TEMPCO Electric Heater Corporation
Temperature Control

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SCR Power Control "E" Series  ― Three Phase 60 through 1200 Amp (3-Leg Phase Angle Fire)

 

The "E" Series SCR Power Controls are three phase, six SCR, phase angle power controllers. 5 LEDS monitor line, command signal, 3-line current. They are ideal for: Electric Ovens, Furnaces and Kilns, Silicone Carbide, Transformer Coupled Loads

Design Features
 Hinged Cover for Easy Access to Components
 Back to Back SCR's
  Includes 3 Semiconductor I2T Fuses
  Line Voltage Compensation
 Diagnostic Indicators (Control Power, Command Signal, Blown Fuse)
 Fan Cooled on 90 Amp and higher units
 Transient Voltage Protection
 Voltage Squared Linearity
 Electrically Isolated Heat Sink
 Multi-turn Zero & Span Adjustments
 UL, cUL , Ce Compliant

Specifications
Command Signals: 4-20mA; 0-5VDC; 0-10VDC; potentiometer
Control Mode: 3-Leg---Phase Angle Fire
Load Current: 60, 90, 120, 180, 225,  350, 500, 650, 800, 1000 or 1200 Amps
Line Voltage: 120, 208, 240, 380, 415, 480, or 575VAC;
+10% to 20% 50/60 Hz
Zero and Span: Factory pre-set. User adjustable over a range of 25% of span.
Transient Voltage and dv/dt: 200 volts/microsecond minimum. Uses a dv/dt snubber and a metal oxide varistor. (MOV)
Control Range: 0 to 98% of line voltage
Linearity: Average load voltage is linear within 2% of the command signal.
Options Available: See Ordering Box		 temperature
Operating: +32 to 131°F (0 to +55°C)
Storage: 14 to +158°F (-9 to +70°C)
Cooling: 50A convection; All others fan cooled
Mounting: Panel mount with heat sink fins vertical, or any position if fan cooled
 

dimensions
60 through 225 Amp units:
16.25"H×17.5"W×9.25"D
350 through 500 Amp units:
19"H×31"W×8.5"D
650 amp units:
24"H×34.75"W×11.25"D
800 through 1200 amp units:
27"H×38.75"W×11.75"D

weight
60 through 225 Amp units: 40 lbs
350 through 500 Amp units: 60 lbs
650 amp units: 126 lbs
800 through 1200 amp units: 231 lbs
 
Common Configurations
240 VAC, 3-Phase, phase angle firing,
4-20 mA control input, Includes
Over Temperature Thermostat ― N.O. for
controls 90 Amp and over.
Load
 Current		 Part Number
Zero Cross
60 Amp SRT03101
90 Amp SRT03102
120 Amp SRT03103
Common Configurations
40 VAC, 3-Phase, phase angle firing,
4-20 mA control input, Includes
Over Temperature Thermostat ― N.O. for
controls 90 Amp and over.
Load
 Current		 Part Number
Zero Cross
180 Amp SRT03104
225 Amp SRT03105
350 Amp SRT03106

Potentiometer Kit (ordered separately): 5KW potentiometer and knob Part Number: SRS99001

How To Order