Connection method:

12V connection method: Connect one wire to 1, and connect the other wire to both 2 and 3 at the same time.

24V connection method: Connect one wire to 2 and the other wire to 3 (1 is suspended and not connected)

Testing:

12V: Maximum current of approximately 10A

24V: less than 5A

The most compatible PCB hot bed in history, supporting 12V/24V power supply

Test report:

Connect 12V, current 9.8A, as the temperature increases, the current decreases to 8.8A (physics tip: resistance increases with temperature)

Connected to 24V, theoretical maximum current less than 5A

If 24V is used, the current is very high and the MOS transistor heats up severely, making it easy to burn out due to high temperature. In addition, it is also necessary to consider whether the power supply is sufficient. Power supplies with a power of up to 576W are very expensive, and if the power supply is insufficient, it may affect the normal operation of other equipment such as motors.Also, pay attention to whether the wire becomes hot or soft due to insufficient thickness?

Latest version mk2b:

Compared to the latest version Mk2a, the main upgrade is the 12V 24V dual power supply.

12V connection method: Connect one wire to 1, and connect the other wire to both 2 and 3 at the same time.

24V connection method: Connect one wire to 2 and the other wire to 3 (1 is suspended and not connected)