PV Combiner Box

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PV Combiner Box
PV Combiner Box
PV Combiner Box
PV Combiner Box
PV Combiner Box
PV Combiner Box
PV Combiner Box
PV Combiner Box
PV Combiner Box
Description :

The SUNWAY Smart PV Combiner Box is an essential accessory engineered for multiple PV strings connections. Available in a flexible design with 8 or 16 optional inputs, it safely and efficiently consolidates solar generation before routing it to the inverter. The unit is housed in a robust galvanized steel enclosure and utilizes a natural convection cooling method. To maximize system oversight, it features an inbuilt smart controller for monitoring. Specifically, the monitoring function accurately tracks string current, bus voltage, breaker status, surge arrestor status, and internal temperature.

Product Description:

PV Combiner Box Specification document

Product Advantages and Features

Robust Electrical Safety:

The system delivers comprehensive protections , including 25A input fuses located on both the negative and positive poles of each string for highly effective over current protection.

 

Advanced Environmental Resilience:

Built with a galvanized steel enclosure , the unit features an IP65 protection degree for excellent environment compatibility.

 

Integrated Surge Defense:

The box is fully equipped with Type II lightning protection to shield sensitive downstream components using a PV SPD.

 

Comprehensive System Monitoring:

The inbuilt smart controller provides an extensive monitoring function that actively tracks internal temperature, bus voltage, string current, and breaker status.

 

Seamless Digital Integration:

It includes a standard RS485 communication interface , allowing operators to easily integrate the combiner box into centralized monitoring networks.

 

Flexible Installation:

It natively supports wall-mount installation and is capable of operating at an altitude of 2000m without derating.

 

Product Information Sheet

 
PV-CB8M-P
PV-CB16M-P
Input DC
Max. input voltage
1000V
1000V
Max. string Isc
20A
20A
Number of input string
8
16
Input fuse
1 on negative and positive pole of each string, 
25A, 10*38mm
1 on negative and positive pole of each string, 
25A, 10*38mm
Input cable gland
4mm-8mm cable diameter
4mm-8mm cable diameter
Input cable terminal
4mm²–6mm²
4mm²–6mm²
Output DC
Number of output
1
1
Max. output current
160A
320A
Output breaker
200A
400A
Output cable terminal
70mm2
120mm2
Output cable gland
13mm-18mm cable diameter
18mm-25mm cable diameter
General Information
Dimension (W/H/D)
600/500/172mm
600/500/202mm
Weight
22.5kg
29kg
Enclosure material
Galvanized steel
Galvanized steel
Protection degree
IP65
IP65
Operating temperature
-25°C~55°C
-25°C~55°C
Humidity
0~99%
0~99%
Altitude
2000m without derating
2000m without derating
Lightning protection
Type II
Type II
Cooling method
Natural convection
Natural convection
Mounting
Wall-mount
Wall-mount
Monitoring
String current, bus voltage, breaker status, 
surge arrestor status, internal temperature
String current, bus voltage, breaker status, 
surge arrestor status, internal temperature
Power supply
DC300V~1000V
DC300V~1000V
Power consumption
14W
14W
Communication
RS485
RS485

 

Product details image

PV Combiner Box PV Combiner Box PV Combiner Box PV Combiner Box PV Combiner Box PV Combiner Box

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