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11 8 VAV-PRC011M-EN
DDC Controls
Electric Heater Silicon-Controlled Rectifier (SCR)
Specifications
Microprocessor based burst-fire controller / SSR
Low-voltage control
Output status indicator
•0-100% Control Range
Synchronized triggering output (P3)
20 AC Cycles Base Period
Coupled with the averaging temperature sensing matrix and UC210 or
UC400 controls, allows use of energy efficient dual max algorithm.
Input Specifications DC Control
Supply Voltage Range (VDC) (P1) 8-28
Input Current Range [mA] 20-30
Nominal Input Impedance [Ohms] 30K
Control Voltage
(a)
[VDC][P4]
(a) Control voltage < 0.2 Vdc guarantees heat is turned off.
0-10
Nominal Input Impedance [ohms][P4] 20K
Output Status Functions LED
Initial Logic Supply On Flash Once
Load Voltage Missing / Load Open (W/ PLV = 0V) Flash Once Intermittently
Load Voltage Missing / Load Open (W/ PLV > 0V) Flash Twice Intermittently
General Specifications Parameters
Dielectric Strength, Input/Output/Base (50/60Hz) 4000 Vrms
Minimum Insulation Resistance (@ 500 V DC) 10
9
Ohm
Maximum Capacitance, Input/Output 10 pF
Ambient Operating Temperature Range -20 to 80°C
Ambient Storage Temperature Range -40 to 125 °C
Encapsulation Thermally conductive Epoxy
Input connector Header Connector 3.5mm
Output Terminals Screws and Saddle Clamps Furnished, Installed
Output Max Wire Size Output:2 x AWG 8 (3.8mm)
Output Screws Maximum Torque 20 in lbs (2.2 Nm)
Assembly Specifications
Weight (typical) 1.38 Lb (0.628 Kg.)
Heat Transfer Material Used Thermal Pad
Material Steel
Finish Nickel Plate
Torque Applied 20 in/lbs ± 10%.
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