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SCR Power Control "C" Series  ― Single Phase 15 through 70 Amp (2-Leg - Zero Cross)

 

The "C" Series SCR Power Controls are two-leg zero cross SCR power controllers that linearly control, proportional to the command signal, the power applied to a 3 phase electrical load.
The controller consists of a master and slave assembly. Each assembly consists of a heat sink and an SCR module. The master assembly contains the control circuit card which controls the on-off cycles for both assemblies.

Design Features
Zero Cross Units
 Electrically Isolated Heat Sink
 Conservative Thermal Design
 Voltage Squared Linearity
 Transient Voltage Protection
 Multi-turn Zero & Span Adjustments
 UL, cUL , Ce Compliant
 Ideal for: Electric Ovens, Furnaces and Kilns, Environmental Chambers; Extruders

Specifications
Command Signals: 4-20mA; 0-5VDC; 0-10VDC; potentiometer
Control Mode: Distributive Zero Cross
Load Current: 15, 25, 40 or 70 Amps
Line Voltage: 208, 240, 277, 480, or 575 VAC; +10% to 20% 50/60 Hz
Zero and Span: Factory pre-set. User adjustable over a range of 20% of span.
Transient  Voltage and  dv/dt: 500 volts/microsecond minimum. Uses a dv/dt snubber and a metal oxide varistor (MOV).
Control Range: 0 to 100% of line voltage		 Linearity: Average load voltage is linear within 1% of the command signal.
temperature
Operating: +32 to 122°F (0 to +50°C)
Storage: 14 to +158°F (-10 to +70°C)
Cooling: Convection
Mounting: Panel mount with heat sink fins vertical
dimensions
10 to 40 Amp units: each assembly 9.215"H×6"W×3.1"D
70 Amp units: each assembly 17.25"H×10" W×5" D

Fusing: Not included; Class T fuses are recommended
 
Common Configurations
(240 VAC; 3-Phase; 2-leg; zero cross firing; 4-20 mA input)
Load
 Current		 Part Number
Zero Cross
15 Amp SRT01101
25 Amp SRT01102
40 Amp SRT01103
70 Amp SRT01104

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

Multi-Tap Transformer Input: 120/240V, 400V, 480V or 575V
Output: 24V
Part Number: SRS99002

 

How To Order