Will the "B" thermal unit fit the overload relay block designed for the "FB" thermal unit?

Issue:
Identify the compatibility between the B and FB thermal units.

Product Line:
Digest 177 Section 16: Nema and Definite Purpose and Starters

Environment:
NEMA Contactors and Starters

Resolution:
Yes, any block that uses the "FB" thermal unit will accept the "B" thermal unit.

Released for: Schneider Electric USA