Gold Member Since 2015
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Beijing Tengcontrol Technology Co., Ltd.

RTU, AC Sampling RTU, Micro RTU manufacturer / supplier in China, offering Electrical Automation AC Sampling RTU (STC-201), Tengcon PLC (T-960), Stc-1 (8AI 8DI 8DO) Modbus RTU Remote I/O Module and so on.

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Supplier Homepage Product Power Monitoring RTU Electrical Automation AC Sampling RTU (STC-201)

Electrical Automation AC Sampling RTU (STC-201)

FOB Price: US $118 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $118/ Piece
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Production Capacity: 10000 PCS/Year
Transport Package: Cartons Packed, Inner Box, Outer Export Carton
Payment Terms: L/C, T/T, D/P, Paypal, Money Gram, Western Union

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Basic Info
  • Model NO.: STC-201
  • Input Power Supply: AC 85-265V or DC 9-36V
  • Trademark: TENGCONTROL
  • Mount: Standard Rail or Bolts
  • Three Phase Current Module: Voltage,Current,Power,Frequency etc
  • Origin: Beijing China
Product Description


 3Phase Measure voltage current, active power, reactive power, power factor ,frequency and etc .

 3 One Form C Relay output

 6 photo-coupler isolated digit input with SOE and Counter

 2 analog input (0~5v or 0~20mA )

 1 isolated RS485 or RS232( 3 wire) ,1 isolated RS485


 harmonic calculation

Analog input

2 Channel Analog Input

0~5v or 0~20mA (use jumper to select)

Input resistance 0~5v 170kΩ  0~20mA  250Ω

12bit  A/D

0.2% FS ± 2digit 

                                                       AC input

3-Meter or 2-Meter

3 PT& CT or 2 PT & CT

Voltage 400V or 120V

Current 5A or 1A

Measurements:Voltage,current,active power, reactive Power of each phase, 3 Phase Power, 
3 Phase reactive Power, Power Factor, Frequency and etc..

Voltage 0.5% FS ± 2 digit

Current 0.5% FS ± 1 digit

Reactive Power  2.0% FS ± 3 digit

Frequency  ±0.01Hz± 1 digit

Frequency 40~65Hz

                                                            Digit Input

6 Channel Digit Input

Photo-coupler Isolated

Dry contacts 

Commons: all Negative

DC 12v~48V Input Voltage 

20kΩInput resistance

SOE with 1ms resolving

                                                     Relay Output

Channel Relay Output

One Form C  (SPDT)

250V/3A AC Contact Capacity

Relay Contacts Directly connect to IO terminals


1 RS485 or RS232( 3 wire) ,1 RS485


Max baud rate 38400bps

Address Setting:  DIP SW 1~31

                                                    Operation Condition

Operating  temperature:

-20°C~ 70°C

Storage  temperature:


Operating humidity:

<85% RH(20±5°C)


86~108Kpa No corrosive gas or heavy dust




M3 screw terminals 


Surface or DIN rail


125×110×62.5 mm

Power Supply:

AC 85~265V 40HZ~65HZ OR DC 24 v 

Power Consumption:

< 3W

Ingress Protection 


Beijing Tengcontrol Technology Limited Company
Rely on the computing hardware, software and network technique, Tengcon Technology devoted to manufacture industrial automation core products and systems. More than 30 per cent staffs are in Research & Development, so we gets strong ability on product R&D. Tengcon Technology has deep and wide experience on various signal acquisition, especially on electric signal acquisition, so that, our products are very robust on anti-interference and lightning protection.
Tengcon Technology advanced a Complete Distributed Network control system, in that the control system is constructed via absolutely new theory. It can be applied to construct the SCADA (Supervisory Control and Data Acquisition), PLC (Programmable Controller) and DCS (Distributed Control System).
We have manufactured more than 100 thousands products in 10 years, and all are used in various industrial plants and agricultural farms. With customer's continuous testing and our technology improving, Tengcon Technology product are widely accepted by various users for its excellent network communication, architecture, anti-interference ability and wide temperature adaptation.
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