NEMA GPO-3 is a flame retardant, rigid fiberglass reinforced plastic material used for general purpose electrical and/or mechanical applications where low cost is desired. GPO-3 can withstand higher temperatures than GPO-1 or GPO-2, and has better electrical characteristics.
Sheet Sizes: 36"x72"; 48"x60"; 48"x96"
Thickness: 1/32" to 2"
Color: Red
Specifications
| Density | 112 pcf / 0.65 pci |
| Maximum operating temperature | |
| - electrical | 320ºF (160ºC) |
| - mechanical | 302ºF (150ºC) |
| Water absorption | 0.2-0.44% |
| Compression strength ASTM D-695 | 30,000-33,100 psi |
| Tensile strength ASTM D-638 | 7800-94000 psi |
| Flexural strength ASTM D-790 | 22,100-25,000 psi |
| Impact strength ASTM D-256 | 8.9-9.5 Izod ft-lb/in |
| Thermal conductivity ASTM D-177 | 1.9 BTU/hr/sf/inºF |
| Coefficient of therm expansion ASTM D-696 | 2 x 0.0001 in/in/ºC |
| Arc resistance | 180-194 sec |
