XBE-RY16A

Description

16-point relay output module, offering galvanic Form A contacts for AC or DC switching, typically arranged with two commons of eight points each. Rated ~2 A per point, with higher common capacity indicated on vendor pages.

The Polar Energy Assessment:

The RY16A is the denser relay-output variant for the XGB expansion bus, packing 16 SPST relay contacts for applications needing many isolated switching points. It follows the same electrical envelope as other RY cards, with datasheet ratings around 2 A per point and commons sized for modest aggregated loads; removable screw terminals and standard mechanical dimensions make it a drop-in for XGB controller panels.

Pros

• Galvanic isolation for each relay contact, ideal for mixed AC/DC switching.
• Higher point count reduces number of modules when many isolated outputs are needed.

Limitations

• Relays still carry the same frequency and lifetime tradeoffs; assess electrical life against expected cycles.
• Aggregate common currents must be planned; some configs list 5 A common limits.

Typical use cases

• Panels switching many pilot or AC/DC loads where isolation prevents noise and simplifies safety separation.