M5Stack ATOM HUB SwitchD Direct 2-Relay Kit is a direct relay control kit, an RS485 relay controller, and a compact Modbus relay switch. This direct power relay module is designed for compact industrial power switching. Description M5Stack ATOM HUB SwitchD Direct 2-Relay Kit is the direct-input version of SwitchD. This direct relay control kit connects input power straight to the relay contacts. As an RS485 relay controller, a Modbus relay switch, and a direct power relay module, it is made for compact industrial power switching. Features Direct relay control kit for two switched loads RS485 relay controller for multi-device communication Modbus relay switch for industrial networks Direct power relay module for simpler load wiring Industrial power switching with 9V-24V to 5V step-down support Specifications Product M5Stack ATOM HUB SwitchD Direct 2-Relay Kit Type Direct relay control kit Communication RS485 relay controller and Modbus relay switch Power Design Direct power relay module Use Case Industrial power switching Relay Channels 2-channel relay Input Voltage 9V-24V to 5V step-down for ATOM supply Interfaces HY2.0-4P, HT3.96-4P RS485, relay terminals, AC/DC IN Included Controller ATOM Lite Product Size 72 x 40 x 30mm Applications M5Stack ATOM HUB SwitchD Direct 2-Relay Kit works well as a direct relay control kit for machine loads. It works well as an RS485 relay controller for chained devices. It works well as a Modbus relay switch for panel control. It works well as a direct power relay module for compact enclosures. It works well for industrial power switching in cabinets and equipment. Product List 1 x ATOM HUB SwitchD base 1 x ATOM Lite 4 x Magnet 1 x Double-sided tape 1 x DIN rail clamp 1 x 3.96 x 4P plug 3 x 3.96 x 3P plug 1 x M4 hex key 1 x M2 hex key 2 x M4 x 10 mm hexagon countersunk screw 1 x M2 x 20 mm hexagon socket cup head machine screw Other Content Resources M5Stack K042-D Official Documentation K042-D PDF Manual SP485EE Datasheet FAQ What makes K042-D different?M5Stack ATOM HUB SwitchD Direct 2-Relay Kit is a direct relay control kit with direct power routing to relay contacts. Does it support RS485 and Modbus?Yes. This RS485 relay controller also works as a Modbus relay switch. Where is this direct power relay module useful?This direct power relay module is built for compact industrial power switching.