NEMA GPO-3

GPO-3 material is a mineral filled, continuous strand fiberglass-mat-reinforced thermoset unsaturated polyester material. It is strong, stiff, impact resistant, and dimensionally stable. These electrical-grade fiberglass sheets provide great electrical properties are arc, flame, and track resistant. This material is frequently used for electrical insulating applications. Additionally, GPO-3 is also commonly used in several mechanical applications where dimensional stability, resilience, stiffness, and cost effectiveness is a necessity.

GPO-3 Applications:

• GPO-3 can be used for several applications, including phase and end barriers, busbar supports, insulating supports, transformers, antenna bases, spacers, and more.

GPO-3 Advantages:

• For use in the transit industry, where smoke generation and smoke toxicity are of primary concern. It is also recommended for switchgear, connectors, and control panels.

GPO-3 Product Downloads:

• GPO-3 Data Sheet

• GPO Product Comparison

• GPO-3 SDS

GPO-3 Physical Properties**:

• Size - 36" x 72" sheets in thicknesses from 1/32" to 2"; 48" x 96" sheets in thicknesses from 1/16" to 1"

• Tensile Strength (ASTM D-638) - 7800 psi

• Operating Temp - 266º - 320º F (130º - 160º C)

• Compressive Strength (ASTM D-695) - 33,100 psi

• Electrical Strength Perpendicular (ASTM D149) - 450 Vpm

• Thermal Conductivity (BTU/hr/ft²/in/ºF) - 1.90

• Arc Resistance (ASTM D495) - 180 sec

GPO-3 Angle, Channel, and Other Forms:

• Vendor Brochure

• Glastic Electrical Insulating Structural Shapes

**Specifications listed represent typical average values for 0.063" thick material