Rockwell Automation Publication 5069-IN013D-EN-P - April 2018 7
CompactLogix 5380 Controllers
Dimensions
The controller dimensions are as follows.
Ground Considerations
You must ground DIN rails according to the Industrial Automation 
Wiring and Grounding Guidelines, publication 
1770-4.1 
You can use the EN50022 - 35 x 7.5 mm (1.38 x 0.30 in.) DIN rail.
System Power Considerations
The CompactLogix 5380 controller provides power to a 
CompactLogix 5380 system via RTBs that are connected to external 
power supplies and installed on the controller. 
The RTBs provide the following power to the system.
ATTENTION: This product is grounded through the DIN rail to 
chassis ground. Use zinc-plated chromate-passivated steel DIN 
rail to assure proper grounding. The use of other DIN rail 
materials (for example, aluminum or plastic) that can corrode, 
oxidize, or are poor conductors, can result in improper or 
intermittent grounding. Secure DIN rail to mounting surface 
approximately every 200 mm (7.8 in.) and use end-anchors 
appropriately. Be sure to ground the DIN rail properly. Refer to 
Industrial Automation Wiring and Grounding Guidelines, 
Rockwell Automation publication 
1770-4.1 for more 
information.
SA Power MOD Power
98.10 mm
(3.86 in.)
137.84 mm
(5.43 in.)
123.00 mm
(4.84 in.)
143.97 mm
(5.67 in.)
136.81 mm
(5.39 in.)
130.31 mm
(5.13 in.)
101.66 mm
(4.00 in.)
Power Type Description
MOD Power
System-side power that is used to operate the CompactLogix 5380 
system. MOD power is provided through the MOD power RTB and passed 
across the MOD power bus. 
• The total continuous current draw across the MOD power bus must not 
be more than 10 A, max, at 18...32V DC.
• Confirm that the external MOD power supply is adequately sized for 
the total MOD power bus current draw in the system, plus the MOD 
power inrush current requirements.
SA Power
Field-side power that is used to power field-side devices. SA power is 
provided through the SA power RTB and passed across the SA power bus.
• If you are using DC voltage for SA power, the total continuous current 
draw across the SA power bus must not be more than 10 A, max 
at 18…32V DC.
• If you are using AC voltage for SA power, the total continuous current 
draw across the SA power bus must not be more than 10 A, max 
at 18…240V AC.
• You can use a 5069-FPD field potential distributor to establish 
additional SA power buses in a CompactLogix 5380 system.
• Confirm that the external SA power supply is sized adequately for the 
total SA power current draw in the system, including the combined 
inrush current requirements for all connected modules. 
IMPORTANT CompactLogix 5380 controllers do not have an embedded 
power supply that powers the system.
IMPORTANT You can connect power from one external power supply to the 
MOD power and SA power connects. However, we strongly 
recommend that you use separate external power supplies 
for MOD power and SA power respectively. 
The practice of using separate external power supplies can help to 
prevent unintended consequences that can result if you use one 
supply.
If you use separate external power supplies, the loss of power from 
one external power supply does not affect the availability of 
power from the other supply. For example, if separate external 
power supplies are used and SA power is lost, MOD power remains 
available for the Compact 5000 I/O modules.