DC Fridge DIY Kit CX400 + VX400O 400L

The DC Fridge CX400 + VX400O is a DIY refrigeration kit for a 400L build, pairing a cooling unit with an evaporator plate for boats, caravans and RVs.

This Dometic Cold Machine DIY Kit is made up of the CX 400 cooling unit, VX 400-O evaporator cooling plate, and digital thermostat.

The Dometic CX & VX series delivers tailored cooling power for every boat and every box. With compact condensing units and versatile evaporators, the system adapts seamlessly to volumes from 50 to 400 L. Precision digital control, reliable quick-connect couplings and low-GWP refrigerant* make installation simple and performance dependable. Whether for a compact galley fridge or a high-capacity fish box, CX & VX gives you the flexibility to design refrigeration that’s as individual as your voyage.

Benefits of Dometic CX & VX Series

• Flexible combinations of condensing units and evaporators to suit boxes from 50 - 400 L
• Reliable quick-connect couplings for fast, secure installation
• Compact compressor units designed for tight marine spaces
• Modern roll-bond evaporators with clean faceplate design for seamless integration
• Precision digital temperature control with high-accuracy NTC sensor
• Energy-efficient performance with low-GWP refrigerant* (R1234yf)
• Suitable for both new builds and retrofit upgrades
• Multiple evaporator formats (flat, O-box, fan-cooled, freezer) to match any compartment

Cooling Unit Specifications:

• Model / SKU: CX 400 / 9630000218
• Voltage: 12 / 24 V DC
• Cooling Capacity: up to approx. 400 L / 14 cu ft
• Power Consumption: 80 W
• Refrigerant Type: R1234yf
  
• Global Warming Potential: 0.501
• Refrigerant Quantity: 35g
• CO2 Equivalent (tCO2): 0.000018
• Dimensions (W × D × H): 290 × 156 × 144 mm
• Weight: ~4.1 kg

Plate Evaporator Specifications:

• Model / SKU: VX 400-O / 9630000226
  
• Unit Type: Roll-bond capillary plate
• Compatible With: CX 400 cooling units
• Voltage: 12 / 24 V DC
• Power Consumption: 73W
• Refrigerant Type: R1234yf
• Global Warming Potential: 0.501
• Refrigerant Quantity: 30g
• CO2 Equivalent (tCO2): 0.000015
• Pipe Length: 2.2m
• Connection Type: Spring Coupling
• Max Cooling Capacity at 35, 50, 100 mm PU (Fridge): 200, 400, 500
• Max Cooling Capacity at 35, 50, 100 mm PU (Freezer): 65, 130, 160
• Internal Freezer Volume (m3): 17
• Dimensions (W × H × D): 397 × 304 × 187 mm
• Weight: ~2.1 kg

Specifications