for your application. The optional
fuse disconnect switch provided by MacroAir uses
class gG fast acting fuses
. Fuses must be
purchased separately.
MODEL 550
Max Amp Draw / Fuse Size
Voltage and Phase
8ft
10ft
12ft
14ft
16ft
18ft
110 VAC 1-Phase
9A / 12
13.9A / 20
13.9A / 20
13.9A / 20
15.2A / 20
15.2A / 20
120 VAC 1-Phase
8.3A / 12
12.7A / 16
12.7A / 16
12.7A / 16
14A / 20
14A / 20
208-240 VAC 1-Phase
4.8A / 6
7.3A / 10
7.3A / 10
7.3A / 10
8.1A / 12
8.1A / 12
208-240 VAC 3-Phase
3.4A / 6
5.3A /8
5.3A / 8
5.3A / 8
6.6A / 10
5.8A / 8
380 VAC 3-Phase
1.9A / 4
2.9A / 4
2.9A / 4
2.9A / 4
3.6A / 6
3.2A / 4
480 VAC 3-Phase
1.5A / 4
2.3A / 4
2.3A / 4
2.3A / 4
2.9A / 4
2.5A / 4
600 VAC 3-Phase
1.2A / 4
1.8A / 4
1.8A / 4
1.8A / 4
2.3A / 4
2A / 4
MODEL 780
Voltage and Phase
20ft
24ft
208-240 VAC 1-Phase
12.5A / 16
15.1A / 20
208-240 VAC 3-Phase
6.8A / 10
8.2A / 12
380 VAC 3-Phase
3.7A / 6
4.5A / 6
480 VAC 3-Phase
2.9A / 4
3.5A / 6
600 VAC 3-Phase
2.3A / 4
2.8A / 4
Reference page 57 for installation.
Part
Numbers:
4A
6A
8A
10A
12A
16A
20A
MERSEN
FUSES
FR10GG50V4
FR10GG50V6
FR10GG50V8
FR10GG50V10
FR10GG50V12
FR10GG50V16
FR10GG50V20
EATON
FUSES
C10G4
C10G6
C10G8
C10G10
C10G12
C10G16
C10G20
DF
FUSES
420004
420006
420008
4200010
4200012
4200016
4200020
Mersen fuses:
http://ep-us.mersen.com/products/catalog/line/ferrule-fuse-links-10x38-gg-400-to-690vac/
Eaton Fuses:
http://www.cooperindustries.com/content/public/en/bussmann/electrical/products/iec_british0/class_gg_gl_
ferrulefuses/class_gg_gl_ferrulefuses10x38mm.resources.html
DF Fuses:
http://www.df-sa.es/products/cylindrical/gg-fuse-links