LMPD Solar power distribution box

LMPD Solar power distribution box

1. Basic configuration
Circuit: 4, 8, 12, 18, 24, 36
Applicable systems: 500V DC/1000V DC / 1500V DC
Protection level: IP65
Material: ABS
Installation method: wall-mounted, floor-standing
Maximum DC input voltage: DC 1500V
Single input rated current: 12A/15A/20A/32A
Input fuse: 15A/20A/32A photovoltaic dedicated DC fuse
Output total current: 32A
Lightning protection module: DC 1500V Class II surge protector (SPD)
Insulation withstand voltage: ≥ DC 6000V

1. Basic configuration
Circuit: 4, 8, 12, 18, 24, 36
Applicable systems: 500V DC/1000V DC / 1500V DC
Protection level: IP65
Material: ABS
Installation method: wall-mounted, floor-standing
Maximum DC input voltage: DC 1500V
Single input rated current: 12A/15A/20A/32A
Input fuse: 15A/20A/32A photovoltaic dedicated DC fuse
Output total current: 32A
Lightning protection module: DC 1500V Class II surge protector (SPD)
Insulation withstand voltage: ≥ DC 6000V

The HA Outdoor Waterproof Distribution Box is a modular electrical protection solution designed for both indoor and outdoor use. Constructed from high-strength engineering plastic with a transparent viewing window and an IP66 high protection rating, this box safely accommodates air switches, circuit breakers, and other electrical components.
Widely applied in residential distribution, photovoltaic (PV) power stations, new energy charging piles, outdoor construction sites, and industrial facilities, it provides reliable waterproof, dustproof, and anti-electric-shock protection for electrical systems.

2. Key Product Features

✅ IP66 High Protection Rating for Harsh Environments

  • Full Dustproof & Heavy Water Jet Resistant: Meets IP66 standards, making it suitable for open-air outdoor use and resistant to heavy rain.
  • Durable Materials: The main body is made of high-quality ABS, and the transparent cover is impact-resistant PC (Polycarbonate). It is UV-resistant, anti-aging, and resistant to high and low temperatures.
  • Superior Sealing: Equipped with a high-elasticity silicone sealing ring and precision buckle structures to ensure long-term moisture protection, anti-condensation, and resistance to corrosive gases.

✅ Modular Design for Flexibility

  • Standard Configuration: Features single-row layout compatible with 35mm DIN rails. It easily installs 1P/2P/3P air switches, leakage protectors, fuses, etc.
  • Ample Wiring Space: Internal space for organizing busbars and ground bars, ensuring neat wiring and easy maintenance.
  • Full Series Options: Available in 4 to 36 ways to meet diverse power distribution needs for both household and industrial applications.

✅ Humanized Design for Safety & Convenience

  • Transparent Window: Allows visual inspection of switch status without opening the box, enabling quick troubleshooting.
  • High-Altitude Warning: A prominent WARNING label on top reminds users of high-voltage risks to prevent accidental contact.
  • Cable Entry Points: Pre-drilled holes on both sides with waterproof cable glands (PG heads) ensure reliable sealing for incoming and outgoing cables.
  • Surface-Mount Installation: Wall-mounted design for easy installation and maintenance.

✅ Safe & Reliable Performance

  • High Insulation: Excellent insulation resistance (≥100MΩ) to prevent electric shock.
  • Fast Tripping: Quick response to short circuits with built-in fuses and circuit breakers to prevent fires and equipment damage.
  • Specialized Configurations: Supports optional Surge Protective Devices (SPD) and anti-reverse diodes, making it ideal for PV DC combiner applications.

