DC Exciters

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Controllers best suited for heat treat applications are listed below:

Model Phase Mode Voltage Current Highlights
1802 One  Phase Angle  120-575 Vac 10 - 30 Amps 60Hz halfwave DC output. 1802 accepts Vdc or potentiometer commands, 1805 accepts mA commands.  
1822 One Phase Angle 120-240 Vac 10 - 40 Amps Accepts Vdc or potentiometer commands. 120Hz fullwave DC output.
1825 One Phase Angle 120-240 Vac 10 - 40 Amps  Accepts mA commands. 120Hz fullwave DC output. 
3869 Three Phase Angle 120-600 Vac 300 - 400 Amps Accepts most commands. High current, three phase DC output.
FUSION Single Phase AC One Phase Angle or Zero Cross 24-600 Vac, 45-65 Hz
(Auto-Ranging)
50 - 1200 Amps 24 - 600 Vac. A microprocessor-based SCR controller operating both analog and digital interfaces. A phase angle or zero cross fired controller which linearly controls, with respect to the setpoint, the AC voltage, current, or true power applied to an electrical load. Control is achieved by means of a pair of inverse parallel SCRs.
FUSION Single Phase DC One Phase Angle or Zero Cross 24-600 Vac, 45-65 Hz
(Auto-Ranging)
45 - 1080 Amps 24 - 600 Vac. A microprocessor-based DC SCR controller operating both analog and digital interfaces. A phase angle fired controller which linearly controls, with respect to the setpoint, the DC voltage, current, or true power applied to an electrical load. Control is achieved by means of a half controlled SCR bridge.
FUSION Three Phase AC  Three Phase Angle or Zero Cross 24 - 600 Vac, 45 - 65 Hz
(Auto-Ranging)
50 - 1200 Amps 24 - 600 Vac. A microprocessor-based SCR controller operating both analog and digital interfaces. A phase angle or zero cross fired SCR controller which linearly controls, with respect to the setpoint, the AC voltage, current, or true power applied to a three phase electrical load. The 3 phase controller can be ordered in either 2 or 3 leg control with 2 leg being limited to zero cross firing. Control is achieved for 3 leg by three pairs of inverse parallel SCRs or in 2 leg by 2 pairs of inverse parallel SCRs.
FUSION Three Phase DC Three DC 24 - 600 Vac, 45 - 65 Hz
(Auto-Ranging)
60 - 1400 Amps Full Wave Rectified 24 - 600 Vac. A microprocessor-based DC SCR controller operating both analog and digital interfaces. A phase angle-fired controller which linearly controls, with respect to the setpoint, the DC voltage, current, or true power applied to an electrical load. Control is achieved by means of a six SCR bridge with freewheeling diode.
Compact FUSION Single Phase One Phase Angle, Zero Cross, Burst 24-600 Vac, 45-65 Hz
(Auto-Ranging)
10 - 160 Amps 24 - 600 Vac. A microprocessor-based SCR controller, operating with both analog and digital interfaces. Output is controlled linearly with respect to command signal and can be set to the average or RMS value of the voltage or current, as well as true instantaneous power or external feedback.
Compact FUSION Three Phase Three Phase Angle, Zero Cross, Burst 24-600 Vac, 45-65 Hz
(Auto-Ranging)
10 - 160 Amps 24 - 600 Vac. A microprocessor-based SCR controller operating both analog and digital interfaces. Can be ordered in either 2 or 3 leg control with 2 leg being limited to zero cross firing. Output is controlled linearly with respect to command signal and can be set to the average or RMS value of the voltage or current, as well as true instantaneous power or external feedback.

Learn more about firing modes here.

Learn more about load connections here.