About this item

The BIGTREETECH BTT Relay V1.2 is a smart, energy-saving expansion module designed to automatically shut off your 3D printer after a print is completed. Compatible with a wide range of control boards like SKR V1.3, SKR Mini, and printers such as Ender 3, CR-10, and Delta machines, this module enhances safety, convenience, and energy efficiency in your printing workflow. It works by controlling the power supply via a relay switch that is triggered through your firmware (such as Marlin or Klipper). Once the print finishes, the board sends a signal to the relay, which safely cuts off the power to the printer. This feature is especially useful for long prints that complete overnight or when you're away from the machine. The BTT Relay V1.2 includes protection features like anti-spark design, LED indicators, and fail-safe switching to prevent accidental power cuts during printing. It is ideal for reducing power consumption, preventing overheating, and offering peace of mind when running long or unattended prints. Its compact form factor and straightforward wiring make it easy to install and integrate into almost any 3D printer setup.