3. Technical Specifications

Parameter Detail
Model HA
Number of Ways 4、8、12、18、24、36 Ways (Single Row)
Rated Voltage AC 220V/400V, DC 1000V (PV Compatible)
Rated Current DC ±10A-32A per circuit (Depends on installed components)
Protection Grade IP66 (Dustproof & Heavy Water Jet Resistant)
Material Body: ABS Engineering Plastic; Cover: PC Polycarbonate
Operating Temp. -25°C ~ +60°C
Humidity ≤95%, non-condensing, no corrosive gases
Max. Altitude ≤2000m
Insulation Resistance ≥100MΩ
Installation Type Surface/Wall-Mounted
Rail Type Standard 35mm DIN Rail
Standard Config. Fuse, Circuit Breaker, SPD, Anti-Reverse Diode (Optional)

4. Structure & Configuration

🔧 Core Components

  1. Main Enclosure: High-strength ABS body for durability and corrosion resistance.
  2. Transparent Cover: PC viewing window with a secure sealing mechanism.
  3. Sealing Ring: High-quality silicone gasket to maintain IP66 standards.
  4. DIN Rail: Pre-installed standard rail for easy component mounting.
  5. Cable Glands: Heavy-duty waterproof connectors for cable entry/exit.
  6. Locking Buckles: Green, easy-to-use latches for secure closure.

📦 Optional Accessories

  • DC/AC Fuses
  • Circuit Breakers (Switches)
  • Surge Protective Device (SPD / Lightning Arrester)
  • Anti-Reverse Diodes (For PV parallel circuits)
  • Neutral Busbar / Ground Busbar
  • Waterproof gland
  • Photovoltaic connector

5. Applications

  • Residential Use: Distributed PV systems for villas, self-built houses, and charging pile power distribution.
  • PV Power Stations: DC combiner boxes at the front end of string inverters in solar farms.
  • Outdoor Scenarios: Construction site temporary power, street lighting control, landscape lighting, EV charging stations.
  • Industrial Settings: Workshops, warehouses, sewage treatment facilities, and other harsh environment systems.
  • Specialized Areas: Communication base stations, security monitoring, ships, and airports requiring waterproof power distribution.

6. Full Series Selection Guide

Model Ways Suitable Scenarios
HA-4WAY 4 Small households, single EV chargers
HA-8WAY 8 General households, small PV systems
HA-12WAY 12 Standard households/commercial use, PV combiner boxes
HA-16WAY 16 Large households, commercial distribution
HA-24WAY 24 Industrial applications, large PV power stations
HA-36WAY 36 Large ground power station

7. Installation Instructions

  1. Preparation: Ensure the installation location is dry and clear. Always perform work with the power OFF.
  2. Mounting: Fix the box to the wall or bracket using expansion screws.
  3. Cable Installation: Thread cables through the waterproof glands and secure the glands tightly.
  4. Component Installation: Install circuit breakers and protectors on the DIN rail and complete the wiring.
  5. Finalization: Close the cover and fasten the latches to complete installation.
  6. Maintenance: Regularly check the sealing ring and cable ports for damage. Keep the transparent window clean.
Note: Never open the box with power connected. Avoid using in flammable and explosive environments.
The HA Outdoor Waterproof Distribution Box is a modular electrical protection solution designed for both indoor and outdoor use. Constructed from high-strength engineering plastic with a transparent viewing window and an IP66 high protection rating, this box safely accommodates air switches, circuit breakers, and other electrical components.
Widely applied in residential distribution, photovoltaic (PV) power stations, new energy charging piles, outdoor construction sites, and industrial facilities, it provides reliable waterproof, dustproof, and anti-electric-shock protection for electrical systems.

2. Key Product Features

✅ IP66 High Protection Rating for Harsh Environments

  • Full Dustproof & Heavy Water Jet Resistant: Meets IP66 standards, making it suitable for open-air outdoor use and resistant to heavy rain.
  • Durable Materials: The main body is made of high-quality ABS, and the transparent cover is impact-resistant PC (Polycarbonate). It is UV-resistant, anti-aging, and resistant to high and low temperatures.
  • Superior Sealing: Equipped with a high-elasticity silicone sealing ring and precision buckle structures to ensure long-term moisture protection, anti-condensation, and resistance to corrosive gases.

✅ Modular Design for Flexibility

  • Standard Configuration: Features single-row layout compatible with 35mm DIN rails. It easily installs 1P/2P/3P air switches, leakage protectors, fuses, etc.
  • Ample Wiring Space: Internal space for organizing busbars and ground bars, ensuring neat wiring and easy maintenance.
  • Full Series Options: Available in 4 to 36 ways to meet diverse power distribution needs for both household and industrial applications.

