S.C.R. Power Controls Convectronics Manufactures First Class Heaters, Temperature Sensors and Precise Controls, Assists with Design and Application Needs.


High Temperature Air Heater Information
Heater Style Application and Selection Guide
Single Pass Quartz Tube Heaters
Metal Shell Air Heaters
Triple Pass Housings/Elements
Triple Pass Flanged Housings/Elements
Triple Pass Heaters: Three Element Housing
Open Coil Convection Heaters
In-line Pipe Heaters
High Volume In-line Pipe Heaters
Power Control Module
S.C.R. Power Controls
Contactors and Controllers

Flameless Electric Air Heaters
S.C.R. Power Controls

These controls provide phase angle proportional control of our fast responding heaters. They are available in single and three-phase 240-volt configurations. Each unit comes complete with I2T Rectifier Fuses and a Voltage Limiting Adjustment.

The controls can be operated manually with the addition of the optional Manual Voltage Control, which allows one to vary voltage from zero to full voltage.

The S.C.R power control can be used with a 4-20mA temperature controller for closed loop operation.

The S.C.R power controls are also available in NEMA 1 Enclosures upon request.

Rating Part Number Dimensions Mounting
60 amp, 240V
006-10269 10” x 9.3” x 5” 8” x 8”
30 amp, 240V
006-10270 10” x 10” x 3.5” 8” x 8”
60 amp, 240V
006-10271 12” x 12” x 5.7” 10” x 10.8”
Manual Voltage
006-10272 3-1/8” x 1-1/2”
with 2 Ft. leads
The single-phase, 60 amp and the three-phase 30 amp S.C.R.’s could be used with heater style 003-10268. The three-phase 60 amp S.C.R. could be used with the heater style 007-10197.

For closed loop control we offer a precision PID temperature controller with self-tuning. This unit is in a 1/16th DIN size set up with a 4-20mA output, ‘K’ thermocouple input and an alarm. The part number is 006-10273.

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Convectronics, Inc.   •   Ward Hill Industrial Park West, 111 Neck Road Haverhill, MA 01835 USA   •   978-374-7714
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