ABB EHD280 Spectrum Drive Contactor 600VDC 280A 110 120VAC 50 60Hz

ABB EHD280 Spectrum Drive Contactor is a high‑current DC drive contactor rated for 600 VDC and up to 280 A, intended for use in ABB Spectrum drive configurations that require a robust switch for the DC bus. The coil is AC‑operated, nominally 110–120 VAC at 50/60 Hz, allowing control from standard AC drive control circuitry. This module forms the essential switching element inside Spectrum drive assemblies, enabling reliable on/off control of DC power to motors and other DC loads. The device supports a 600 V DC load rating and a maximum load current of 280 A, with ABB’s Spectrum‑grade construction designed for industrial environments. Typical applications include DC motor drive systems in manufacturing and material handling, servo or traction-related drives, braking circuits, and other automation processes where a solid, high‑current DC switch is required. As a component of ABB’s drive family, the EHD280 is selected when a compact, rugged contactor is needed to interface directly with ABB Spectrum drive controllers and associated power electronics, ensuring proper isolation and control of the DC supply within the system.