CA01082E_Catalog 30

30 - ARRESTERS - PRODUCTS

Porcelain Housed Surge Arresters – MH3/MH4

MH3 & MH4 Physical Characteristics

Power Frequency Withstand Voltage (kV)

Creepage Distance - Inches (mm)

Lightning Withstand Voltage (kV)

Switching Withstand Voltage (kV)

Grading Ring Height A - Inches (mm)

Grading Ring Diameter B - Inches (mm)

Um (kV)

Ur (kV)

Pollution Level*

Total Height - Inches (mm)

Drawing Figure

300

216

M

253 (6414)

95.6 (2429)

1018

936

588

3

18.0 (457)

40.0 (990)

300

228-240

M

253 (6414)

95.6 (2429)

1018

936

588

3

15.0 (381)

25.2 (640)

300

258-264

M

279 (7081)

102 (2594)

1112

1000

639

3

15.0 (381)

25.2 (640)

300

216

H

305 (7748)

109 (2759)

1206

1064

690

3

18.0 (457)

40.0 (990)

300

228-264

H

305 (7748)

109 (2759)

1206

1064

690

3

15.0 (381)

25.2 (640)

300

216

V

379 (9621)

141 (3572)

1527

1404

882

4

18.0 (457)

40.0 (990)

300

228-264

V

379 (9621)

141 (3572)

1527

1404

882

4

15.0 (381)

25.2 (640)

362

258-288

M

305 (7748)

109 (2759)

1206

1064

690

3

18.0 (457)

40.0 (990)

362

258-288

H

379 (9621)

141 (3572)

1527

1404

882

4

18.0 (457)

40.0 (990)

362

258-288

V

458 (11622)

160 (4067)

1809

1596

1035

4

18.0 (457)

40.0 (990)

420

330-336

M

353 (8954)

134 (3407)

1459

1338

800

4

35.7 (908)

60.2 (1530)

420

360

M

379 (9621)

141 (3572)

1527

1404

882

4

18.0 (457)

40.0 (990)

420

372-378

M

405 (10288)

147 (3737)

1621

1468

933

4

18.0 (457)

40.0 (990)

420

390-396

M

431 (10955)

154 (3902)

1715

1532

984

4

18.0 (457)

40.0 (990)

420

420

M

458 (11622)

160 (4067)

1809

1596

1035

4

18.0 (457)

40.0 (990)

420

330-336

H

431 (10955)

154 (3902)

1715

1532

984

4

35.7 (908)

60.2 (1530)

420

360-396

H

431 (10955)

154 (3902)

1715

1532

984

4

18.0 (457)

40.0 (990)

420

420

H

458 (11622)

160 (4067)

1809

1596

1035

4

18.0 (457)

40.0 (990)

420

330-336

V

531 (13495)

192 (4880)

2130

1936

1227

5

35.7 (908)

60.2 (1530)

420

360-420

V

531 (13495)

192 (4880)

2130

1936

1227

5

18.0 (457)

40.0 (990)

420

420

H

487 (12360)

162 (4123)

1965

1424

1011

4

18.0 (457)

39.0 (990)

420

330-420

V

516 (13110)

169 (4293)

2070

1500

1065

4

18.0 (457)

39.0 (990)

* M = Medium, H = Heavy, V = Very Heavy

30-54 | www.hubbell.com/hubbellpowersystems