RepRap MK2B PCB Dual Power Heat bed 12V/24V for 3D Printer RAMPS1.4

RepRap MK2B PCB Dual Power Heat bed 12V/24V for 3D Printer RAMPS1.4 is a Dual Power Supply designed for Reprap Prusa and Mendel 3D Printers and can be used with other 3D Printers too. MK2B is the latest version of the heat bed and features LEDs and 12/24V Dual power supply options. This heat bed is etched directly on 35um copper clad, and features uniform even heating and a high heat output.

This Heatbed has a dual power capability allowing it to be used with 12V or 24V power supply sources. It features a central mounting hole on the front side to allow for three-point mounting. This is much easier for bed leveling in comparison to 4 point mounting.

Connection:

• 12V connection: One cable connected to 1, another cable connected to a wire 2, 3 at 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.

Current Consumption:

• 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.  

Features :

• Come with resistor and LEDs soldered, basic soldering skills needed to solder the power wire
• 2 layer, 35μm copper.
• Copper Plated Holes
• Red Solder mask : Both sides
• White Silkscreen : Both sides
• Resistance between 1.0 and 1.2 ohm

Specifications:

Outer Dimensions (mm)	214×214
Heatbed Dimensions	200×200
Colour	Red
Etching	35um copper
Laminate	FR4 1.6 ±0.15 mm
Supply Voltage (V)	12 or 24

Package Includes :

• 1 x MK2 3D printers Dual Power PCB HeatBed