Design and specifi cations are each subject to change without notice. Ask factory for the current technical specifi cations before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
“ZNR” Transient/Surge Absorbers (Type E/J)
– 68 –
Type E
“ZNR” Transient/Surge Absorbers,
For Thyristor Protection
Type: E
Type: J
Type J
“ZNR” Transient/Surge Absorber for thyristors is
especially designed to protect SCR power controllers
and SCR power sources from high energy tran sient
over voltages.
The ZNR is smaller in size and excellent in the
clamping voltage characteristics as compared with a
conventional selenium surge absorber. The ZNR
Type E is for relatively low handling capacity of trans-
former and Type J is for heavy duty use.
■ Minimum Quantity / Packing Unit
Please see Related Information
■ Recommended Applications
● Surge protection of SCR✽ power controllers
● Surge protection of SCR✽ power sources
✽ SCR = Silicone Controlled Rectifi ers
● RoHS compliant
Note: Ask our factory for Product Speci cation before
use.
● RoHS compliant
Aug. 201203
Design and specifi cations are each subject to change without notice. Ask factory for the current technical specifi cations before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
“ZNR” Transient/Surge Absorbers (Type E/J)
– 69 –
24
ISO
M4
L
W
12
H
ZNR
5
4.3
14
Part No.
Date code
Dot
“ZNR” Transient/Surge Absorbers, Type E
■ Ratings and Characteristics (Type E)
● Operating Temperature Range: –40 to 85 °C
● Storage Temperature Range: –40 to 110 °C
Part No.
Varistor
Voltage
Maximum
Allowable
Voltage
Maximum
Clamping
Voltage
Impulse Life
(2 ms, 104 times)
Commutation
Surge Ratio
V1 mA (V)
ACrms (V)
DC (V) VIp (V) Ip (A) (A) ——
ERZC20EK511P
ERZC20EK541P
ERZC20EK681P
ERZC20EK821P
ERZC20EK911P
ERZC20EK102P
ERZC20EK112P
498 to 542
523 to 560
630 to 678
788 to 848
840 to 904
945 to 1017
1051 to 1181
242
264
330
412
440
495
550
342
373
467
583
622
700
775
760
785
950
1185
1265
1425
1655
10 10
1.45
1.40
1.35
1.35
1.35
1.35
1.35
ERZC32EK511P
ERZC32EK541P
ERZC32EK681P
ERZC32EK821P
ERZC32EK911P
ERZC32EK102P
ERZC32EK112P
498 to 542
523 to 560
630 to 678
788 to 848
840 to 904
945 to 1017
1051 to 1181
242
264
330
412
440
495
550
342
373
467
583
622
700
775
760
785
950
1185
1265
1425
1655
20 20
1.45
1.40
1.35
1.35
1.35
1.35
1.35
■ Dimensions in mm (not to scale) (Type E)
Part No. W H L
ERZC20EK□□□P4 8 ±1 4 2±1 3 9 ±1
ERZC32EK□□□P6 0 ±1 5 5±1 51±1
Aug. 201203
Design and specifi cations are each subject to change without notice. Ask factory for the current technical specifi cations before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
“ZNR” Transient/Surge Absorbers (Type E/J)
– 70 –
A
B
20
46
22
14 3
6.5
104±1
M4
60
C
141±1
N.P.
20
46
22
14 3
6.5
A
B
104±1
M4
60
C
122±1
N.P.
■ Ratings and Characteristics (Type J)
● Operating Temperature Range: –40 to 70 °C
● Storage Temperature Range: –40 to 110 °C
“ZNR” Transient/Surge Absorbers, Type J
■ Dimensions in mm (not to scale)
Style (1) Style(2)
Part No.
