The A1Z (single Phase 1-leg), A3Z (3-phase, 2-leg) and A6Z (3-phase 3-leg) are proportional, zero voltage switched, single phase power controller capable of delivering 0-99% of the applied line voltage to directly connected electric heaters. 100% power factor. Almost zero harmonics. Can control every half cycle of power to heaters. 50/60 Hz. There are four field replaceable items:
  • Printed circuit board
  • Fuses
  • SCR packages
  • MOV's (Metal Oxide Varistors)
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Item #

Item Name

Voltage Designations

Load

Output Voltage

Control Signal

A3Z-24-30 N/A A3Z-24-30 Series Three Phase 2-Leg SCR Power Controller N/A 208 to 240 VAC 50/60 Hz N/A 30 AMPS N/A 0 to 99% of input voltage N/A 4 to 20 mA at 6 volts DC
A3Z-24-40 N/A A3Z-24-40 Series Three Phase 2-Leg SCR Power Controller N/A 208 to 240 VAC 50/60 Hz N/A 40 AMPS N/A 0 to 99% of input voltage N/A 4 to 20 mA at 6 volts DC
A3Z-24-60 N/A A3Z-24-60 Series Three Phase 2-Leg SCR Power Controller N/A 208 to 240 VAC 50/60 Hz N/A 60 AMPS N/A 0 to 99% of input voltage N/A 4 to 20 mA at 6 volts DC
A3Z-24-80 N/A A3Z-24-80 Series Three Phase 2-Leg SCR Power Controller N/A 208 to 240 VAC 50/60 Hz N/A 80 AMPS N/A 0 to 99% of input voltage N/A 4 to 20 mA at 6 volts DC
A3Z-24-100 N/A A3Z-24-100 Series Three Phase 2-Leg SCR Power Controller N/A 208 to 240 VAC 50/60 Hz N/A 100 AMPS N/A 0 to 99% of input voltage N/A 4 to 20 mA at 6 volts DC
A3Z-24-150 N/A A3Z-24-150 Series Three Phase 2-Leg SCR Power Controller N/A 208 to 240 VAC 50/60 Hz N/A 150 AMPS N/A 0 to 99% of input voltage N/A 4 to 20 mA at 6 volts DC
A3Z-24-200 N/A A3Z-24-200 Series Three Phase 2-Leg SCR Power Controller N/A 208 to 240 VAC 50/60 Hz N/A 200 AMPS N/A 0 to 99% of input voltage N/A 4 to 20 mA at 6 volts DC
A3Z-24-225 N/A A3Z-24-225 Series Three Phase 2-Leg SCR Power Controller N/A 208 to 240 VAC 50/60 Hz N/A 225 AMPS N/A 0 to 99% of input voltage N/A 4 to 20 mA at 6 volts DC
A3Z-24-250 N/A A3Z-24-250 Series Three Phase 2-Leg SCR Power Controller N/A 208 to 240 VAC 50/60 Hz N/A 250 AMPS N/A 0 to 99% of input voltage N/A 4 to 20 mA at 6 volts DC
A3Z-24-350 N/A A3Z-24-350 Series Three Phase 2-Leg SCR Power Controller N/A 208 to 240 VAC 50/60 Hz N/A 350 AMPS N/A 0 to 99% of input voltage N/A 4 to 20 mA at 6 volts DC
A3Z-24-600 N/A A3Z-24-600 Series Three Phase 2-Leg SCR Power Controller N/A 208 to 240 VAC 50/60 Hz N/A 600 AMPS N/A 0 to 99% of input voltage N/A 4 to 20 mA at 6 volts DC
A3Z-24-1200 N/A A3Z-24-1200 Series Three Phase 2-Leg SCR Power Controller N/A 208 to 240 VAC 50/60 Hz N/A 1200 AMPS N/A 0 to 99% of input voltage N/A 4 to 20 mA at 6 volts DC
A3Z-38-30 N/A A3Z-38-30 Series Three Phase 2-Leg SCR Power Controller N/A 380 VAC 50/60 Hz N/A 30 AMPS N/A 0 to 99% of input voltage N/A 4 to 20 mA at 6 volts DC
A3Z-38-40 N/A A3Z-38-40 Series Three Phase 2-Leg SCR Power Controller N/A 380 VAC 50/60 Hz N/A 40 AMPS N/A 0 to 99% of input voltage N/A 4 to 20 mA at 6 volts DC
A3Z-38-60 N/A A3Z-38-60 Series Three Phase 2-Leg SCR Power Controller N/A 380 VAC 50/60 Hz N/A 60 AMPS N/A 0 to 99% of input voltage N/A 4 to 20 mA at 6 volts DC
A3Z-38-80 N/A A3Z-38-80 Series Three Phase 2-Leg SCR Power Controller N/A 380 VAC 50/60 Hz N/A 80 AMPS N/A 0 to 99% of input voltage N/A 4 to 20 mA at 6 volts DC
A3Z-38-100 N/A A3Z-38-100 Series Three Phase 2-Leg SCR Power Controller N/A 380 VAC 50/60 Hz N/A 100 AMPS N/A 0 to 99% of input voltage N/A 4 to 20 mA at 6 volts DC
A3Z-38-150 N/A A3Z-38-150 Series Three Phase 2-Leg SCR Power Controller N/A 380 VAC 50/60 Hz N/A 150 AMPS N/A 0 to 99% of input voltage N/A 4 to 20 mA at 6 volts DC
A3Z-38-200 N/A A3Z-38-200 Series Three Phase 2-Leg SCR Power Controller N/A 380 VAC 50/60 Hz N/A 200 AMPS N/A 0 to 99% of input voltage N/A 4 to 20 mA at 6 volts DC
A3Z-38-225 N/A A3Z-38-225 Series Three Phase 2-Leg SCR Power Controller N/A 380 VAC 50/60 Hz N/A 225 AMPS N/A 0 to 99% of input voltage N/A 4 to 20 mA at 6 volts DC
A3Z-38-250 N/A A3Z-38-250 Series Three Phase 2-Leg SCR Power Controller N/A 380 VAC 50/60 Hz N/A 250 AMPS N/A 0 to 99% of input voltage N/A 4 to 20 mA at 6 volts DC
A3Z-38-350 N/A A3Z-38-350 Series Three Phase 2-Leg SCR Power Controller N/A 380 VAC 50/60 Hz N/A 350 AMPS N/A 0 to 99% of input voltage N/A 4 to 20 mA at 6 volts DC
A3Z-38-600 N/A A3Z-38-600 Series Three Phase 2-Leg SCR Power Controller N/A 380 VAC 50/60 Hz N/A 600 AMPS N/A 0 to 99% of input voltage N/A 4 to 20 mA at 6 volts DC
A3Z-38-1200 N/A A3Z-38-1200 Series Three Phase 2-Leg SCR Power Controller N/A 380 VAC 50/60 Hz N/A 1200 AMPS N/A 0 to 99% of input voltage N/A 4 to 20 mA at 6 volts DC
A3Z-48-30 N/A A3Z-48-30 Series Three Phase 2-Leg SCR Power Controller N/A 480 VAC 50/60 Hz N/A 30 AMPS N/A 0 to 99% of input voltage N/A 4 to 20 mA at 6 volts DC
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