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PDB Series
ST Series Single-phase Power Controller

The ST Series uses a fully digital design with a small size and easy operation. To control and regulate voltage, currency and power rate, the product is mainly used in sintering furnace, roller conveyor furnace, tempering furnace, fiber furnace, mesh belt furnace, drying oven and other electric heating fields.

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Key features

  • ● Light weight design, small size and light weight
  • ● Support true RMS, average value control selection
  • ● It has three operation modes: phase shift, power regulation and fixed cycle, and power regulation and variable cycle.
  • ● With constant α, U, I, P and other control modes
  • ● OLED Chinese/English LCD display
  • ● It has the functions of running time accumulation display and load resistance detection
  • ● Standard modbus RTU communication. Optional Profibus-DP, PROFINET communication gateway

The main parameters

Model specification:

Input Main circuit power supply: AC230V、400V, 50/60Hz Control power supply: AC110~240V, 15W, 50/60Hz
Output Rated voltage: 0 ~ 98% of the main circuit power supply voltage (phase shift control) Rated current: 25~450A
Control characteristic Operation mode: phase shift trigger, power regulation and fixed period, power regulation and variable period Control mode: α、U、I、P
Load property: resistive load, inductive load  
Performance index Control accuracy: 1% Stability: ≤0.2%
Interface description Analog input: 1 way DC 4 ~ 20mA, 1 way DC0 ~ 5V / 0 ~ 10V Switch input: 1NO operation allowed (passive)
Switch output: 1NO fault state output (passive) Communication: Standard RS485 communication interface, supporting Modbus RTU communication;

Profibus-DP and Profinet communication gateway can be selected;
Protection functions: abnormal power supply protection, overcurrent protection and overheating protection
Note: the product continues to innovate and the performance continues to improve. This parameter description is for reference only.