Advertisement
Table 1. Application Examples
Across-the-Line/Line to Line Protection
D.C.
A.C. Single phase
A.C. 3 phase
Across the Line Use/Line to Line
Nominal
ZNR
Line Voltage
AC 100 V
ZNR1
AC 120 V
ZNR3
AC 200 V
to AC 220 V
AC 240 V
"ZNR" Transient/Surge Absorbors, Type E, Type CK, SC
f
ZNR1
Protected
Equipment
f
ZNR3
Protected
Equipment
Part Number of ZNR
Type E, CK, SC
ERZC□□EK
ERZC□□CK
ERZVS34C
Line to Line and Line to Ground Protection
D.C.
A.C. Single phase
f : fuse
A.C. 3 phase
f : fuse
Nominal
ZNR
Line Voltage
201
241
AC 100 V
271
to AC 220 V
241
ZNR2
271 ✽
ZNR4
471
AC 240 V
511
– 56 –
f
ZNR1
ZNR2
Thermal
Thermal. Fuse
coupling
f
ZNR3
f
Equipment
f
ZNR4
Thermal
coupling
Line to Ground Use
Part Number of ZNR
Type E, CK, SC
ERZC□□EK
ERZC□□CK
ERZVS34C
Protected
Equipment
f : fuse
Protected
Thermal. Fuse
f : fuse
471
511
821 ✽✽
511
821 ✽✽
01
Aug. 2012
Advertisement
