Libratherm offers Single phase power regulator for Heating control of resistive or inductive loads. This regulator accepts the user selectable control signal of 0-5V, 0-10V and 4-20mA or through potentiometer, and hence, can be easily interfaced with DDC, PID, PLC or HMI. The output voltage can be varied proportional to the input signal. The phase angle firing control technique ensures smooth and gradual step less voltage control across the heater load. Facility is also provided to adjust the soft rise or fall in voltage across the load using on card Ramp UP and Ramp Down potentiometers. The maximum and minimum voltage output can also be adjusted. These modules can be easily mounted on the standard 35 mm. DIN rail or on the base plate using 4 screws. For three phase load in star with neutral configurations, 3 independent modules can be used with common control signal.