NEMA GRADES: XP, XPC, XX, XXP, XXX, XXXPC, XXXP
XP: | Applications – Electrical switches, household appliances, electrical toys, automotive electrical parts. Characteristics – Primarily intended for hot punching. Combines reasonable good physical strength with lower moisture absorption. |
XPC: | Applications – Fuse blocks, switches for home electrical appliances. Characteristics – Intended for cold punching electrical and mechanical parts involving nominal voltage-frequency-humidity relationships. |
XX: | Conforms to Military Specification MIL-P-3115C, Type PBG. Applications – Instrument panels, machined washers. Characteristics – Has good balance of electrical, mechanical and machining properties. Machines to smooth clean surfaces. |
XXP: | Applications – Terminal boards, insulating washers and spacers and switch parts. Characteristics – A general purpose hot punching stock combining good physical strength with good electrical properties under normal humidity conditions. |
XXX: | Applications – Jack spacers, panels for radio and television, high voltage switch gear. Characteristics – Suitable for electrical insulating parts, particularly where low power factor and low moisture absorption are required. |
XXXPC: | Conforms to Military Specification MIL-P-3115C, Type PBE-P. Applications – Electrical and electronic components, terminal boards, instruments and appliances. Characteristics – Exceptional characteristics for a cold punched grade. Stable punching properties and unusually long shelf life. |
XXXP: | Applications – Electrical and electronic insulation. Characteristics – Fire resistant. Excellent electrical properties. |