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SUPPORT INSULATORS TYPE (1-7)W..(A, B, C, D)(1, 2, 3, 4)-(D)(1, 2, 3)
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  • SUPPORT INSULATORS TYPE (1-7)W..(A, B, C, D)(1, 2, 3, 4)-(D)(1, 2, 3)

SUPPORT INSULATORS TYPE (1-7)W..(A, B, C, D)(1, 2, 3, 4)-(D)(1, 2, 3)

Support Insulators Type (1-7)W with A, B, C, D variants and multiple configurations. Explore specifications and suitable applications.

Rated voltage: 2000 V, 8000 V, 10000 V, 11000 V 

Working temperature: -45°C to +120°C 

Relative humidity [40°C]: 95% 

Corrosivity category C5 according to PN-EN ISO 12944-2

PN-EN IEC 60079-0:2018, equivalent to IEC 60079-0:2017; PN-EN 60079-1:2014, equivalent to IEC 60079-1:2014; PN-EN 60079-7:2016, equivalent to IEC 60079-1:2015

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Designation of insulators: (1–7)W..(A, B, C, D)(1, 2, 3, 4)–(D)(1, 2, 3):

(1-7)W..(A, B, C, D)(1, 2, 3, 4) 

Voltage 

W – support insulator symbol 

Thread – M1 

Diameter ØD1 

Design according to drawing 

1 

3200V 

8 

M8 

A 

Ø55 

1 

 

2 

4000V 

10 

M10 

B 

Ø75 

2 

3 

5000V 

12 

M12 

C 

Ø90 

3 

4 

6300V 

16 

M16 

D 

Ø110 

4 

5 

8000V 

 

6 

10000V 

7 

11000V 

(1-7)W..(A, B, C, D)(1, 2, 3, 4)-D(1.2.3) 

Voltage 

W – support insulator symbol 

Thread – M1 

Diameter ØD1 

Design according to drawing 

Divider construction 

1 

3200V 

8 

M8 

A 

Ø55 

1 

D1 

2 

4000V 

10 

M10 

B 

Ø75 

2 

D2 

3 

5000V 

12 

M12 

C 

Ø90 

3 

D3 

4 

6300V 

16 

M16 

D 

Ø110 

4 

 

5 

8000V 

 

6 

10000V 

7 

11000V 

Insulator design versions (1–7)W..(A, B, C, D)(1, 2, 3, 4)

Insulator design versions (1–7)W..(A, B, C, D)(1, 2, 3, 4)–D(1, 2, 3)

Overall dimensions of insulators (1–7)W..(A, B, C, D)(1, 2, 3, 4)–(D)(1, 2, 3)

Insulator Type 

Dimensions [mm] 

D1 

D2 

L 

(1÷7)W..A(-D..) 

Ø55   

Ø43 

20 

(1÷7)W..B(-D..) 

Ø75 

Ø60 

25,5 

(1÷7)W..C(-D..) 

Ø90 

Ø75 

33 

(1÷7)W..D(-D..) 

Ø110 

Ø95 

33 

Connection dimensions of insulators (1–7)W..(A, B, C, D)(1, 2, 3, 4)–(D)(1, 2, 3)

Insulator type 

Rated voltage 

Dimensions [mm] 

M1 

M2 

M3 

H 

H1 

1W8..(-D..) 

 

≤ 3200V 

M8 

M8; M10 

 

M4 

 

≥37 

 

≥55 

1W10..(-D..) 

M10 

M10;M12 

1W12..(-D..) 

M12 

M12;M16 

1W16..(-D..) 

M16 

M16 

 

2W8..(-D..) 

 

≤ 4000V 

M8 

M8; M10 

 

M4 

 

≥45 

 

≥60 

2W10..(-D..) 

M10 

M10;M12 

2W12..(-D..) 

M12 

M12;M16 

2W16..(-D..) 

M16 

M16 

 

3W8..(-D..) 

 

≤ 5000V 

M8 

M8; M10 

 

M4 

 

≥55 

 

≥67 

3W10..(-D..) 

M10 

M10;M12 

3W12..(-D..) 

M12 

M12;M16 

3W16..(-D..) 

M16 

M16 

 

4W10..(-D..) 

 

≤ 6300V 

M10 

M10;M12 

 

M4 

 

≥65 

 

≥78 

4W12..(-D..) 

M12 

M12;M16 

4W16..(-D..) 

M16 

M16 

 

5W10..(-D..) 

 

≤ 8000V 

M10 

M10;M12 

 

M4 

 

≥95 

 

≥96 

5W12..(-D..) 

M12 

M12;M16 

5W16..(-D..) 

M16 

M16 

 

6W10..(-D..) 

≤ 

10000V 

M10 

M10;M12 

 

M4 

 

≥105 

 

≥120 

6W12..(-D..) 

M12 

M12;M16 

6W16..(-D..) 

M16 

M16 

 

7W10..(-D..) 

≤ 

11000V 

M10 

M10;M12 

 

M4 

 

≥115 

 

≥127 

7W12..(-D..) 

M12 

M12;M16 

7W16..(-D..) 

M16 

M16 

Terminal parameters of signaling insulators (1–7)W..(A, B, C, D)(1, 2, 3, 4)–(D)(1, 2, 3)

Insulator type 

Rated voltage 

U±20% [V] 

I±20% [μA] 

2W..-D(1,2,3)* 

4000V 

325 

60 

3W..-D(1,2,3) 

5000V 

310 

52 

4W..-D(1,2,3) 

6300V 

320 

64 

5W..-D(1,2,3) 

8000V 

350 

95 

7W..-D(1,2,3) 

10000V 

300 

96 

7W..-D(1,2,3) 

11000V 

330 

106 

*does not apply to version 2W..A-D(1,2,3) 

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