4CH 16A High Power Switch Actuator,with current detection (Buspro)
https://b2b.hdl-automation.cz/en/support/products/data-sheets/buspro/relay-actuators/hdl-mr0416-431-16a-relay-module
https://b2b.hdl-automation.cz/en/support/products/data-sheets/buspro/relay-actuators/hdl-mr0416-431-16a-relay-module