How to convert 8501XO normally open contacts to normally closed in the field?

FA111333

15/05/2019

Issue:
8501XO conversion

Product Line:
Industrial Relays

Environment:
Type X

Resolution:
Remove the top plate and/or adder deck and pull out the contact cartridge then turn it over.  Put the cartridge back into the cavity and install the cover/adder deck .

Green indication through the window indicates a N.O. contact and and yellow indicates N.C. contact