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 Power 1200 kW
Input Voltage 3300V ± 10%
Maximum Operational Torque 210 %
Converter Current Source Inverter (CSI)
Input Frequency 50/60 Hz ± 5%
Motor Type AC motor
Operation 4Q
Output Frequency 0-60 Hz
Output Voltage 0-3300V
Power Factor (cos phi) > 97.5% (PWM)
Setup VFD separate from motor (cable distance up to 4 km/2.5 miles)
Slew Rate 20%-80% < 20 m/sec
Height 1300 mm
Length 3700 mm
Width 1245 mm


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