The 1321-3RAB400-C reactor is a 1321 series line reactor device designed by Allen-Bradley. It is used as a protection device for Allen-Bradley drives. The main function of the reactor is to absorb the power line disturbance from an active input power supply. The reactor has a voltage range of 380 to 690 Volts AC. It comes with an IP 11 NEMA 1 rated enclosure that is not water-resistant. The reactor also is not water-resistant since it has an open architecture. The flagged terminal reactor device has a current rating of 400 Amps. The line reactor can be mounted directly to the industrial floor by using mounting screws. The 1321-3RAB400-C reactor is designed using sheet steel. The reactor can work perfectly with a three-phase power supply. The reactor can compensate for additional currents and higher frequencies that are caused by the presence of harmonics.

The 1321-3RAB400-C line reactor has a maximum switching frequency of 20 kHz. The fundamental frequency of the line reactor device is 50 to 60 Hertz. The dielectric strength of the line reactor device is 3000 Volts RMS. It has an inductance tolerance of +/-10%. The insulation system of the line reactor is a Class N system with tolerance for a temperature of up to 200 degrees Celsius. The line reactor helps eliminate tripping, improves the true power factor, extends the life of the semiconductor, and reduces the voltage notching. The 1321-3RAB400-C line reactor protects the drive from surge currents. It reduces motor temperature and decreases the audible motor noise. In the drive system, the reactor helps reduce cross-talk between drives.