Avatar Instruments
16587 Coastal Highway
PO Box 496
Lewes, DE 19958
Phone: 302-703-6865 • Fax: 302-703-6876
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The B2P (single phase) and B3P (3-phase) series of controls are a proportional, infinitely variable power controller capable of delivering 0-97% of the applied line voltage to inductive loads. The B2P is specifically designed to drive transformers, but will drive resistive loads too. This is accomplished by phase angle firing a pair of inversely connected SCR's. Modular construction allows for simple and solderless field serviceability. There are four field replaceable items:
  • Printed circuit board
  • Fuse
  • Dual SCR package
  • MOV (Metal Oxide Varistors)
A1P--A1P--B2P-150-250-Amp
Unit of Measure
1 2 

Item #

Item Name

Voltage Designations

Load

Output Voltage

Control Signal

CAD

B2P-38-200 N/A B2P-38-200 Series Single Phase High Power SCR Transformer Controllers N/A 380 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, 300 Ohms N/A CAD Icon (for items table)
B2P-38-225 N/A B2P-38-225 Series Single Phase High Power SCR Transformer Controllers N/A 380 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, 300 Ohms N/A CAD Icon (for items table)
B2P-38-250 N/A B2P-38-250 Series Single Phase High Power SCR Transformer Controllers N/A 380 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, 300 Ohms N/A CAD Icon (for items table)
B2P-38-350 N/A B2P-38-350 Series Single Phase High Power SCR Transformer Controllers N/A 380 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, 300 Ohms N/A CAD Icon (for items table)
B2P-38-600 N/A B2P-38-600 Series Single Phase High Power SCR Transformer Controllers N/A 380 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, 300 Ohms N/A CAD Icon (for items table)
B2P-48-40 N/A B2P-48-40 Series Single Phase High Power SCR Transformer Controllers N/A 480 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, 300 Ohms N/A CAD Icon (for items table)
B2P-48-60 N/A B2P-48-60 Series Single Phase High Power SCR Transformer Controllers 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, 300 Ohms N/A CAD Icon (for items table)
B2P-48-80 N/A B2P-48-80 Series Single Phase High Power SCR Transformer Controllers 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, 300 Ohms N/A CAD Icon (for items table)
B2P-48-100 N/A B2P-48-100 Series Single Phase High Power SCR Transformer Controllers 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, 300 Ohms N/A CAD Icon (for items table)
B2P-48-150 N/A B2P-48-150 Series Single Phase High Power SCR Transformer Controllers 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, 300 Ohms N/A CAD Icon (for items table)
B2P-48-200 N/A B2P-48-200 Series Single Phase High Power SCR Transformer Controllers 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, 300 Ohms N/A CAD Icon (for items table)
B2P-48-225 N/A B2P-48-225 Series Single Phase High Power SCR Transformer Controllers 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, 300 Ohms N/A CAD Icon (for items table)
B2P-48-250 N/A B2P-48-250 Series Single Phase High Power SCR Transformer Controllers 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, 300 Ohms N/A CAD Icon (for items table)
B2P-48-350 N/A B2P-48-350 Series Single Phase High Power SCR Transformer Controllers 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, 300 Ohms N/A CAD Icon (for items table)
B2P-48-600 N/A B2P-48-600 Series Single Phase High Power SCR Transformer Controllers 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, 300 Ohms N/A CAD Icon (for items table)
Unit of Measure
1 2