Incoming Power
The main supply enters the enclosure and connects to the main switch or isolator.
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GA&DA is a professional electrical distribution box manufacturer, providing reliable power distribution and circuit protection solutions for residential, commercial, industrial and solar applications worldwide.
Safe · Organized · ServiceableProduct Overview
An electrical distribution box receives incoming electrical power and distributes it safely to multiple branch circuits. It normally houses protective and switching devices such as miniature circuit breakers, residual current devices, surge protection devices and isolators.
Each outgoing circuit is protected independently. If an overload, short circuit or leakage fault occurs, the corresponding protective device disconnects the affected circuit and helps reduce the risk of cable damage, equipment failure and electrical hazards.
Distribution boxes are widely used in homes, offices, commercial buildings, workshops, industrial equipment and renewable energy systems.
From Supply to Load
Power enters through the main supply, passes through switching and protective devices, and is divided into separate circuits for connected loads.
The main supply enters the enclosure and connects to the main switch or isolator.
The busbar distributes incoming power to protective devices mounted on the DIN rail.
MCBs, RCCBs or RCBOs protect outgoing circuits against applicable electrical faults.
Protected power is supplied separately to lighting, sockets, equipment or machinery.
Product Selection
Choose the enclosure material and mounting method according to the installation environment, available space and required level of protection.
Lightweight and corrosion-resistant, with transparent-cover options for convenient circuit inspection.
Best forHomes, offices, shops and light-duty systems
The smoked transparent cover allows quick visual inspection while helping protect the installed devices.
Best forVisible circuit status and protected installations
Installed directly on the wall for straightforward fitting, inspection and ongoing maintenance.
Best forRenovations, utility rooms and workshops
Different enclosure sizes provide suitable DIN rail capacity for small or expanded circuit layouts.
Best forProjects requiring flexible circuit capacitySix Selection Factors
Choosing the correct box involves more than matching its size. Confirm the circuits, installation conditions and protective devices before ordering.
Count the outgoing circuits and reserve suitable capacity for future expansion.
Confirm indoor, outdoor, dusty or moisture-exposed operating conditions.
Select lightweight plastic or mechanically robust, grounded metal.
Choose surface mounting for access or flush mounting for a cleaner finish.
Specify MCBs, RCCBs, RCBOs, SPDs, isolators or other required components.
Confirm system voltage, connected load and intended application.
Application Solutions
Match the enclosure material, protection level and circuit capacity to the installation environment and connected loads.
Reliable circuit distribution for lighting, sockets, air conditioning and other building loads.
Organized power distribution and circuit protection for machinery, production lines and workshop equipment.
Protected electrical distribution for damp, dusty and weather-exposed equipment locations.
Distribution, protection and isolation solutions for photovoltaic, storage and renewable energy equipment.
Send us your system voltage, number of circuits, installation environment and required protection devices.
Our team will recommend a suitable distribution box configuration and provide a project quotation.
Meet GA&DA Worldwide
Meet our team at international electrical exhibitions, see GA&DA products up close and discuss distribution box requirements face to face.
Customers inspect electrical products and discuss application requirements with our team.
Visitors review distribution and protection products directly at the exhibition booth.
Our team communicates with international buyers, contractors and distribution partners.
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GA&DA combines enclosure processing, component assembly and electrical testing to deliver reliable distribution boxes for international customers. Production and inspection follow standardized quality procedures from incoming materials to final shipment.
Dedicated production lines for combiner box assembly, wiring, and enclosure fabrication. Consistent quality through standardized processes.
Skilled technicians assemble DC fuses, breakers, SPDs, and busbars into each enclosure. Every connection torque-checked and documented.
Every unit undergoes continuity, insulation resistance, and dielectric withstand testing. Results recorded and shipped with the unit.
In-house metal stamping and CNC processing for enclosure modification and custom mounting plates. Short lead times for OEM orders.
DC fuses, breakers, SPDs, and enclosures stocked in-house. Ready for assembly without long component lead times.
19,860 m² manufacturing facility with assembly, testing, and warehouse under one roof. Factory visits welcome — video calls available.
Want to inspect our production capabilities before placing an order? Schedule an on-site visit or factory video call with our team..
Schedule a Factory VisitSend us your required way count, voltage, enclosure type, installation environment, quantity and internal component requirements.
We will provide a model recommendation, quotation and estimated lead time.
An electrical distribution box receives incoming power and divides it into multiple outgoing circuits. It houses protective devices such as MCBs, RCCBs, RCBOs and surge protection devices to help protect cables, equipment and users from electrical faults.
The required number of ways depends on the number of outgoing circuits and the modular width of the protective devices. It is generally advisable to reserve additional space for future circuit expansion. Send us your circuit schedule and we can recommend a suitable configuration.
The two terms are often used interchangeably. In many markets, a distribution box refers to a compact enclosed unit for residential or light commercial circuits, while a distribution board may refer to a larger or more complete power distribution assembly.
Selected models are suitable for outdoor installation when the enclosure provides the required resistance to dust and water. The correct IP rating should be selected according to the actual installation environment.
Yes. GA&DA can configure circuit breakers, residual current protection devices, surge protection devices, isolators, terminal blocks, busbars and wiring layouts according to project requirements.
Please provide the system voltage, number of ways, enclosure material, installation method, required IP rating, internal components, order quantity and destination country. Drawings or circuit diagrams are also helpful for custom projects.
Yes. OEM options may include enclosure configuration, internal assembly, wiring, product labels, logo printing, packaging and technical documentation. Customization availability depends on the model and order quantity.