XEC-DR32H/D1

Description

H-class CPU/base with 16 DC inputs and 16 relay outputs (Form A), intended for applications that require true galvanic isolation on outputs for AC/DC switching. DR32H-D1 denotes D1/regional derivative SKUs; consult datasheet for exact suffix meaning.

The Polar Energy Assessment:

The DR32H (and DR32H/D1 variants) place relay outputs on the CPU for switching AC mains and inductive loads without external contactors for small currents, while retaining H-class speed, high-speed counter support and XGB expansion compatibility. Relay ratings, life expectancy and wiring commons are specified in the manual; confirm regional relay ratings and the exact D1 suffix behavior with your supplier.

Pros

• Relay outputs provide galvanic isolation and AC/DC switching flexibility.
• H-class processing and standard platform features maintained.

Limitations

• Mechanical relays have finite electrical life and lower switching frequency than transistor outputs.
• For frequent/high-current switching, external contactors or drivers are recommended.

Typical use cases

• Panels that must switch mains lamps, small heaters, solenoids (via relay), pilot loads, or where galvanic isolation is required between PLC electronics and switched loads.