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Table 1 Application example of the product (ordinary application example)
Surge absorber placed between lines
DC
Single-phase AC
Current fuse
L
N
Three-phase AC
Current fuse
Power supply
ZNR
voltage
[AC]
100 V
120 V
200 V
ZNR 1
ZNR 3
220 V
240 V
380 V
Processing conditions
■ Do not apply vibration, impact (drop impact, etc.), or pressure strong enough to crack the outer sheath resin or absorber
body of the surge absorber.
■ When coating the surge absorber with a resin or embedding it in a resin mold, avoid using a resin that degrades the
surge absorber.
■ Do not bend or apply a force to the lead of a D-type surge absorber close to the outer sheath resin.
ZNR1
Protected
device
ZNR3 ZNR3
Protected
device
ZNR3
Nominal varistor voltage
D-type
SMD-type
201 to 361*
201 to 361*
241 to 431*
241 to 431*
471 to 621*
471
471 to 621*
471
-
511、 621*
-
751、 821*
Matters to Be Observed When Using This Product
Surge absorber placed between a line and the ground
DC
Single-phase AC
Current fuse
ZNR1
L
N
ZNR2
Thermal coupling
Three-phase AC
Current fuse
ZNR3
ZNR3
ZNR4
Thermal coupling
Power supply
ZNR
voltage
[AC]
100 V
220 V
ZNR 2
ZNR 4
230 V
380 V
* Choose the element size while taking surge conditions into consideration.
Protected
device
Temperature fuse
Protected
device
Temperature fuse
Nominal varistor voltage
D-type
SMD-type
471
471
511
-
621*
-
-
821 or higher**
182***
-
511
-
621*
-
-
821 or higher**
182**
-
112**
-
182***
-
30-Jun-23
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