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V2
AC500 Hardware
1-18 System
data
AC500 / Issued: 05.2007
By wall mounting, the Terminal Unit is earthed through the screws. It is necessary that
•
the screws have a conductive surface (e.g. steel zinc-plated or brass nickel-plated)
•
the
mounting plate is earthed
•
the screws have a good electrical contact to the mounting plate
Mechanical dimensions AC500
28
28
59 (
2
.32)
70.5 (
2
.78)
135 (
5
.31)
67.5 (2.66)
(1.10)
(1.10)
95.5 (3.76)
(2.27)
57.7
(1.59)
40.3
4.9 (0.19)
TB511
123.5 (4.86)
TB521
179.5 (7.07)
TB541
28
(1.10)
28
(1.10)
135 mm
(5.31) inches
Dimensions:
Figure: Dimensions of the AC500 CPU Terminal Bases TB511, TB521 and TB541