Iron Core Current Limiting Reactor, 30.8 uH, 1000 Amps, 60 Hz

(Fault Limit: 40 KA to 15 KA)

The iron core current limiting reactor 30.8 uH is designed to provide controlled impedance in high-current industrial power systems, helping to limit fault currents and reduce stress on downstream electrical equipment. Built with a rugged iron core construction, this current limiting reactor 30.8 uH maintains stable inductance under heavy load conditions while delivering efficient thermal performance and low losses. It is well suited for applications such as SCR drives, rectifier systems, and industrial power distribution where reliable current limiting is critical for protecting sensitive components and improving overall system stability.

Specifications:

Iron Core Current Limiting Reactor, 30.8 uH, P/N 10164L1
480 VAC, 3 PH, 60 Hz, continuous 1000 Amps
1000 Amps, 480 VAC, 40 KA to 15 KA
Voltage drop across the inductor at fault current of 15 kA: 175 V
Voltage drop across each inductor is 2.4 % at 1000 Amps
Bus bars are 4” x 3/8”, bent 90 degrees
Copper Windings
Three CLR’s in one Indoor Sheet Metal Enclosure: 50” H x 36” W x 26” D
Total Weight: 800 lbs. or TBD

The schematic of the 3 PH iron core current limiting reactor system is shown below.

A schematic of each gapped inductor is shown below.

The dimensions of an iron core gapped inductor are shown below.

The dimensions of an indoor sheet metal enclosure with three iron core CLRs are shown below. The three iron core CLRs are spaced apart to minimize magnetic interference.