Honeywell offers a complete line of thyristors capable of switching loads from 30 amperes (amps) to 2,700 amps. Sometimes referred to as SCR (silicon-controlled rectifier) power packs, this comprehensive line is well suited to control the power supplied to electric heating elements.
What Is It?
Honeywell’s thyristors are suitable for switching electrical loads to provide power to ovens, dryers, furnaces and other electrically heated industrial devices. Capable of switching a variety of single- to three-phase loads, these thyristors are compatible with the UDC family of controllers such as the UDC1200, UDC2500, UDC3200 and the UDC3500. They can also be used with Honeywell’s modular control solutions such as the HC900 series of controllers using RS485 communications or the SSR input, the 4 to 20mA input or the 0 to 10Vdc input.
Honeywell’s thyristors can handle loads from 25 amps to 2,700 amps and up to 690 volts AC.
How Does It Work?
Honeywell’s thyristor series uses state-of-the-art technology to precisely regulate the power supplied to electric heating elements. Available for one, two or three-phase loads, these devices can be connected for delta or star wiring. The thyristors are suitable for driving resistive loads, transformer and inductive loads, quartz lamps, silicon carbide elements and infrared loads.
To extend the life of the heating element, the thyristor line is available with zero crossover firing, burst firing and delayed triggering. Internal fuses, heat sinks and cooling fans further ensure the thyristors’ long life.
What Problems Does It Solve?
Honeywell’s thyristor control units have been designed for industrial use and address nearly all heating applications. It is ideal for applications involving electrically heated equipment such as those in electric furnaces, automotive painting booths, textile machinery drying ovens, petrochemicals and semiconductor machines.
