LIT-R820_REV2-E03
1
R820 REV2 SERIES
SCR POWER CONTROLS
Product overview
The Viconics R820 series SCR power controls are designed for cost effective, precise
modulation of electric loads for most electric heating applications.
(Applicable
on resistive loads only
)
The R820 series consists of SCR’s power controls, c/w factory assembled heatsink for
surface or in-panel mounting.
Models available
Features
Feature
Benefit
⇒
Complete assembly with factory installed heat sink.
⇒
Reduced total installation cost
⇒
Designed for surface or panel mounting
⇒
Covers wider array of application with same
component.
⇒
UL Recognized
⇒
Easily integrated into complete assembly requiring
industry listings.
⇒
CSA approved for Canada and USA
⇒
Trouble free approval process
⇒
Status LED
⇒
Quick field troubleshooting.
⇒
High quality assembly with 2 year warranty
⇒
Reduced field service calls.
⇒
Full line of matching peripheral temperature
controllers
⇒
Simplified component sourcing and matching for
reliable operation
They are compatible with many industry standard signals. A typical application would be to control a modulating
electric duct heater with a 0 to 10 Vdc control signal from an analog room thermostat. The R820 power controller also
contain four dip switch to adjust to the following control signals:
•
0 to 10 Vdc control signal ( 2 to 10 Vdc control range )
•
4 to 20 mA control signal
•
0 to 135
Ω
control signal
Model No.
Voltage Range
Phase
Max Current
R820-211-REV2
24 - 240 Volts AC
1
10 Amp
R820-213-REV2
24 - 240 Volts AC
3
10 Amp
R820-321-REV2
24 - 347 Volts AC
1
25 Amp
R820-323-REV2
24 - 347 Volts AC
3
25 Amp
R820-341-REV2
24 - 347 Volts AC
1
45 Amp
R820-343-REV2
24 - 347 Volts AC
3
45 Amp
R820-421-REV2
24 - 480 Volts AC
1
25 Amp
R820-423-REV2
24 - 480 Volts AC
3
25 Amp
R820-441-REV2
24 - 480 Volts AC
1
45 Amp
R820-443-REV2
24 - 480 Volts AC
3
45 Amp
R820-471-REV2
24 - 480 Volts AC
1
75 Amp
R820-621-REV2
24 - 600 Volts AC
1
25 Amp
R820-623-REV2
24 - 600 Volts AC
3
25 Amp
R820-641-REV2
24 - 600 Volts AC
1
45 Amp
R820-643-REV2
24 - 600 Volts AC
3
45 Amp
R820-671-REV2
24 - 600 Volts AC
1
75 Amp
