klm
  •  klm
  • 70.75848% (Friendly)
  • Advanced Member Topic Starter
2020-04-29T21:19:07Z
Hello,-



If you look at a typical Allen-Bradley output Module (in this example 1746-0W8) and read the specifications you will see this;

MAKE: BREAK:
120VAC 15A 1.5A

->] [<- <-] [->


What are they trying to explain/communicate here?

Thanks-
Ken-
Guest
2020-04-29T21:21:25Z
The ratings you mentioned are the 120VAC ratings. The contacts have different make/break ratings. In other words when the output is energized and the contacts close or 'make,' the contact can handle an inrush of 15A. When you go to turn off the output and the contact has to open or 'break,' the contact should have no more than 1.5A of current accross it. Any time you break a circuit, you get arcing. Different contacts can handle greater or lesser amounts depending on their design.
klm
  •  klm
  • 70.75848% (Friendly)
  • Advanced Member Topic Starter
2020-04-29T21:26:07Z
I was wondering what that was - Thanks for clearing that up.



K-
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