✅ Humanized Design for Safety & Convenience

  • Transparent Window: Allows visual inspection of switch status without opening the box, enabling quick troubleshooting.
  • High-Altitude Warning: A prominent WARNING label on top reminds users of high-voltage risks to prevent accidental contact.
  • Cable Entry Points: Pre-drilled holes on both sides with waterproof cable glands (PG heads) ensure reliable sealing for incoming and outgoing cables.
  • Surface-Mount Installation: Wall-mounted design for easy installation and maintenance.

✅ Safe & Reliable Performance

  • High Insulation: Excellent insulation resistance (≥100MΩ) to prevent electric shock.
  • Fast Tripping: Quick response to short circuits with built-in fuses and circuit breakers to prevent fires and equipment damage.
  • Specialized Configurations: Supports optional Surge Protective Devices (SPD) and anti-reverse diodes, making it ideal for PV DC combiner applications.

3. Technical Specifications

Parameter Detail
Model HA
Number of Ways 4、8、12、18、24、36 Ways (Single Row)
Rated Voltage AC 220V/400V, DC 1000V (PV Compatible)
Rated Current DC ±10A-32A per circuit (Depends on installed components)
Protection Grade IP66 (Dustproof & Heavy Water Jet Resistant)
Material Body: ABS Engineering Plastic; Cover: PC Polycarbonate
Operating Temp. -25°C ~ +60°C
Humidity ≤95%, non-condensing, no corrosive gases
Max. Altitude ≤2000m
Insulation Resistance ≥100MΩ
Installation Type Surface/Wall-Mounted
Rail Type Standard 35mm DIN Rail
Standard Config. Fuse, Circuit Breaker, SPD, Anti-Reverse Diode (Optional)

4. Structure & Configuration

🔧 Core Components

  1. Main Enclosure: High-strength ABS body for durability and corrosion resistance.
  2. Transparent Cover: PC viewing window with a secure sealing mechanism.
  3. Sealing Ring: High-quality silicone gasket to maintain IP66 standards.
  4. DIN Rail: Pre-installed standard rail for easy component mounting.
  5. Cable Glands: Heavy-duty waterproof connectors for cable entry/exit.
  6. Locking Buckles: Green, easy-to-use latches for secure closure.

📦 Optional Accessories

  • DC/AC Fuses
  • Circuit Breakers (Switches)
  • Surge Protective Device (SPD / Lightning Arrester)
  • Anti-Reverse Diodes (For PV parallel circuits)
  • Neutral Busbar / Ground Busbar
  • Waterproof gland
  • Photovoltaic connector

5. Applications

  • Residential Use: Distributed PV systems for villas, self-built houses, and charging pile power distribution.
  • PV Power Stations: DC combiner boxes at the front end of string inverters in solar farms.
  • Outdoor Scenarios: Construction site temporary power, street lighting control, landscape lighting, EV charging stations.
  • Industrial Settings: Workshops, warehouses, sewage treatment facilities, and other harsh environment systems.
  • Specialized Areas: Communication base stations, security monitoring, ships, and airports requiring waterproof power distribution.

6. Full Series Selection Guide

Model Ways Suitable Scenarios
HA-4WAY 4 Small households, single EV chargers
HA-8WAY 8 General households, small PV systems
HA-12WAY 12 Standard households/commercial use, PV combiner boxes
HA-16WAY 16 Large households, commercial distribution
HA-24WAY 24 Industrial applications, large PV power stations
HA-36WAY 36 Large ground power station

7. Installation Instructions

  1. Preparation: Ensure the installation location is dry and clear. Always perform work with the power OFF.
  2. Mounting: Fix the box to the wall or bracket using expansion screws.
  3. Cable Installation: Thread cables through the waterproof glands and secure the glands tightly.
  4. Component Installation: Install circuit breakers and protectors on the DIN rail and complete the wiring.
  5. Finalization: Close the cover and fasten the latches to complete installation.
  6. Maintenance: Regularly check the sealing ring and cable ports for damage. Keep the transparent window clean.
Note: Never open the box with power connected. Avoid using in flammable and explosive environments.

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