The MDDB ac distribution box can cut off and connect the power supply for the household power system, effectively control each power line, and achieve the purpose of safe power use


  • IP65 waterproof grade
  • PA66 flame retardant material
  • PC flame retardant housing
  • Humanized design
  • Long lasting
  • RoHS Material


In today’s world, electricity has become a basic necessity. Our homes are filled with various electrical appliances and devices that require a constant and stable supply of electricity. To ensure a safe and efficient distribution of electricity throughout your home, it is essential to have a well-designed and properly installed household AC distribution box.

A household AC distribution box, also known as an electrical distribution panel or consumer unit, is a central hub that distributes the electricity supply from the utility company to different circuits within your home. It is a critical component in your home’s electrical system, ensuring the safe and efficient distribution of electricity while providing protection against electrical faults and overloads.

MOREDAY AC Distribution Box MDDB- ECO Friendly Electrical Equipment


Easy to solve wiring problems

Waterproof resistant high models complete ac outdoor waterproof box


The shell is highly flame-retardant. High waterproof material, impact resistance, and long service life.


Has good wear resistance.Heat resistance and chemical resistance can meet static electricity dissipation and electrostatic discharge (ESD) protection requirements

MOREDAY AC Distribution Box MDDB Product Size


Model MDDB
Protection Level
Mounting Type
Fire Resistence
Ambient Temperature
-5℃~+40℃,50% Humidity Permitted Under Max+40℃


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Common Queries

Frequently Asked Questions

You'll find answers about our products. If your question is not answered below,
please feel free to contact us.

A: The main purpose of a household AC distribution box is to safely distribute electricity from the utility company to different circuits within your home while protecting against electrical faults and overloads.

A: Key components of an AC distribution box include circuit breakers, residual current devices (RCDS), surge protective devices (SPDS), fuses, and busbars.

A: The MDB is the primary electrical panel that distributes the incoming power supply to various circuits in your home, while the SDB is a secondary panel that further distributes electricity from the MDB to specific areas or rooms.

A: Calculate the combined power consumption of all electrical appliances and devices in your home to determine the total electrical load capacity required. This will help you select a distribution box with the appropriate number of circuit breakers and sufficient load capacity to meet your home’s needs.

A: Important factors to consider when selecting an ac distribution box include load capacity, compliance with electrical safety standards and regulations, and suitability for your home’s environmental conditions, such as temperature, humidity, and potential exposure to water or dust.

A: To maintain your ac distribution box, periodically inspect it for signs of wear, damage, or corrosion; test your RCDS every six months; avoid overloading circuits; address tripped circuit breakers or blown fuses promptly; and keep the area around the box clean and clutter-free.

A: It is strongly recommended to hire a licensed and experienced electrician to install your AC distribution box, as improper installation can lead to serious electrical hazards and may not comply with local electrical codes.

A: Properly labeling circuit breakers and RCDS helps you quickly identify and isolate specific circuits during maintenance or emergencies, reducing the risk of electrical accidents and ensuring a more efficient response to potential issues.

A: Ingress protection (IP) ratings indicate the level of protection that a distribution box offers against the ingress of solid objects, dust, and water. Choosing a distribution box with an appropriate IP rating ensures the box’s longevity and reliable performance in your specific environment.

A: Frequent tripping of a circuit breaker or fuse may indicate an underlying issue, such as a faulty appliance, damaged wiring, or an overloaded circuit. To resolve the problem, identify and address the cause of the fault before resetting or replacing the breaker or fuse. Consult a licensed electrician if you are unable to determine the cause or if the problem persists.

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