Can the PTF08A-E Socket be used with LY1 or LY2 General-purpose Relays?

Yes, it can be used. When there is an "-E" at the end of the model number, it indicates that Relays have finger protection (i.e., a terminal cover). (Round crimp terminals cannot be used. Use forked crimp terminals.)

Note: When using PTF08A-E, PTF08A, or PT08 with a LY1, connect between sockets terminals 1 and 2, 3 and 4, and 5 and 6 when using over 10 A.