Allen-Bradley 1321-DC18-4 DC Link Choke

The Allen-Bradley 1321-DC18-4 (1321-DC18-4) is a DC link choke engineered for industrial automation equipment and variable frequency drive systems. Designed to serve as a critical power component, this unit supports smooth electrical performance by mitigating line harmonics, reducing peak currents, and protecting connected drive equipment against transient disturbances. It functions as an inductive filtering element within the direct-current intermediate circuit of compatible drive installations, helping to enhance drive reliability and extend the service life of internal components. With a net weight of approximately 10 kg, this rugged unit is built for demanding industrial environments and control panel integrations. The choke is suited for routine maintenance, repair tasks, and direct system replacement in manufacturing facilities, material handling operations, and motor drive setups where dependable harmonic suppression and power quality management are required. Verify mounting requirements and system parameters before deployment.