Controls, Panels & Sensors

Liberty Electric Sales controls, panels and sensors are engineered to be state of the art and sized to virtually any application or specification - custom power control panels are available in many NEMA-type enclosures, for single- or three-phase load requirements, and a variety of voltages, contactors, and SCR power controllers.

SCR Control Panels integrate temperature controllers, over temperature controllers, customer inputs, and SCR power control into a complete package. Liberty offers both standard package sizes and custom units for units for unique applications.

Liberty can provide complete control solutions for heat trace applications; providing temperature control, monitoring, and power management in one package. The modular design of the control panel and components allows selection of only those features needed for a specific heat trace installation, minimizing cost and simplifying system configuration. The systems employ microprocessor-based controls and come pre-wired and assembled.


Temperature Controls


From single loop with one output to multiple-loop with 9 outputs and microprocessor-based PID control, Liberty offers precisely the required level of simplicity or sophistication. Advanced models feature heating and/or cooling control modes, graphical / text LCD display, multiple alarm protection, programmable event outputs, customizable setup, enhanced profiling with data logging and graphical trend recording. Remote access is accomplished via Modbus RS-485 or Modbus TCP Ethernet.

Temperature Controls

Snow Melting Controls


These controls are designed to detect snow or ice and automatically activate contactors for snow melting cables or mats. The system will remain activated until conditions at the sensors do not require snow melting.


Safety Limit Controllers


These high/low limit controllers are designed to provide reliable protection of processes, equipment, and personnel.

Control and Load Switches are flexible, adaptable, time- and space-saving devices. Our switches are available as front door, base- or DIN Rail-mounting versions. You can use these switches as manual motor controllers and motor disconnects.