G-Etronax PM GPO 3

Thermal class F material characterised by good electrical properties such as a high disruptive voltage in air and oil, the highest arc and tracking current resistance. Self-extinguishing. Low smoke production, halogen-free. Used as insulation material in electrotechnical constructions such as cabinet-installed switchboard systems, dividing plates and rail supports.

G-Etronax PM GPO 3 - Sheet

A standard material with good properties on both the mechanical and electrical side. It is among the materials in our range with a CTI of 600, giving it strong electrotechnical properties.
Used for transformer bushings in particular and widely used as general insulation inside electrical cabinets.
Available in two colour variants: red and white.

GPO 3 vs PM 953

PM 953 and GPO 3 are near-identical materials, both conforming to the UP CM 203 (IEC) / GPO 3 (NEMA) standards. PM 953 has marginally better mechanical properties than GPO 3, while GPO 3 in turn scores higher on electrical properties. Both materials share the highest possible Comparative Tracking Index of 600. The mechanical edge on PM 953 is what makes it suitable for inter-carriage train connectors, where the material needs to be perforated with many holes without losing structural strength.

Properties

Electrotechnical properties

Suitable for electrical insulation and other electrical applications.

Mechanical properties

Suitable for applications where the materials are exposed to mechanical impact.

Thermal stability

The material remains functional and retains its properties even at high temperatures.

Easy to machine

The easy-to-machine material makes for unlimited possibilities.

Overview

Mechanical properties	Test method	Thickness	Value	Unit	Note
Bending strength at RT	ISO 178	≥ 1,5 mm	160	MPa	*1
Bending strength at a high temperature	ISO 178	≥ 1,5 mm	70	MPa	*A
Modulus of elasticity	ISO 178	≥ 1,5 mm	10000	MPa	*1
Compressive strength	ISO 604	≥ 5 mm	240	MPa	*1
Izod impact strength, parallel with layers	ISO 180/2A	≥ 5 mm	50	Kj/m²	*1
Shearing strength, parallel	IEC 60893-2	≥ 5 mm	20	MPa	*1
Tensile strength	ISO 527	≥ 1,6 mm	100	MPa	*1

Electrical properties	Test method	Thickness	Value	Unit	Note
Electrical strength in oil at 90°C, perpendicular	IEC 60243-1	3 mm	12	kV/mm	*2
Electrical strength in oil at 90°C, parallel	IEC 60243-1	≥ 3 mm	60	kV/25mm	*2
Permitivity 50 MHz	IEC 62631-2-1	≤ 3 mm	4		*3
Permitivity 1 MHz	IEC 62631-2-1	≤ 3 mm	4		*3
Dissipation factor 50 MHz	IEC 62631-2-1	≤ 3 mm	0.04		*3
Dissipation factor 1 MHz	IEC 62631-2-1	≤ 3 mm	0.04		*3
Insulation resistance after submersion in water	IEC 62631-3-3	All	1000	MΩ	*4
Comparative tracking index	IEC 60112	≥ 3 mm	600	CTI	*1

Physical and thermal properties	Test method	Thickness	Value	Unit	Note
Temperature index 20,000 h (T.I.)	IEC 60216	≥ 3 mm	155	°C	*
Fire class	IEC 60695-11-10	≥ 3 mm	V-0		*
Density	ISO 1183-A	All	1.85	g/cm³	*
Water absorption	ISO 62-1	50x50x3 mm	30	mg	*
Smoke emission & toxicity	EN 45545-2; R22, R23 & R24				*
Oxygen Index (OI)	EN ISO 4589-2			%
Smoke density (Ds max.)	EN ISO 5659-2				*
Smoke density (Ds max.)	EN ISO 5659-2				*
Toxicity (CIT_NLP)	NF X 70-100-1/-2				*
Toxicity (CIT_{G, 8 min})	EN 17084				*

Conditioning

1 24h/23°C/50%RH

2 24h/23°C/50%RH + 1h/ in oil at 90°C

3 96h/105°C + 1h/23°C/20%RH

4 24h/50°C/<20% RH + 24h in water at 23°C

Notes

A 1h/130°C / measured at 130°C

The above values are average values resulting from extensive tests in our laboratories. ELEKTRO-ISOLA A/S disclaims any and all liability for the performance of our materials in applications outside our control. Elektro-Isola A/S reserves the right to modify the above data without notice or further information. Furthermore, we refer to our general disclaimer.

* Note that color and surface are indicative. As this is a technical product, colour and expression may vary according to dimensions, batches and machining. If you want further information or have special decorative needs, please feel free to contact us.