XBC/XEC-DR28U/DC

Description

DR28U DC-supply variant, same features as DR28U but designed for 24 VDC supply, 16 DI and 12 relay outputs in typical listings; chosen for DC-powered panels and battery-backed systems.

The Polar Energy Assessment:

DR28U/DC is the 24 VDC-powered variant of the DR28U family; it retains the family’s features such as relay outputs, Ethernet ports and large expansion allowance, while taking a DC plant supply instead of AC mains. This is the obvious choice where a 24 VDC plant bus or battery backup is required, especially on remote skids or mobile equipment. Confirm the exact relay ratings, program memory and analog/positioning options on the SKU you buy.

Pros

• Runs directly from 24 VDC plant without AC to DC conversion, handy on mobile or battery-backed systems.
• Keeps the same Ultimate feature set and expansion headroom as the AC model.

Limitations

• DC wiring and inrush considerations differ from AC; plan protection and fuse sizing.
• Relay contact and auxiliary current specs should be checked carefully for coil loads and aggregated current draw.

Typical use cases

Remote skids, battery-backed control cabinets, DC-powered machinery that still requires networked features and isolated relay switching.