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What is the part number for contact blocks that are used in relay 8501X relays?

Issue:
Contact block part number for the 8501X relays

Product Line:
8501X relays

Environment:
All

Cause:
Needs the part number for contact blocks that are used in relay 8501X relays

Resolution:
8501XC1 - Standard Cartridge - The standard cartridge, used for most applications, has a black case.

8501XC2 - Overlapping Cartridge -Same NEMA Type A600 AC rating as standard cartridge and a NEMA Type P150 DC rating. When it is used in the
N.O. mode it will close early and when used in the N.C. mode it will open late. If two or more are used together, the N.O. contacts will close
before the N.C. contacts open as the relay picks up. Overlap also occurs during dropout. Overlapping cartridge has a red case.