|Payment Terms:||L/C,D/P,T/T,Western Union|
|Supply Ability:||500 Unit/Units per Month|
|Auxiliary Power Supply:||AC220V±15%, 4VA, etc.|
|Rated voltage input:||0 ~ 60V, 0 ~ 120V, 0 ~ 300V, etc.|
|Work ambient temperature:||-5℃ ~ +45℃|
|Output DC current:||0-20mA, 4-20mA, etc.|
|Output DC voltage:||0-1V, 0-5V, 0-10V, etc.|
|Packaging Detail:||Poly bag with box packing,one in a box, boxes in cartons for AC Voltage Transducer / Voltage Transmitter NKB-21S. But if you have special requirements we can make adjustment according to customers' order requirements.|
NKB-21S series AC voltage transducer is mainly adopted to convert the real time operation voltage of power grid to relevant analog signals in transformer substations and power stations, making it readable by RTU and other signal sampling devices.
Rated Input Voltage Range
0 ~ 60V, 0 ~ 120V, 0 ~ 300V, etc.(optional)
DC Output Range
0-20mA, 4-20mA, 0-1V, 0-5V, 0-10V, etc. (optional)
Auxiliary Power Supply
AC220V±15%, 4VA, etc.
Input Power Consumption
I <0.5VA; U < 0.5VA (* if self-powered, add 1VA)
Influence of Temp.
when it’s within ruled operation temp. range, ±0.2% / ±0.5% allowable variation per ±20℃
-5℃ ~ +45℃
-20℃ ~ +75℃
35mm DIN Rail
Auxiliary Power Supply
1 way input
0 ~ 60V
0 ~ 1mA
0 ~ 1V
2 way inputs
0 ~ 120V
0 ~ 5mA
0 ~ 5V
3 way inputs
0 ~ 250V
0 ~ 10mA
0 ~ 10V
0 ~ 300V
0 ~ 20mA
1 ~ 5V
4 ~ 20mA
Rules of Name
Package details: Poly bag with box packing,one in a box, boxes in cartons for AC Voltage Transducer / Voltage Transmitter. But if you have special requirements we can make adjustment according to customers' order requirements.
Delivery details: 7-15 working days for AC Voltage Transducer / Voltage Transmitter.
Welcome to visit our place: 86 kilometers Alongside the National Highway 312, Suzhou Industrial Park, Suzhou, Jiangsu, P.R.C;
Prompt response: Any inquiries will be replied within 24 hours;
1). All products will be strictly Quality Checked in house before packing;
2). All products will be well packed before shipping.
3). All products have warranty.
Standard packaging, and you can also tell us your own requirements on packaging;
Shipping: We have strong cooperation with DHL,Fedex,UPS and so on. And you can also choose your own shipping forwarder.
Kejia Automation Co., Ltd. is located in the Suzhou Industrial Park which is famous for its beautiful scenery, outstanding people and smart land. Kejia, a high-and new-tech company, is dedicated to development, manufacture, marketing and service of electric products. The rapidly-developed regional economy and friendly investment environment ensure Kejia’s sustainable developments and continuous innovations. Kejia is an economically independent company within the Suzhou Electric Group. It is professional in producing SPD and automatic electric products, with an annual output of 500,000 units.
Main products of Kejia:
Power protective device, Signal protective device;
Electrical quantity transmitter, Temperature transmitter;
Digital display instrument, Automatic measurement and control system.
Principles in quality:
Ensure the quality of products,
Strengthen the satisfaction of customers,
Create a win-win-win situation.
professional staff, considerate and satisfying service
Our principle is “consider and concern for clients
“We are specialized in the field of lightning protection, with a pro R&D team, developing the market-oriented items and providing technical support at any time”
High product quality, 99.9% customer satisfaction
“Customers’ high satisfaction with our product and service is fully indicated by the quite low customer turnover and seasonal customer satisfaction survey. We deeply believe your each cooperation with us will impress you”
Most standard items could be delivered at the day order is confirmed
“96% of our standard items have inventory, convenient transportation and advanced shipping procedure ensure products to be delivered to you at its earliest”
All our products are developed and designed by our R&D team
“Our professional developing and manufacturing technologies ensure us to better meet clients’ unique requirements”
We manufacture what you need
“We pay full attention to clients’ demands, aiming to provide you the most useful and practical products”
One-stop provider for lightning protection solution
“As long as your telling us detailed requirements on protected system, we’ll help recommend suitable products, show you prospect image, guide your installation after purchasing”