• Microcontroller based Phase Angle Control (Proportional Controller) 0-100% Linear; burst fire control; soft start/soft stop; status monitoring; control input of either 4-20ma built-in vcc or 0-10vdc external vcc of 5 - 32 vdc required or external potentiometer, varying the control input linearly varies the ac output power from 25-530 vac. models of 25a, 50a, 90a thyristor based.
• A control input of 4mA or 0VDC corresponds to zero output power whereas a control input of 20 mA or 10VDC corresponds to full output power (0-100% Linear). 
• The phase angle controller varies the firing angle on the output SCRs proportionally to an analog control signal, effectively varying the power delivered to the output load.  
• It is frequency 50 Hz to 60 Hz. These Control relays can provide added flexibility and reliability to your application with all the known benefits provided by the use of solid state switching technology. Offering precise power control suitable for numerous Factory Automation applications our relay can reliably control resistive loads like heaters, lighting and slightly inductive loads. 
• The relay can also be used for soft turn-on of high-power incandescent lamps The analog series is ideal for temperature control, tungsten lamp dimming and universal motor control too.