DC12V - 24V Max 40A MOSFET High Current Load MOS Tube Heating Controller Heated Bed Power Module Hot Bed Power Expansion Board Compatible for Anet CR-10 Ender 3 Prusa 3D Printer

External high current mosfet module is a solution for power a large heatbed without blow up the control board of your 3D printer.

Working voltage:DC 12-24V ;Working current:typical 30A up to 40A with coolingfan; Control pin compatible with both aux pin and bed mosfet output It can be controlled by any aux pins from control board so you can save a mosfet output to doing other things(need to change the heater pin in the firmware) Please mind the anode and cathode of the connectors; Please insure the wire of your circuits is big enough for handle such amonut of current; Do not tin the ends of the wire; Preferably,use bootlace ferrules on the end of the wires; Please make sure the screws of the mosfet module terminals are tighten up to minimize the contact resistance otherwise the terminals will melt under lager current.

Each module will doing a load test before delivery; Superior performance of MOSFET(60V/230A R(ds)2.2mΩ); Large heat sink 57A terminals; Can handle up to 40A with cooling fan