Panasonic ZNR TYPE E دليل المستخدم

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“ZNR” Transient/Surge Absorbers
“ZNR” Transient/Surge Absorbors, Type E, Type CK, SC
“ZNR” Transient/Surge Absorbers, Type E
“ZNR” Transient/Surge Absorbers, Type CK, SC
Precautions for Handling
1. Precautions for Safety
The “ZNR” Transient/Surge Absorbers (hereafter referred to as “The ZNR Varistors”) may fail in a short-circuit mode
or in an open-circuit mode, when subjected to severe conditions of electrical, environmental and/or me chanical
stresses beyond their specified “ Ratings” and spe

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“ZNR” Transient/Surge Absorbors, Type E, Type CK, SC 2.2 Circuit Design 1 2.4 Environmental Conditions (1)The ZNR Varistors shall not be exposed (Selection of Varistor Voltage Rating) 2.2.1 General Precautions outdoors, because of being designed for in doors In selection of Varistor Voltage Ratings for line use. protection, following general precautions shall be (2)The ZNR Varistors shall not be operated beyond taken in your consideration; the Specified O perating Temperature Range and (1

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“ZNR” Transient/Surge Absorbers “ZNR” Transient/Surge Absorbors, Type E, Type CK, SC Table 1. Application Examples Across-the-Line/Line to Line Protection Line to Line and Line to Ground Protection D.C. D.C. A.C. Single phase A.C. Single phase f f ZNR1 Protected ZNR1 Protected Equipment Equipment ZNR2 Thermal Thermal. Fuse coupling f : fuse f : fuse A.C. 3 phase A.C. 3 phase f ZNR3 f ZNR3 f Protected Equipment Protected f Equipment ZNR4 Thermal coupling Thermal. Fuse f : fuse f : fuse Across the