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180S Arc Resistance GPO3 UPGM203 Fiberglass Insulation Sheet

180S Arc Resistance GPO3 UPGM203 Fiberglass Insulation Sheet

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    UPGM203 Fiberglass Insulation sheet


    180S Arc Resistance Fiberglass Insulation sheet


    Insulation GPO3 Fiberglass Sheet

  • Arc Resistance
    180 Second
  • CTI
  • Color
    Red And White
  • Size
  • Thickness Range
  • Temperature Index
    F Class
  • Minimum Order Quantity
  • Price
  • Packaging Details
  • Delivery Time
  • Payment Terms
    L/C, T/T, Western Union
  • Supply Ability

180S Arc Resistance GPO3 UPGM203 Fiberglass Insulation Sheet

Insulation material GPO-3(UPGM203) meet ROHS/REACH and with certificate of UL


GPO3 fiberglass reinforced polyester sheet, known as UPGM203,are manufactured using polyester resin and fiberglass mat under high temperature.

GPO-3 fiberglass reinforced polyester sheet perform well in electrical application that require high arc and track resistance ,as well as flame resistance,physical strength and high heat resistance.

All our UP GM 203 fiberglass reinforced polyester sheet products are UL recognized , we are the GPO-3 material manufacturer in China , this material has been supplying to many end user who is top500 and industry leader corporation .

Thickness tolerance will be better than IEC , even if the thickness tolerance must be met ±0.2mm by 20mm , we can do it by low production cost .

180S Arc Resistance GPO3 UPGM203 Fiberglass Insulation Sheet 0180S Arc Resistance GPO3 UPGM203 Fiberglass Insulation Sheet 1

Feature of GPO3


It has nice properties on fire resistance , according to certificated by UL , it meets UL94-V0;

It has nice electrical properties , it meets CTI600

GPO-3 sheet can be easily machined by CNC

It has property on arc resistance , the test value is more than 180 seconds

It is the green product and have already passed the recognized by RoHs and Reach.

It is the customized products can be machined as per client’s drawings

Hong Cheng Grade HC-GPO3
IEC 893 / EN 60893 Grade UP GM 203
DIN 7735 Grade HM 2471
Items Test Method Unit Typical Values
Physical Properties Color Visual inspection ---- Red/White/Brown/Grey
Specific Gravity IEC 60893-2:2003 g/cm3 1.95-2.05
Water absorption ISO62:2008 % ≤0.5
Mechanical properties Tensile Strength IEC 60893-2:2003 Mpa ≥130
Compressive strength IEC 60893-2:2003 ≥300
Flexural Strength IEC 60893-2:2003 ≥180
Impact strength IEC 60893-2:2003 KJ/m2 ≥60
Electrical properties Volume Resistivity IEC 60093:1980 Ω·m ≥ 1.0 x 1010
Surface Resistivity IEC 60093:1980 Ω ≥ 1.0 x 1012
Electric Strength ┴ IEC 60893-2:2003 kV/mm ≥ 12
Breakdown Voltage // IEC 60893-2:2003 kV/25mm ≥ 80
Arc Resistance IEC 61621:1997 sec ≥180
PTI Proof Tracking Index PTI IEC 60893-2:2003 --- ≥600
Dielectric Constant IEC 60893-2:2003 --- 4.0-5.0
tgδ Dissipation Factor IEC 60893-2:2003 --- ≤0.03
Thermal properties Coefficient of Thermal Expansion ASTME 228-11 1/K ≤2x10-5
Temperature Index IEC 60085:2004 155
Flame Resistance performance Oxygen Index ISO 4589-2:1996 %O2 ≥ 30
Flame Resistance IEC 60893-2:2003 --- V-0
Toxicant(Emission halogen etc.) E662 --- Low
Other properties The anti microbial properties of bacteria G21-G22 --- good



Application of material

GPO-3(UPGM203) used extensively in the making of phase and end barriers , insulating supports , bus bar supports , mounting panels in switch gear and other types of electrical apparatus.

Cable clamp in the switch gear

Top cover and bottom plate in the transformer

Insulation sheet in UPS cabinet

180S Arc Resistance GPO3 UPGM203 Fiberglass Insulation Sheet 2