3D Printer 12V – 24V Heatbed MK2b 214 x 214mm PCB Dual Power Reprap MK2 Prusa i3

Features:

• Support 12V, 24V power.
• Double-sided, the other side is no wiring, heating uniformity, smooth printing.
• Regardless of the positive and negative terminal, you can free wiring.

Connection:

12V connection: One cable connected to one, another cable connected to a wire 2,3 in the same time.
At this time the resistance value of the two lines is 1.0 ~ 1.2Ω, the actual power is 144W.

24V connection: One cable connection 2, another line connected to 3 (1 unconnected), the resistance value of the two lines is 4.0Ω, actual power is 24 * 24/4 = 144W.
The new version of the circuit, whether connected 12V, or 24V, the power will stable at 144W.

Test report:

12V connection:

Current is 9.8A, as the temperature increases, the current drops to 8.8A (physical tips: resistance becomes larger as the temperature rises)

24V connection:

The theoretical maximum current is less than 5A

Note:

The LED and resistor are soldered, good compatibility, support 12V, 24V power.
If you use 24V, this time the current is very large, MOS tube heat seriously, it is easy burned because of the high temperature.
In addition, also consider the adequacy of power supply, power up to 576W of power is very expensive, if power shortage may affect the normal operation of other equipment such as motor.
Also note that because of the wire is not enough thick and cause burning hot and soft.

Package includes:

1 x 214x214mm MK2B Heated Bed Plate