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Detail Information

Water Absorption: 0.03% Tensile Strength: 162Mpa
CTI: 600 Temperature Index: 155℃
Color: Red And White Material: Glass Fiber And Polyester
High Light:

183S Arc Resistance GPO3 Fiberglass Sheet


UL GPO3 Fiberglass Sheet


UPGM203 Fiberglass Board

Product Description

Big size of GPO-3(UPGM203) sheet with UL and Reach&RoHs certificates meets Arc resistance 183 seconds


GPO3(UPGM203) also named glass fiber mat sheet or polyester resin sheet .

Polyester sheet is a stratified insulator made from fibre glass blanket and polyester resin. With very low hygrometric susceptibility, small losses at high frequency, excellent mechanical properties, good dielectric properties, V-0 flame resistance.


This material has certified by ROHS/REACH for meeting environmental requirements .

In order to meet the requirement for exporting to Europe and North America , the material have certificates of UL.

UL 183S Arc Resistance UPGM203 GPO3 Fiberglass Sheet 0

Feature of GPO-3


It has nice property on

(1) It is the advance retardant ,anti-impact and anti corrosion material in these recent years

(2) Arc resistence could reach more than 180S

(3) Good electronic performance under high temperature,good performance for anti leakage of electronic

(4) flame-retardant grade could reach 94-V0, thermal endurance class could reach F grade

(5) It is the advance retardant ,anti-impact and anti corrosion material in these recent years

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 this material 


It is mainly used as support for muddy, separators in transformer and electric machines, pitctures, etc.

• breaker ACB application: safety shutter, security shutters, spaceliner, white clapboard, etc

• MCCB application: white clapboard, compartment arc board,

• Switchgear separator system front and back,

• Workpiecc is available, which will depend on you client speical requests

• There are High fiberglass, Ethylene, Wave surface for choice

UL 183S Arc Resistance UPGM203 GPO3 Fiberglass Sheet 1UL 183S Arc Resistance UPGM203 GPO3 Fiberglass Sheet 2

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