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.
“ZNR” Transient/Surge Absorbers (Type CK)
T
D
18
25
77
8
d
H
2-f 3.4
ZNR
Abbreviation of Part No.
Date code
●
Operating Temperature Range : –40 to 85 °C
●
Storage Temperature Range : –40 to 125 °C
Part No.
(UL/CSA Recognized)
Type Designation
Varistor
Voltage
Maximum
Allowable
Voltage
Maximum
Clamping
Voltage
Energy
(2 ms,
1 time)
Maximum
Peak Current
(8/20 µs)
1 time 2 times
V
1 mA
(V) ACrms (V) DC (V) V
XA
(V) Ip (A) (J) (kA) (kA)
ERZC32CK201W 32K201U
200 (185 to 225)
130 170 340 200 210 25 20
ERZC32CK241W 32K241U
240 (216 to 264)
150 200 395 200 240 25 20
ERZC32CK271W 32K271U
270 (247 to 303)
175 225 455 200 255 25 20
ERZC32CK361W 32K361U
360 (324 to 396)
230 300 595 200 325 25 20
ERZC32CK391W 32K391U
390 (351 to 429)
250 320 650 200 350 25 20
ERZC32CK431W 32K431U
430 (387 to 473)
275 350 710 200 400 25 20
ERZC32CK471W 32K471U
470 (423 to 517)
300 385 775 200 405 25 20
ERZC32CK511W 32K511U
510 (459 to 561)
320 415 845 200 405 25 20
ERZC32CK621W 32K621U
620 (558 to 682)
385 505 1025 200 415 25 20
ERZC32CK681W 32K681U
680 (612 to 748)
420 560 1120 200 450 25 20
ERZC32CK751W 32K751U
750 (645 to 825)
460 615 1240 200 500 25 20
ERZC32CK781W 32K781U
780 (702 to 858)
485 640 1290 200 520 25 20
ERZC32CK821W 32K821U
820 (738 to 902)
510 670 1355 200 545 25 20
ERZC32CK911W 32K911U
910 (819 to 1001)
550 745 1500 200 600 25 20
ERZC32CK951W 32K951U
950 (855 to 1045)
575 765 1570 200 600 25 20
ERZC40CK201W 40K201U
200 (185 to 225)
130 170 340 250 260 30 25
ERZC40CK241W 40K241U
240 (216 to 264)
150 200 395 250 300 30 25
ERZC40CK271W 40K271U
270 (247 to 303)
175 225 455 250 340 30 25
ERZC40CK361W 40K361U
360 (324 to 396)
230 300 595 250 405 30 25
ERZC40CK391W 40K391U
390 (351 to 429)
250 320 650 250 435 30 25
ERZC40CK431W 40K431U
430 (387 to 473)
275 350 710 250 500 30 25
ERZC40CK471W 40K471U
470 (423 to 517)
300 385 775 250 505 30 25
ERZC40CK511W 40K511U
510 (459 to 561)
320 415 845 250 505 30 25
ERZC40CK621W 40K621U
620 (558 to 682)
385 505 1025 250 515 30 25
ERZC40CK681W 40K681U
680 (612 to 748)
420 560 1120 250 560 30 25
ERZC40CK751W 40K751U
750 (645 to 825)
460 615 1240 250 625 30 25
ERZC40CK781W 40K781U
780 (702 to 858)
485 640 1290 250 650 30 25
ERZC40CK821W 40K821U
820 (738 to 902)
510 670 1355 250 680 30 25
ERZC40CK911W 40K911U
910 (819 to 1001)
550 745 1500 250 750 30 25
ERZC40CK951W 40K951U
950 (855 to 1045)
575 765 1570 250 750 30 25
Part No.
(UL/CSA Recognized)
Type Designation
D max. H max. T max. d
ERZC32CK201W 32K201U
36 46
7.5
5.7±1.0
ERZC32CK241W 32K241U 7.5 5.4±1.0
ERZC32CK271W 32K271U 8.5 5.2±1.0
ERZC32CK361W 32K361U 9.0 4.6±1.0
ERZC32CK391W 32K391U 9.0 4.4±1.0
ERZC32CK431W 32K431U 9.0 4.1±1.0
ERZC32CK471W 32K471U 9.7 3.9±1.0
ERZC32CK511W 32K511U 9.7 4.5±1.0
ERZC32CK621W 32K621U 9.7 3.9±1.0
ERZC32CK681W 32K681U 9.7 3.6±1.0
ERZC32CK751W 32K751U 10.5 3.3±1.0
ERZC32CK781W 32K781U 10.5 3.1±1.0
ERZC32CK821W 32K821U 10.5 2.9±1.0
ERZC32CK911W 32K911U 11.5 2.5±1.0
ERZC32CK951W 32K951U 11.5 2.3±1.0
ERZC40CK201W 40K201U
44 55
7.5
5.7±1.0
ERZC40CK241W 40K241U 7.5 5.4±1.0
ERZC40CK271W 40K271U 8.5 5.2±1.0
ERZC40CK361W 40K361U 9.0 4.6±1.0
ERZC40CK391W 40K391U 9.0 4.4±1.0
ERZC40CK431W 40K431U 9.0 4.1±1.0
ERZC40CK471W 40K471U 9.7 3.9±1.0
ERZC40CK511W 40K511U 9.7 4.5±1.0
ERZC40CK621W 40K621U 9.7 3.9±1.0
ERZC40CK681W 40K681U 9.7 3.6±1.0
ERZC40CK751W 40K751U 10.5 3.3±1.0
ERZC40CK781W 40K781U 10.5 3.1±1.0
ERZC40CK821W 40K821U 10.5 2.9±1.0
ERZC40CK911W 40K911U 11.5 2.5±1.0
ERZC40CK951W 40K951U 11.5 2.3±1.0
Ratings and Characteristics
Dimensions in mm (not to scale)
Mar. 201503
