Relay board with 4x 24 VDC NO relays. This board is designed to be used togheter with eumesmo-io-24v16ch, but can be driven by any 24V control circuit compatible with NPN inputs. It uses Omron 16A relays and is limited to 12A/channel per copper trace capacity.
The board is compatible with the SP7 DIN rail system from Metaltex.
VERSION HISTORY
V1.2 - 2026/06/13 - Repository renamed from RELAY-24V-4CH-12A to eumesmo-rl-4ch12A to align the design with the eumesmo line of building automation products.
V1.1 - 2026/06/02 - Input terminal blocks replaced from 2.54mm to 3.5mm pitch for easier installation in the field.
V1.0 - 2025/12/19 - Initial release.
This project is licensed under the Creative Commons BY-NC 4.0 License. Commercial use is not permitted without prior written consent. See the LICENSE.txt file for details.