What is the difference between the SyMax Model 50 programmable controllers 8005CP50 and 8005CP51?

Issue

What is the difference between the SyMax Model 50 programmable controllers 8005CP50 and 8005CP51?

Product Line

SyMax

Environment

8005CP50

Resolution

The difference between the two SyMax Model 50 programmable controllers is the power voltage rating.
8005CP50 is a 120/240 VAC Processor Unit.
8005CP51 is a 24 VDC Processor Unit.