3 Installation
3.3 Mounting
62 DC1 Variable Frequency Drive 04/16 MN04020003Z-EN www.eaton.com
3.3.3 Fixing
All DC1 variable frequency drive frame sizes can be mounted with screws. 
Moreover, frame sizes FS1 to FS3 with an IP20 degree of protection can be 
mounted on a mounting rail as well.
3.3.3.1 Fixing with screws
 First fit the screws at the specified positions, mount the variable 
frequency drive and then fully tighten all screws.
Table 4: Installation dimensions, screws, tightening torques
→
Dimension and weight specifications for the DC1 variable 
frequency drive can be found in the
 Section 6.3, “Dimensions“, page 140.
→
Use screws with a washer and split washer with the 
permissible tightening torque in order to protect the enclosure 
and safely and reliably mount the device.
Figure 27: Mounting dimensions
b1
a1
1
2
3
b1
a1
Frame
size
Degree of 
protection
a1 b1 Screw Tightening torque
FS
IP NEMA mm in mm in Quantity Size N/m lb-in
FS1 IP20 NEMA 0 50 1.97 170 6.69 4 M4 1 8.85
FS1
IP66_x NEMA 4X 184.5 5.85 189 7.44 4 M4 1.2 - 1.5 10.62 - 13.27
FS2
IP20 NEMA 0 75 2.95 215 8.46 4 M4 1 8.85
FS2
IP66_x NEMA 4X 176 6.93 200 7.87 4 M4 1.2 - 1.5 10.62 - 13.27
FS3
IP20 NEMA 0 100 3.94 255 10.04 4 M4 1 8.85
FS3
IP66_x NEMA 4X 198 7.78 252 9.9 4 M4 1.2 - 1.5 10.62 - 13.27
FS4
IP20 NEMA 0 125 4.92 400 15.75 4 M6 4 35.4
1 in = 1’’ = 25.4 mm; 1 mm = 0.0394 in