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Canada
& USA Toll Free
1 800 279-9912
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SCR Power Controls
from Heaters Controls And Sensors |
 SCR
Power Controls are zero-cross fired or phase angled
fired, and ideal for the control of pure resistant loads
that can accommodate rapid, full power, ON-OFF cycling.
Zero-crossed fired SCR's do not create RFI (radio frequency
interference) and will not adversely affect sensitive
electronic equipment, like logic controllers, computers,
other SCR controllers) located in the same building
or area.
SCR Power Controls are protected from line voltage transients,
making them more reliable in a variety of applications.
Aero-cross fired SCR's when coupled with PID or Time
proportioning controllers operate in a series of full
ON-OFF cycles known as time proportioning burst firing.
The time proportional control accepts the control output
signal and converts it into a time firing. The time
proportional signal determining the amount of ON time
and OFF time per duty cycle. The continuous, high repetitious
rate of full ON and full OFF cycles produces a smooth
power output to the load (heater) and stabilizes temperature.
SCR Power Controls differs from other switches in fast
action. For example, while a contactor may cycle 2 times
per minute, a SCR may cycle approximately once per second.
The fast SCR cycle time results in a final temperature
much closer to the desired set point and reduces energy
costs. SCR Power Controls modulates small increments
of power to the load, unlike traditional mechanical
control, and eliminates the overshoot and undershoot
associated with a load controlled by a contactor.
SCR
Power Controls Features:
•
2 year limited warranty
• 15 to 700 Amps Output Current
• 48 to 600 volts Single or Three Phase
• Zero Cross fired thermally and Surged Protected
• Used in Controlling Process Heaters, Duct
Heaters, Ovens, Dryers, Resistive Loads
• Field Selectable Inputs 0 to 5 Volts DC,
0 to 10 Volts DC
• Pulsed Voltage, 4-20mAmps
Ordering
Information:
Voltage: 48 to 600 volts
Phase: single (1) or three (3)
Current: 15 to 700 Amps
Control Input: 1 = 0 to 5 Volts DC, 2 = 0 to
10 volts DC, 3 = 4 to 20 mAmps, 4 = 0 to 135 Ohms
Controlled Lines: three phase 2 or 3 lines
Control Output: zero cross fired = Z P = phase
angle fired
For
Quick Delivery
From Stock Call
CANADA
& USA TOLL FREE: 1 - 800 - 279-9912
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