Jeff Genac, Revere's Industrial Control Specialist, goes into a deeper dive on the new 1492-P Terminal Blocks. Specifically, explaining how the new style uses a new angular clamping method that will hold a wider range of wires more securely than either of the other terminal block styles. This increases the wire range capabilities of the blocks to make selection and installation easier.
1492-J4 (Screw) - Compatible with 22-10 AWG wire
1492-L4 (Spring) - Compatible with 26-10 AWG wire
1492-P4 (Push-in) - Compatible with 28-10 AWG wire