ABB ACB - PR123 auxiliary circuit

Charbel

Member
Join Date
Jan 2012
Location
Beirut
Posts
307
Dear,

i was looking at the wiring diagram of the auxiliary circuits of PR123 trip unit of ABB MCCB (attached)

i was able to depict K51 output signals are short circuit protection and earth fault protection.

i need to get a open status from breaker, is it possible to take it from Q/26 XK4-1 and XK4-2 and consider in the input module side that this is a NO contact?

thanks a lot!

PR123 trip unit.jpg
 

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