Avatar Instruments
16587 Coastal Highway
PO Box 496
Lewes, DE 19958
Phone: 302-703-6865 • Fax: 302-703-6876
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The A3P is a proportional, infinitely variable power controller capable of delivering 0-97% of the applied line voltage to directly connected electric heaters. It will not control transformers or motors. This is accomplished by phase angle firing three SCR's (one per phase). Modular construction allows for simple and solderless field serviceability. There are four field replaceable items:
  • Printed circuit board
  • Fuses
  • SCR/ diode packages
  • MOV's (Metal Oxide Varistors)
A1P---A3P
Unit of Measure
1 2 

Item #

Item Name

Voltage Designations

Load

Output Voltage

Control Signal

CAD

A3P-48-60 N/A A3P-48-60 Series Three Phase SCR Power Controller N/A 480 VAC 50/60 Hz N/A 60 AMPS N/A 0 to 97% of input voltage N/A 4 to 20 mA at 6 volts DC N/A CAD Icon (for items table)
A3P-48-80 N/A A3P-48-80 Series Three Phase SCR Power Controller N/A 480 VAC 50/60 Hz N/A 80 AMPS N/A 0 to 97% of input voltage N/A 4 to 20 mA at 6 volts DC N/A CAD Icon (for items table)
A3P-48-100 N/A A3P-48-100 Series Three Phase SCR Power Controller N/A 480 VAC 50/60 Hz N/A 100 AMPS N/A 0 to 97% of input voltage N/A 4 to 20 mA at 6 volts DC N/A CAD Icon (for items table)
A3P-48-150 N/A A3P-48-150 Series Three Phase SCR Power Controller N/A 480 VAC 50/60 Hz N/A 150 AMPS N/A 0 to 97% of input voltage N/A 4 to 20 mA at 6 volts DC N/A CAD Icon (for items table)
A3P-48-200 N/A A3P-48-200 Series Three Phase SCR Power Controller N/A 480 VAC 50/60 Hz N/A 200 AMPS N/A 0 to 97% of input voltage N/A 4 to 20 mA at 6 volts DC N/A CAD Icon (for items table)
A3P-48-225 N/A A3P-48-225 Series Three Phase SCR Power Controller N/A 480 VAC 50/60 Hz N/A 225 AMPS N/A 0 to 97% of input voltage N/A 4 to 20 mA at 6 volts DC N/A CAD Icon (for items table)
A3P-48-250 N/A A3P-48-250 Series Three Phase SCR Power Controller N/A 480 VAC 50/60 Hz N/A 250 AMPS N/A 0 to 97% of input voltage N/A 4 to 20 mA at 6 volts DC N/A CAD Icon (for items table)
A3P-48-350 N/A A3P-48-350 Series Three Phase SCR Power Controller N/A 480 VAC 50/60 Hz N/A 350 AMPS N/A 0 to 97% of input voltage N/A 4 to 20 mA at 6 volts DC N/A CAD Icon (for items table)
A3P-48-500 N/A A3P-48-500 Series Three Phase SCR Power Controller N/A 480 VAC 50/60 Hz N/A 500 AMPS N/A 0 to 97% of input voltage N/A 4 to 20 mA at 6 volts DC N/A CAD Icon (for items table)
A3P-48-600 N/A A3P-48-600 Series Three Phase SCR Power Controller N/A 480 VAC 50/60 Hz N/A 600 AMPS N/A 0 to 97% of input voltage N/A 4 to 20 mA at 6 volts DC N/A CAD Icon (for items table)
A3P-60-30 N/A A3P-60-30 Series Three Phase SCR Power Controller N/A 575 to 600 VAC 50/60 Hz N/A 30 AMPS N/A 0 to 97% of input voltage N/A 4 to 20 mA at 6 volts DC N/A CAD Icon (for items table)
A3P-60-40 N/A A3P-60-40 Series Three Phase SCR Power Controller N/A 575 to 600 VAC 50/60 Hz N/A 40 AMPS N/A 0 to 97% of input voltage N/A 4 to 20 mA at 6 volts DC N/A CAD Icon (for items table)
A3P-60-60 N/A A3P-60-60 Series Three Phase SCR Power Controller N/A 575 to 600 VAC 50/60 Hz N/A 60 AMPS N/A 0 to 97% of input voltage N/A 4 to 20 mA at 6 volts DC N/A CAD Icon (for items table)
A3P-60-80 N/A A3P-60-80 Series Three Phase SCR Power Controller N/A 575 to 600 VAC 50/60 Hz N/A 80 AMPS N/A 0 to 97% of input voltage N/A 4 to 20 mA at 6 volts DC N/A CAD Icon (for items table)
A3P-60-100 N/A A3P-60-100 Series Three Phase SCR Power Controller N/A 575 to 600 VAC 50/60 Hz N/A 100 AMPS N/A 0 to 97% of input voltage N/A 4 to 20 mA at 6 volts DC N/A CAD Icon (for items table)
A3P-60-150 N/A A3P-60-150 Series Three Phase SCR Power Controller N/A 575 to 600 VAC 50/60 Hz N/A 150 AMPS N/A 0 to 97% of input voltage N/A 4 to 20 mA at 6 volts DC N/A CAD Icon (for items table)
A3P-60-200 N/A A3P-60-200 Series Three Phase SCR Power Controller N/A 575 to 600 VAC 50/60 Hz N/A 200 AMPS N/A 0 to 97% of input voltage N/A 4 to 20 mA at 6 volts DC N/A CAD Icon (for items table)
A3P-60-225 N/A A3P-60-225 Series Three Phase SCR Power Controller N/A 575 to 600 VAC 50/60 Hz N/A 225 AMPS N/A 0 to 97% of input voltage N/A 4 to 20 mA at 6 volts DC N/A CAD Icon (for items table)
A3P-60-250 N/A A3P-60-250 Series Three Phase SCR Power Controller N/A 575 to 600 VAC 50/60 Hz N/A 250 AMPS N/A 0 to 97% of input voltage N/A 4 to 20 mA at 6 volts DC N/A CAD Icon (for items table)
A3P-60-350 N/A A3P-60-350 Series Three Phase SCR Power Controller N/A 575 to 600 VAC 50/60 Hz N/A 350 AMPS N/A 0 to 97% of input voltage N/A 4 to 20 mA at 6 volts DC N/A CAD Icon (for items table)
A3P-60-500 N/A A3P-60-500 Series Three Phase SCR Power Controller N/A 575 to 600 VAC 50/60 Hz N/A 500 AMPS N/A 0 to 97% of input voltage N/A 4 to 20 mA at 6 volts DC N/A CAD Icon (for items table)
A3P-60-600 N/A A3P-60-600 Series Three Phase SCR Power Controller N/A 575 to 600 VAC 50/60 Hz N/A 600 AMPS N/A 0 to 97% of input voltage N/A 4 to 20 mA at 6 volts DC N/A CAD Icon (for items table)
A3P-48-150-C N/A A3P-48-150-C Series Three Phase SCR Power Controller N/A 480 VAC 50/60 Hz N/A 150 AMPS N/A 0 to 97% of input voltage N/A 4 to 20 mA at 6 volts DC N/A CAD Icon (for items table)
A3P-24-150-C N/A A3P-24-150-C Series Three Phase SCR Power Controller N/A 208 to 240 VAC 50/60 Hz N/A 150 AMPS N/A 0 to 97% of input voltage N/A 4 to 20 mA at 6 volts DC N/A CAD Icon (for items table)
Unit of Measure
1 2