Replacement Parts › 4 Channel Relay Module Image 1 of 1 4 Channel Relay Module $22.00 Replacement relay module for the DWC2440 Control Box Purchase Added! Replacement relay module for the DWC2440 Control Box Related Products MK3-4 PlanetCNC TNG Controller Conversion Kit $525.00 Sold out DWC Main Relay $24.99 DWC2440 Jog Control Pendant $75.00 DWC1824 & DWC2440 Axis Linear Bearing from $27.00 DWC2440 Replacement X and Y Axis Belts from $21.00