Feature: 1. Small Size: The for artillery printer relay is small in size, filled with epoxy resin inside, which is shock proof, moisture proof and corrosion proof 2. 2500V Insulation Withstand Voltage: The for artillery printer relay photoelectric isolation between the input and output circuits, insulation withstand voltage 2500V 3. Wide Input Voltage: The DC control for artillery printer relay has a wide input voltage range and small control current, less than or equal to 15 mA 4. 0 Voltage Turn on: The single phase for artillery printer relay has fast switching speed, 0 voltage turn on, 0 current turn off, and low RF interference 5. Built in RC absorption: The single phase for artillery 3D printer relay has no mechanical action parts, built in resistance capacitance absorption, to protect the impact of the instantaneous current Specification: Item Type: For Artillery Printer Relay Material: ABS, Metal Applicable Models: for Artillery 3D Printer. Package List: 1 x For Artillery Printer Relay