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)
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Item #

Item Name

Voltage Designations

Load

Output Voltage

Control Signal

B3P-48-200 N/A B3P-48-200 Series Three Phase SCR Transformer 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
B3P-48-225 N/A B3P-48-225 Series Three Phase SCR Transformer 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
B3P-48-250 N/A B3P-48-250 Series Three Phase SCR Transformer 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
B3P-48-350 N/A B3P-48-350 Series Three Phase SCR Transformer 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
B3P-48-500 N/A B3P-48-500 Series Three Phase SCR Transformer 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
B3P-24-15 N/A B3P-24-15 Series Three Phase SCR Transformer Controller N/A 208 to 240 VAC 50/60 Hz N/A 15 AMPS N/A 0 to 97% of input voltage N/A 4 to 20 mA at 6 volts DC
B3P-48-15 N/A B3P-48-15 Series Three Phase SCR Transformer Controller N/A 480 VAC 50/60 Hz N/A 15 AMPS N/A 0 to 97% of input voltage N/A 4 to 20 mA at 6 volts DC
B3P-38-15 N/A B3P-38-15 Series Three Phase SCR Transformer Controller N/A 380 VAC 50/60 Hz N/A 15 AMPS N/A 0 to 97% of input voltage N/A 4 to 20 mA at 6 volts DC
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