Thyristor Power Controller

Libratherm’s POW-1-PA-XX is a robust, single-phase heater power regulator engineered for precise control of resistive or inductive heating loads operating on 110/230VAC. Designed for seamless integration with DDC, PID, and PLC systems, it accepts versatile control signals (0–5V, 0–10V, or 4–20mA) and also supports manual operation via an external potentiometer. Its advanced phase-angle firing technique guarantees smooth, gradual, and step-less control across the load.

Key Features

  • Versatile Control Options:
    Choose between 4–20mA, 0–5V, or 0–10V DC control signals. Manual operation is also available with an external potentiometer.

  • Precision Regulation:
    The phase-angle firing control technique provides gradual voltage adjustment for a stable and controlled power output.

  • Robust and Reliable:
    With a built-in back-to-back SCR, the controller can handle single-phase loads from 20A to 40A.

  • Customizable Ramp Settings:
    On-card Ramp UP and Ramp Down settings allow for controlled soft-start and soft-stop voltage transitions.

  • Safety Features:
    Includes current limit and overload trip functionalities (available in the POW-1-PA-CL variant) with a user-accessible Trip RESET pushbutton.

  • Durable Design:
    Housed in a rugged, powder-coated metallic enclosure, ensuring reliability even in harsh industrial environments.

Specifications

  • Input Voltage: 110/230 VAC
  • Load Capacity: 20A to 40A single-phase
  • Control Signals: 0–5V, 0–10V, 4–20mA
  • Ramp Control: Adjustable Ramp UP and Ramp Down
  • Protection: Current limit and overload trip (POW-1-PA-CL versions)

Applications

  • AC Drive Control Panels
  • Distribution & Automation Panels
  • Custom Electric & Electronic Panels
  • Temperature Controllers
  • Injection Moulding Systems
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Why Choose POW-1-PA-XX?

  • Innovative Control: Enjoy seamless power control with precision engineering.
  • Flexible Integration: Easily interfaced with modern automation systems.
  • Durability & Safety: Designed to withstand industrial conditions with built-in protection features.
  • Proven Performance: Trusted by industry experts for reliable, high-performance control.