Corporate
Language
Display & Control Transmission Fire Alarms
Logo

Logo

Hot Searches

Higher Education

Higher Education

Perimeter Protection

Perimeter Protection

Network Cameras

Network Cameras

Quick Links

City Business

Traffic Management

Fire Lane Parking Detection

Newsroom

Dahua Technology Introduces APOLLO BP3EW-4G to Expand Wire-Free 4G Security Monitoring

2026-04-20

Dahua Technology Introduces APOLLO BP3EW-4G to Expand Wire-Free 4G Security Monitoring

PFM377-D4830

Overview Specifications Download Sales Enquiry
EOL
EOL
Favourite
PFM377-D4830

Special distribution box of solar power supply system

Key Points
    >The control system of the solar power supply system, used to control the charge and discharge of the small off-grid solar power system;
    >This product includes a MPPT solar charge and discharge controller, a lightning arrester, a DC circuit breaker and a distribution box, etc.
    >MPPT solar charge and discharge controller: max. MPPT tracking efficiency is up to 99%, can significantly improve the energy utilization of photovoltaic system, which is 15%~20% higher than that of traditional PWM; use advanced digital power supply technology, the efficiency of circuit energy conversion is up to 98%; support automatic identification of system voltage, current limiting charging mode, built-in over temperature protection mechanism, etc.
    >Lightning arrester: max. discharge current 20kA;
    >DC circuit breaker: high arc extinguishing ability, more safe and reliable than the AC circuit breaker;
    >Distribution box: IP54, 1.2mm thick SUS201 material, with the cooling function, when the temperature is higher than 45℃, the fan will open automatically.
Sales Enquiry
Datasheet

Specifications

Model
 DH-PFM377-D4830
Control Part
Controller type
 MPPT
System voltage
 12VDC/24VDC/48VDC Auto
Max. battery voltage
 9VDC~70VDC
Max. power point voltage range
 Battery voltage+2VDC~120VDC
Rated charging current
 30A
Rated load current
 20A
Max. capacitive load capacity
10000µF
Max. input open voltage of solar panels
150V(25℃); 135V(-25℃)
Max. input power of solar panel
400W/12VDC; 800W/24VDC; 1200W/36VDC; 1600W/48VDC
MPPT tracking efficiency
＞99%
Conversion efficiency
 ≤98%
protection
 Input power limit protection, reverse protection, overload protection, input shirt circuit protection of solar energy, load short circuit protection, anti-recoil protection at night, over-temperature protection
No-load loss
0.7W~1.2W
Communication mode
 RS232/RS485
Distribution Part
DC circuit breaker
 2P/32A/DC500V
Lightning arrester of DC power
 48VDC/20kA
Distribution box
Material
 1.2mm thick SUS201+spraying
Dimension
 600mmx400mmx226mm(23.62”x15.75”x8.9”)
Installation method
 Pole mount, Ø180mm~Ø300mm(Ø7.09”~Ø11.81”)
Color
 RAL7035
Protection degree
 IP54
Fan
 2*fans, automatic temperature control(45ºC3ºC)
Overall
working temperature
 -35℃~+55℃(-31℉~131℉)
Altitude
 ≤3km
Weight
 18.5kg(40.79lb)
Package dimension
 610mmx410mmx236mm(24”.02x16.14”x9.29”)


Dahua Partner APP

Now with a fresh new look and lots of added features. Download the app today and enjoy your all-in-one business platform at your fingertips

logo Download

Please select your question

Back to Previous Site

To ensure continuity of service, the previous version of our official website remains available. You may access it via the link provided.

Previous Version
* Limited to a maximum of 4 products
Reset
Compare