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Varistors (ZNR Surge Absorber)
E type
Varistors (ZNR Surge Absorber) Type E is capable of handling larger surge
energy than Type D in applications to protect electronic equipment or
semiconductor devices from switching and induced lightning surges.
Features
●UL and CSA recognized components
●Very large surge withstanding capability with a compact size
●Direct mounting on boards like a power distribution board available
●Fast response to steep impulse voltage
●Low clamping voltage for better surge protection
●RoHS compliant
Recommended applications
●Transistor, diode, IC, thyristor or triac semiconductor protection
●Surge protection in industrial power plant operations
●Relay or electromagnetic valve surge absorption
●Surge absorption applications in broadcasting, communications devices, traffic/railroad,
agricultural facilities, waterworks
●Surge protection of automatic control devices for power distribution line
Related standards
Standard No.
Title
●Each type designation is not registered by Part Number.
Note : Ask our factory for Product Specification before use.
■ As for handling precautions and minimum quantity / Packing unit please see related information.
Explanation of part numbers
1
2
Ｅ
Ｒ
Ｚ
Product code
Dimensions in mm (not to scale)
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.
UL1449
Surge protective devices
3
4
5
Ｃ
Element size
ISO
24
M4
L
W
12
ZNR
Part No.
Date code
Surge protective devices - Type 5 – Components
6
7
8
E
Ｋ
Type
Tolerance
Part No.
ERZC20EK□□□(Y)
ERZC32EK□□□(Y)
14
CSA C22.2 No.269.5
9
10
11
Nominal varistor voltage
―
Y
UL/CSA Recognized
W
H
48±1
42±1
60±1
55±1
12
Design No.
General
Unit : mm
L
39±1
51±1
14-Dec-20
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Related Manuals for Panasonic ERZC20EK201Y
Summary of Contents for Panasonic ERZC20EK201Y
- Page 1 Varistors (ZNR Surge Absorber) E type Varistors (ZNR Surge Absorber) Type E is capable of handling larger surge energy than Type D in applications to protect electronic equipment or semiconductor devices from switching and induced lightning surges. Features ●UL and CSA recognized components ●Very large surge withstanding capability with a compact size ●Direct mounting on boards like a power distribution board available ●Fast response to steep impulse voltage...
- Page 2 (UL/CSA) （UL/CSA at 100 A designation 1 time Recognized） 1 time Acrms (Ｖ) （A） ACrms (Ｖ) (Ｖ) (Ｖ) ERZC20EK201Y 20EK201U 200 (185 to 225) 8000 ERZC20EK241Y 20EK241U 240 (216 to 264) 8000 ERZC20EK271Y 20EK271U 270 (247 to 303) 8000 ERZC20EK361Y...
- Page 3 E type / 20, 32 series Ratings and characteristics (20 series) ●Operating temperature range : ‒40 to 85 ℃ ●Storage temperature range : ‒40 to 110 ℃ Maximum Maximum Typical Varistor Maximum Maximum peak current clamping Rated capacitance voltage allowable energy (8/20 μs) voltage...
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Page 4: Typical Characteristics
E type / 20 series Typical characteristics Voltage vs. Current (ERZC20EK201(Y) to ERZC20EK511(Y)) Max.Leakage Max.Clamping Voltage Current 2000 ERZC20EK511(Y) ERZC20EK471(Y) ERZC20EK391(Y) 1000 ERZC20EK361(Y) ERZC20EK271(Y) ERZC20EK241(Y) ERZC20EK201(Y) Test current waveform –6 to 10 –3 A: Direct current to 10 A: 8/20 μs –1 Current (A) (ERZC20EK621(Y) to ERZC20EK112(Y)) - Page 5 E type / 32 series Typical characteristics Voltage vs. Current (ERZC32EK201(Y) to ERZC32EK511(Y)) Max.Leakage Max.Clamping Voltage ERZC32EK511(Y) Current 2000 ERZC32EK471(Y) ERZC32EK431(Y) ERZC32EK391(Y) ERZC32EK361(Y) 1000 ERZC32EK271(Y) ERZC32EK241(Y) ERZC32EK201(Y) Test current waveform to 10 A: Direct current –6 –3 –1 to 10 A: 8/20 μs Current (A) (ERZC32EK621(Y) to ERZC32EK112(Y))
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Page 6: Performance Characteristics
E type Performance characteristics Characteristics Test methods / Description Specifications Electrical measurements (initial/after tests) shall be conducted at temperature of 5 to 35 Standard test ― condition ℃, relative humidity of maximum 85 %. The voltage betwen two terminals with the specified measuring current CmA DC applied is called V or V . - Page 7 ■ The technical information contained in this catalog is intended to show only typical operation and application circuit examples of this product. This catalog does not guarantee that such information does not infringe upon the intellectual property rights of Panasonic Industry or any third party, nor imply that the license of such rights has been granted.
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Page 8: Safety Measures
Matters to Be Observed When Using This Product Matters to Be Observed When Using This Product (E / CK / SC-type) Safety measures An abnormal state of E-Type, CK-type, and SC-type varistors (ZNR surge absorber, hereinafter "the product" or "the surge absorber") that results from a problem with service conditions (materials used, the surrounding environment, power conditions, circuit conditions, etc.) may cause a fire accident, electric shock accident, burn accident, or product failure. - Page 9 Matters to Be Observed When Using This Product ■ Do not wash the surge absorber with a solvent (thinner, acetone, etc.) that damages the outer sheath resin. Response to anomalies and handling conditions Be careful not to drop the surge absorber on the floor, etc. The product is likely to suffer mechanical or electrical damage when dropped on the floor.
- Page 10 Matters to Be Observed When Using This Product Table 1 Application example of the product (ordinary application example) Surge absorber placed between lines Surge absorber placed between a line and the ground Single-phase AC Single-phase AC Current fuse ZNR1 Current fuse ZNR1 Protected Protected...
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