“ZNR” Transient/Surge Absorbers (Type G)
“ZNR” Transient/Surge Absorbers
Type:
G
■ Recommended Applications
High energy transient over voltages generated by
switching on/off of a vacuum relay in power distribution
line can cause insulation breakdown of high voltage
electronic equipment/devices and power cables etc...
The ZNR Type F and G are gapless type arresters
u s i n g s i n t e re d b o d i e s o f z i n c - ox i d e a n d a re
characterized by the excellent characteristics of high
energy handling capability, fast response time and low
clamp ratio etc...
The ZN R and G have wide applications for
protection of high-voltage motors, tranformers, rectifiers
and anticorrosion layers of powercables from high
energy transient overvoltages/surges.
● Protection of high voltage motors, transformers or
rectifiers from switching surges
● S witching surge absorption in vacuum circuit
interrupters
● Protection of anti-corrosion layer of under ground
electric power cable from induced lightning or switching
surges
Note: Ask our factory for Product Specification before
use.
■ Minimum Quantity / Packing Unit
● RoHS compliant
Please see Related Information
■ Ratings and Characteristics
● Operating Temperature Range: –25 to 70 °C
● Storage Temperature Range: –40 to 85 °C
Part No.
ERZA20GS852H
ERZA20GS173H
Connection
AC 3.3 kV
Line-Ground
AC 6.6 kV
Line-Ground
Varistor Voltage (V1 mA)
0.75
8.50±0.50 kV
1.5
17.0±1.0 kV
12.75 kV
25.5 kV
5000 A
5000 A
AC 3.45 kV
AC 6.9 kV
20 A
20 A
1300 J
2600 J
Characteristics
Maximum Clamping Voltage
@ 100 A (8/20 µs)
Maximum Peak Current
(8/20 µs, 2 times)
Maximum Allowable Voltage
Impulse Life
(2 ms, 104 times)
Maximum Allowable Energy
Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
01 Aug. 2012
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