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)
Unit of Measure
Specifications
Voltage Designations |
N/A 120 to 480 VAC 50/60 Hz |
Load |
N/A 1200 AMPS |
Output Voltage |
N/A 0 to 99% of input voltage |
Control Signal |
N/A 4 to 20 mA at 6 volts DC |
Input Impedance |
N/A 300 ohms |
Power Dissipation (Watts) |
N/A 2.4 x maximum current |
Cooling |
N/A
Convection: 30-100 amps Fan (120 VAC): 150-1200 amps |
Thermostat |
N/A 190 ºF (fan cooled units only) |
Net Weight |
N/A 180 Pound |
Shipping Weight |
N/A 230 Pound |
Minimum Wire Gauge (Copper Wire Only- 90 ºC Temp Wire) |
N/A FOUR: MCM 350 |
Wire Lug Torque (90 ºC Temp Wire) |
N/A 375 lb/in |
Lug Size (90 ºC Temp Wire) |
N/A FOUR: 600MCM - 2 |
Compact |
N/A No |
Options
R Options |
N/A -R120 - 120 VAC on-off command signal -R32 - 10 to 32 VDC on-off command signal |
Third Leg Fuse Option |
N/A -3RD |