Can MR2P Ratchet Relays be replaced with G4Q-212S Ratchet Relays?

Yes, MR2P is a discontinued product which can be replaced with G4Q-212S. (Specify the coil voltage.) MR2P and G4Q-212S are interchangeable.

Note: These Relays are socket-mounted plug-in type. The Sockets are separately sold.