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-24-40 N/A B3P-24-40 Series Three Phase SCR Transformer Controller N/A 208 to 240 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
B3P-24-60 N/A B3P-24-60 Series Three Phase SCR Transformer Controller N/A 208 to 240 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
B3P-24-80 N/A B3P-24-80 Series Three Phase SCR Transformer Controller N/A 208 to 240 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
B3P-24-100 N/A B3P-24-100 Series Three Phase SCR Transformer Controller N/A 208 to 240 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
B3P-24-150 N/A B3P-24-150 Series Three Phase SCR Transformer 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
B3P-24-200 N/A B3P-24-200 Series Three Phase SCR Transformer Controller N/A 208 to 240 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-24-225 N/A B3P-24-225 Series Three Phase SCR Transformer Controller N/A 208 to 240 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-24-250 N/A B3P-24-250 Series Three Phase SCR Transformer Controller N/A 208 to 240 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-24-350 N/A B3P-24-350 Series Three Phase SCR Transformer Controller N/A 208 to 240 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-24-500 N/A B3P-24-500 Series Three Phase SCR Transformer Controller N/A 208 to 240 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-38-40 N/A B3P-38-40 Series Three Phase SCR Transformer Controller N/A 380 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
B3P-38-60 N/A B3P-38-60 Series Three Phase SCR Transformer Controller N/A 380 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
B3P-38-80 N/A B3P-38-80 Series Three Phase SCR Transformer Controller N/A 380 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
B3P-38-100 N/A B3P-38-100 Series Three Phase SCR Transformer Controller N/A 380 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
B3P-38-150 N/A B3P-38-150 Series Three Phase SCR Transformer Controller N/A 380 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
B3P-38-200 N/A B3P-38-200 Series Three Phase SCR Transformer Controller 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
B3P-38-225 N/A B3P-38-225 Series Three Phase SCR Transformer Controller 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
B3P-38-250 N/A B3P-38-250 Series Three Phase SCR Transformer Controller 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
B3P-38-350 N/A B3P-38-350 Series Three Phase SCR Transformer Controller 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
B3P-38-500 N/A B3P-38-500 Series Three Phase SCR Transformer Controller N/A 380 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-48-40 N/A B3P-48-40 Series Three Phase SCR Transformer Controller 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
B3P-48-60 N/A B3P-48-60 Series Three Phase SCR Transformer 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
B3P-48-80 N/A B3P-48-80 Series Three Phase SCR Transformer 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
B3P-48-100 N/A B3P-48-100 Series Three Phase SCR Transformer 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
B3P-48-150 N/A B3P-48-150 Series Three Phase SCR Transformer 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
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