Omron PRT1-COM Operation Manual page 112

Relay Output Units
Wiring
24 VDC
+ --
I/O power
supply
Dimensions
Note The vertical center of the Unit is 4.9 mm lower than the center of the DIN track.
The Unit therefore extends downward 41.4 mm (including the mounting hook)
from the DIN track center.
Section 6-4
AC (DC power supply is
also possible)
Independent commons
are also possible.
Approx. 82
(Unit: mm)
101