Rated Power1609 mm H2O (1200 kg/mm)
Input Voltage3300V ± 10%
Maximum Operational Torque210 % (210 %)
The Cat VFD-A1200/W1200 provides efficiency and maximized profitability for the motor control of armored face conveyors in underground longwall applications. The variable frequency drive consists of an air-cooled VFD unit, a liquid-cooled VFD unit, and an external cooling station. The Cat medium voltage drive delivers enhanced motor control and increased energy efficiency on motor applications with a rated power of up to 1200 kW (1,609 hp).


-Rated Power1609 mm H2O (1200 kg/mm)
-Input Voltage3300V ± 10%
-Maximum Operational Torque210 % (210 %)
-Slew Rate20%-80% < 20 m/sec
-SetupVFD separate from motor (cable distance up to 4 km/2.5 miles)
-Length146 in (3700 mm)
-Width49 in (1245 mm)
-Power Factor (cos phi)> 97.5% (PWM)
-Height51 in (1300 mm)
-Output Frequency0-60 Hz
-ConverterCurrent Source Inverter (CSI)
-Input Frequency50/60 Hz ± 5%
-Motor TypeAC motor
-Output Voltage0-3300V

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