Connection
Maximum
Allowable
Voltage
Maximum
Clamping
Voltage
Impulse Life
(2 ms,
104 times)
Commutation
Surge Ratio
Dimensions in mm
ACrms
(V)
DC
(V)
VIp
(V)
Ip
(A) (A) Style A B C
ERZU11JP511
EZRU12JP511
ERZU13JP511
ERZU14JP511
ERZU15JP511
ERZU16JP511
ERZU17JP511
Single 242 342 760
40
70
95
125
150
180
210
40
70
95
125
150
180
210
1.45 (1)
88
104
121
138
155
172
189
108
124
141
158
175
192
209
20
ERZU11JP511B
ERZU12JP511B
ERZU13JP511B
ERZU14JP511B
Delta 242 — 760
40
70
95
125
40
70
95
125
1.45 (2)
120
169
219
268
140
189
239
288
20
ERZU11JP541
ERZU12JP541
ERZU13JP541
ERZU14JP541
ERZU15JP541
ERZU16JP541
ERZU17JP541
Single 264 373 785
40
70
95
125
150
180
210
40
70
95
125
150
180
210
1.40 (1)
88
105
122
139
156
172
189
108
125
142
159
176
192
209
20
ERZU11JP541B
ERZU12JP541B
ERZU13JP541B
ERZU14JP541B
Delta 264 — 785
40
70
95
125
40
70
95
125
1.40 (2)
121
171
221
270
141
191
241
290
20
Aug. 201203
Design and specifi cations are each subject to change without notice. Ask factory for the current technical specifi cations before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
“ZNR” Transient/Surge Absorbers (Type E/J)
– 71 –
Part No.
Connection
Maximum
Allowable
Voltage
Maximum
Clamping
Voltage
Impulse Life
(2 ms,
104 times)
Commutation
Surge Ratio
Dimensions in mm
ACrms
(V)
DC
(V)
VIp
(V)
Ip
(A) (A) Style A B C
ERZU21JP102
ERZU22JP102
ERZU23JP102
ERZU24JP102
ERZU25JP102
ERZU26JP102
Single 484 684 1520
40
70
95
125
150
180
40
70
95
125
150
180
1.45 (1)
102
135
168
199
230
261
122
155
188
219
250
281
20
ERZU21JP102B
ERZU22JP102B Delta 484 — 1520 40
70
40
70 1.45 (2) 166
261
186
281 20
ERZU21JP112
ERZU22JP112
ERZU23JP112
ERZU24JP112
ERZU25JP112
ERZU26JP112
Single 528 746 1570
40
70
95
125
150
180
40
70
95
125
150
180
1.40 (1)
103
136
169
200
232
264
123
156
189
220
252
284
20
ERZU21JP112B
ERZU22JP112B Delta 528 — 1570 40
70
40
70 1.40 (2) 168
264
188
284 20
ERZU21JP132F
ERZU22JP132F
ERZU23JP132F
ERZU24JP132F
ERZU25JP132F
ERZU26JP132F
Single 660 933 1900
40
70
95
125
150
180
40
70
95
125
150
180
1.35 (1)
149
182
214
246
278
310
169
202
234
266
298
330
40
ERZU21JP132H
ERZU22JP132H Delta 660 — 1900 40
70
40
70 1.35 (2) 213
309
233
329 40
ERZU21JP162F
ERZU22JP162F
ERZU23JP162F
ERZU24JP162F
ERZU25JP162F
ERZU26JP162F
Single 825 1167 2375
40
70
95
125
150
180
40
70
95
125
150
180
1.35 (1)
150
184
218
252
286
320
170
204
238
272
306
340
40
ERZU21JP162H
ERZU22JP162H Delta 825 — 2375 40
70
40
70 1.35 (2) 217
317
237
337 40
ERZU21JP192F
ERZU22JP192F
ERZU23JP192F
ERZU24JP192F
ERZU25JP192F
ERZU26JP192F
Single 990 1400 2850
40
70
95
125
150
180
40
70
95
125
150
180
1.35 (1)
152
187
222
257
292
327
172
207
242
277
312
347
40
ERZU21JP192H
ERZU22JP192H Delta 990 — 2850 40
70
40
70 1.35 (2) 222
327
242
347 40
ERZU21JP222F
ERZU22JP222F
ERZU23JP222F
ERZU24JP222F
Single 1100 1550 3325
40
70
95
125
40
70
95
125
1.35 (1)
154
190
227
264
174
210
247
284
40
ERZU21JP222H Delta 1100 — 3325 40 40 1.35 (2) 227 247 40
ERZU31JP252F
ERZU32JP252F
ERZU33JP252F
ERZU34JP252F
Single 1320 1867 3800
40
70
95
125
40
70
95
125
1.35 (1)
167
218
269
320
187
238
289
340
40
ERZU31JP252H Delta 1320 — 3800 40 40 1.35 (2) 266 288 40
Aug. 201203
