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Suitable as construction material for electrical and mechanical applications where high humidity occurs. Lowest water absorption of all the Etronit types. Good electrical properties at high frequencies.
Closest relevant standards
IEC 61212:-
NEMA LI 1:XXX
DIN 7735:-
Etronit IV C conforms to NEMA XXX and has the lowest water absorption of all Etronit types. It has a bending strength of 120 MPa, cohesion between layers of 145 MPa, and a temperature index of 120°C matching the rest of the range. It is resistant to tropical conditions and particularly popular in the US, where a single insulation material needs to perform reliably both in milder northern climates and in the high-humidity conditions further south.
The main difference between Etronit B 65 and Etronit IV C is mechanical/electrical strength versus moisture resistance. B 65 is the stronger material electrically and mechanically, and is positioned for normal-humidity, low-voltage applications. IV C trades away some of that strength for by far the better moisture resistance of the two, which is why it is the one built for high-humidity and tropical conditions.
Suitable for electrical insulation and other electrical applications.
Suitable for applications where the materials are exposed to mechanical impact.
The compact structure of the material optimises its mechanical and electrotechnical properties.
The material can withstand aggressive tropical environments.
| Mechanical properties | Test method | Dimension | Value | Unit | Note |
|---|---|---|---|---|---|
| Bending strength | ISO 178 | id>100 mm | 120 | MPa | *1 |
| Compressive strength, axial | ISO 604 | 130 | MPa | *1 | |
| Cohesion between layers | IEC 61212-2 | id<100 mm | 145 | MPa | *1 |
| Electrical properties | Test method | Thickness | Value | Unit | Note |
|---|---|---|---|---|---|
| Electrical strength in oil at 90°C, perpendicular | IEC 60243-1 | B) 3 mm | 6.7 | kV/mm | *2 |
| Electrical strength in oil at 90°C, parallel | IEC 60243-1 | B) ≥ 3 mm | 25 | kV/25mm | *2 |
| Permitivity 50 MHz | IEC 62631-2-1 | 5 | *3 | ||
| Permitivity 1 MHz | IEC 62631-2-1 | 5 | *3 | ||
| Dissipation factor 50 MHz | IEC 62631-2-1 | 0.03 | *3 | ||
| Dissipation factor 1 MHz | IEC 62631-2-1 | 0.03 | *3 | ||
| Insulation resistance after submersion in water | IEC 62631-3-3 | 200 | MΩ | *4 | |
| Comparative tracking index | IEC 60112 | ≥ 3 mm | CTI | * |
| Physical and thermal properties | Test method | Thickness | Value | Unit | Note |
|---|---|---|---|---|---|
| Temperature index 20,000 h (T.I.) | IEC 60216 | ≥ 3 mm | 120 | °C | *F |
| Fire class | IEC 60695-11-10 | * | |||
| Density | ISO 1183-A | All | 1.25 | g/cm³ | * |
| Water absorption | ISO 62-1 | 2 | mg/cm² | * | |
| 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 (CITNLP) | NF X 70-100-1/-2 | * | |||
| Toxicity (CITG, 8 min) | EN 17084 | * |
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.
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