PTS Low-Voltage (LV) Manual Break Switch & Isolators


The most advance and powerful microprocessor PTS-WST-9 series dual power ATS controller is an intelligent dual-power switchover module with configurable function, automatic measurement, LCD display, and digital communication. It combines digitization, intelligence, and networking together. Measurement and control process can be conducted automatically, which reduces artificial operating mistakes, so that it is the ideal option for dual-power switchover products.

PTS-WST-9 series dual power ATS controller is composed by the powerful microprocessor in the core, which can precisely measure the voltages (2-way 3-phase) and make accurate decision for abnormal voltages (overvoltage, undervoltage, over frequency, underfrequency, phase loss, reverse phase sequence), and putout power-off control digital signal. It has compact structure, advanced circuits, simple wiring, and high reliability, and can be widely used in electrical automatic control system of electric power, telecommunications, petroleum, coal, metallurgy, railways, municipal administration, intelligent building and etc.

  • System type can be set as Mains-Power Generation, Power Generation-Mains, Mains-Mains, Power Generation-Power Generation;
  • 4.3-inch large LCD Display of single color, 240x128 pixel with white backlight, multiple language display (Simplified Chinese, English, and Other), and touch-button operation;
  • Collect and display 2-way 3-phase voltages, frequency, and phase sequence;
  • Collect and display loading active power, reactive power, apparent power, power factor and current;
  • Independent over current warning and trip alarm functions for S1 and S2;
  • NEL trip function;
  • isplay of accumulated active power, accumulated reactive power, accumulated close times, accumulated automatic transfer times, and mains outage transfer times for S1 and S2;
  • Display of continuous power supply time, accumulated power supply time for S1 and S2, accumulated automatic transfer running time;
  • For energy-accumulated switch, it has function of breaker close when switch PF (close is well prepared) signal is active;
  • Functions of over voltage, under voltage, over frequency, under frequency, over current, loss of phase, and inverse phase sequence;
  • Auto/Manual status switchover is set, and breaker close/open can be controlled manually in manual mode;
  • All parameters can be configured on site, and it applies password verification, which can prevent non-professional mistake operation;
  • Commissioning can be done on site manually to do start/stop operation of genset;
  • Function of breaker re-close function;
  • Close output can be pulse or continuous output;
  • 2-way N wire isolated design;
  • Real time clock display, event log function with recording cyclical 200 data;
  • Scheduled detecting start/scheduled not start function for genset; it can be set to run for once, each month, or each week, and running with loading or not can also be set;
  • It can control two gensets, realizing cyclical running, master running, and balanced time running;
  • Wide range of DC power supply, which can bear max. 80V DC input transiently;
  • AC power supply can be phase voltage (L, N), or wire voltage (L, L) with supply range: (90~576)V;
  • Large space between AC input wire terminals, which can bear 625V voltage input;
  • Loading end is live or not can be detected;
  • 2 ways of RS485 isolated communication ports are set, which has remote control, remote communication, remote measurement, and remote regulation functions by ModBus-RTU communication protocol; it can also remote control genset start, stop, breaker close and open functions; munication, remote measurement, and remote regulation functions by ModBus-RTU communication protocol; it can also remote control genset start, stop, breaker close and open functions;
  • Suitable for multiple AC system types (3-phase 4-line, 3-phase 3-line, 1-phase 2-line, 2-phase 3-line methods);
  • Modular structure design, flame retarding ABS shell, pluggable connecting terminal, and embedded installation method, with compact structure and convenient installation.

Performance Parameters
Items Description
Operating Voltage

  1. DC8.0V~35.0V continuous power supply;
  2. AC power supply, voltage range: AC(90~576)V;
Power Consumption 6W(Standby mode:≤2W)
AC Voltage Input AC system
3P4W (L-L) (80~625)V
3P3W (L-L) (80~625)V
1P2W (L-N) (50~360)V
2P3W (A-B) (80~625)V
Rated Frequency 50/60Hz

Programmable Output 1~6 Relay Capacity 16A 250V AC, volts free output;
Programmable Output 7~12 Relay Capacity 8A AC250V AC, volts free output;
Digital Input of S1/S2 Close Ground connected is active (B-);
Programmable Input Port 1~8 Ground connected is active (B-);
Programmable Input Port 9 DC (9~36)V, voltage input;
Communication Method 1. 2 ways of isolated RS485 interface, MODBUS Protocol; 2. D-type USB port;

Case Dimensions 260mmx180mmx54mm
Panel Cutout 242mmx161mm
Working Conditions Temperature: (-25~+70)°C;Relative Humidity: (20~93)%RH
Storage Condition Temperature: (-30~+80)°C
Protection Level IP65: when waterproof gasket is inserted between the controller and the panel;
Insulation Strength Apply AC1.5kV voltage between high voltage terminal and low voltage terminal, and the leakage current shall be not more than 3mA within 1min;Weight 1.2kg

Discover the many ways we can help.