| Major Ratings of Meidensha
ZnO Blocks |
| Application for IEC Standard |
Recommended UR
(kVrms) |
Model |
Dimensions (mm) |
Range of cirtical operating voltage
(V1mA-DC)
(kV-DC)
|
Max. residual voltage ratio
(VxkA/V1mA)
(at 8/20 s) |
Current withstand
capability |
Spec. No. |
| Diameter |
Height |
4/10s
(kA) |
2ms (A) |
| 5kA Distribution |
3.0 |
ZE32GE20A |
31.5±1.0
*36.5±1.0 available |
19.5±1.0 |
4.55 - 5.40 |
1.78(at 5kA) |
65 |
100 |
TS-9702A |
| 4.5 |
ZE32GE30A |
29.5±1.0 |
6.80 - 8.10 |
| 6.0 |
ZE32GE40A |
39.5±1.0 |
9.10 - 10.80 |
| 10kA Distribution & Class 1 |
3.0 |
ZE42GE20A |
42.0±1.0 |
19.5±1.0 |
4.55 - 5.40 |
1.83(at 10kA) |
100 |
250 |
TS-9802 |
| 4.5 |
ZE42GE30A |
29.5±1.0 |
6.80 - 8.10 |
| 6.0 |
ZE42GE40A |
39.5±1.0 |
9.10 - 10.80 |
| 10kA Class 2 |
1.5 |
ZE48G11 |
48.5±1.0 |
11.5±1.0 |
2.10 - 2.40 |
1.79(at 10kA) |
100 |
500 |
TS-9704A |
| 3.0 |
ZE48G22 |
22.0±1.0 |
4.18 - 4.82 |
| 5.0 |
ZE48G37 |
37.0±1.0 |
6.92 - 8.08 |
| 10kA Class 3 |
1.5 |
ZE64G11 |
64.5±1.0 |
11.5±1.0 |
2.10 - 2.40 |
1.69(at 10kA) |
100 |
1000 |
TS-9801A |
| 3.0 |
ZE64G23 |
22.5±1.0 |
4.18 - 4.82 |
| 6.0 |
ZE64G45 |
44.5±1.0 |
8.42 - 9.58 |
| 20kA Class 4 |
3.0 |
ZE74G23 |
74.5±1.0 |
22.5±1.0 |
4.18 - 4.82 |
1.78(at 20kA) |
100 |
1300 |
TS-9730 |
| Note: |
|
| a) UR: Rated voltage / MCOV (Maximum
continuous operating voltage) |
| b) Recommended MCOV: UR x 0.8 |
| c) Special purpose blocks are available;
For DC use, For under oil use |
