Calculating Heat Dissipation - Rockwell Automation Allen-Bradley MicroLogix 1400 User Manual

Appendix H System Loading and Heat Dissipation

Calculating Heat Dissipation

Table 52 - Heat Dissipation
Catalog Number
1766-L32AWA
1766-L32BWA
1766-L32BXB
1762-IA8
1762-IF4
1762-IF2OF2
1762-IQ8
1762-IQ16
1762-IQ32T
1762-IR4
1762-IT4
1762-OA8
1762-OB8
1762-OB16
1762-OB32T
1762-OF4
1762-OV32T
1762-OW8
1762-OW16
1762-OX6I
1762-IQ8OW6
Add Sub-Totals to determine Heat Dissipation
(1) Only applicable for Series B and Series C I/O modules.
296
Use the following table when you need to determine the heat dissipation of
your system for installation in an enclosure. For System Loading, take the
value from the appropriate system loading worksheets on pages
.
Heat Dissipation
Equation or Constant
15.2 W + (0.4 x System Loading)
15.7 W + (0.4 x System Loading)
17.0 W + (0.3 x System Loading)
2.0 W x number of modules
2.0 W x number of modules
2.6 W x number of modules
3.7 W x number of modules
(1)
5.4 W x number of modules
6.8 W x number of modules (@ 30.0V DC)
5.4 W x number of modules (@ 26.4V DC)
1.5 W x number of modules
1.5 W x number of modules
2.9 W x number of modules
1.6 W x number of modules
2.9 W x number of modules
3.4 W x number of modules
3.8 W x number of modules
2.7 W x number of modules
2.9 W x number of modules
(1)
6.1 W x number of modules
2.8 W x number of modules
4.4 W x number of modules
Rockwell Automation Publication 1766-UM001O-EN-P - September 2021
Calculation
15.2 W + (0.4 x ______ W)
15.7 W + (0.4 x ______ W)
17.0 W + (0.3 x ______ W)
2.0 W x _________
2.0 W x _________
2.6 W x _________
3.7 W x _________
(1)
5.4 W x _________
6.8 W x _________ (@ 30.0V DC)
5.4 W x _________ (@ 26.4V DC)
1.5 W x _________
1.5 W x _________
2.9 W x _________
1.6 W x _________
2.9 W x _________
3.4 W x _________
3.8 W x _________
2.7 W x _________
2.9 W x _________
(1)
6.1 W x _________
2.8 W x _________
4.4 W x _________
294 or 295.
Sub-Total
W
W
W
W
W
W
W
W
W
W
W
W
W
W
W
W
W
W
W
W
W
W
W