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NKB-20S Molded-Case AC Current Transmitter
Molded - case AC Current Transmitter, Measuring AC Current
Product Features
  • AC Current Measurement for Single-Phase Two-Wire and Three-Phase Three-Wire Systems
  • Accurate Measurement of Distorted Waveforms
  • Multiple Selectable Output Signals with High Stability
  • Low Temperature Drift, High Impulse Voltage Resistance, and Galvanic Isolation
  • Optional Lightning Protection for Input/Output Terminals
NKB-20S Molded-Case AC Current Transmitter
Installation & Application(安装应用)

The NKB-20S series AC current transmitters are widely used for real-time monitoring of electrical parameters in power grids, including substations and power plants. Mountable on 35mm DIN rails, they convert AC current into proportional analog DC outputs that can be received by conventional RTUs or other data acquisition devices, serving as front-end converters for automated telemetry systems.

Product Dimension Drawing

NKB-20S 塑壳型交流电流变送器(图1)

Product Installation Diagram

NKB-20S 塑壳型交流电流变送器(图2)


Technical Parameters(技术参数)
ParameterSpecificationParameterSpecification
ModelNKB-20SWithstand Voltage2KV
AccuracyOptional: ±0.2%, ±0.5%Housing MaterialFlame-Retardant ABS
Rated Current InputOptional: 0~1A, 0~5A, etc.Dimensions (W×H×D)55×75×120/110×75×120 (mm)
Output RangeOptional: 0~20mA, 4~20mA, 0~5V, 0~10V, 1~5V, etc.Weight0.4kg
Auxiliary Working Power SupplyAC220V±15%, 4VA, etc.Mounting Method35mm DIN Rail Mountable
Operating Frequency50±5HzOperating Temperature-5℃ ~ +45℃
Output Ripple<1% (Peak-to-Peak)Storage Temperature-20℃ ~ +75℃
Input Power ConsumptionCurrent<0.5VA, Voltage <0.5VA; *Add 1VA for self-power supplyRelative Humidity<80%
Temperature InfluenceWithin standard operating temperature range, for every ±20℃ change, allowable error variation: ±0.2%, ±0.5%Protection ClassIP20
*The product parameters are subject to the actual product manual.
Ordering and Model Selection(订货选型)

*Please send the inquiry email containing specific product requirements (such as model, quantity, technical parameters, etc.) to the designated email address  salina@kejia.com.    


(请将包含具体产品需求(如型号、数量、技术参数等)的询价邮件发送至指定邮箱 salina@kejia.com)


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