SPX020A1-4A1B1

The Eaton Cutler-Hammer SPX020A1-4A1B1 drive is a multifunctional variable frequency drive. It is an SVX 9000 series 3-phase drive with a rated output power of 20 Horsepower. The drive offers high performance for industrial applications including fans, extruders, and HVAC applications. It is also used with positioning, winder tension control, and synchronization applications. It comes with sensorless vector control and simple frequency control for motor speed control and torque regulation. The drive is housed inside a NEMA 1 enclosure with an IP 21 protection rating. The frame of the drive is frame FR6. The drive uses injected dynamic braking for speed control without costly chopper circuits. The SPX020A1-4A1B1 drive operates with a frequency of 50 to 60 Hertz. The drive has a different rated operational current for different overload conditions. With 110% overload, the drive has a current rating of 38 Amps.

The SPX020A1-4A1B1 variable frequency drive meets the EMC requirements and it is certified with the CE, UL, cUL, and RCM standards. The drive uses an AC supply system with an earthed center point. The supply frequency range of the drive falls between 45 and 66 Hertz. The power section switching frequency of the drive is adjustable between 1 and 16 kHz. The SPX020A1-4A1B1 drive is equipped with a radio interference suppression filter and a brake chopper device. The drive dissipates 0 Watts of heat per pole but it dissipates 375 Watts of heat from the equipment. For communication, the drive supports the DeviceNet, BACnet, Modbus, and EtherNet protocols. The maximum environmental temperature should not exceed 50 degrees Celsius. The installation environment should be free from EMC noise, dust, dirt, and vapors.