FEATURES

	Versions for 1, 2 or 3-phase loads
	Current rating from 80A to 1000A air cooled
	Operation without derating up to 50oC ambient
	Low cost 2-line control of 3-phase load
	Low radio frequency emissions
	Minimum waveform distortion
	Maximum power factor
	Simple installation, commissioning and maintenance
	Microprocessor controlled 315A units and above

GENERAL DESCRIPTION

This is a modern range of thyristor stacks, specifically designed for burst fire control of resistive loads in medium and high current heating applications for furnaces, ovens, dryers etc. Units up to 200A use a MOSFET driver circuit, and feature closely controlled zero-voltage switch on, and low crossover commutation noise. The standard input is a logic signal, but an optional 4-20mA driver module is available, which requires no auxiliary power. Above 200A an auxiliary powered driver card is used, capable of supplying high current low impedance drive pulses to the thyristors ensuring excellent di/dt capability and high noise immunity

Download datasheet (.pdf)