Cooper/Crouse Hinds WD034591 (0402971, 192526) polarizer plate; Cooper Wiring Devices/Crouse-Hinds is a division of Eaton. Plate is marked "208Y/120 VAC ARC65C BLUE" on the tab with "0402971" cast into the plate. For use with 60A APRC65 equivalent pin and sleeve receptacles.
