Aswich Solar PV String Disconnecting Overload Protection DC Distribution Box Junction Box Combiner Box

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Product Description

Basic Specifications
Model NO.
ECBX
Certification
ISO9001:2000, CE, LVD, EMC
Form
All-packaged Type
Operation Voltage
Low Voltage
Size
2 Unit
Application
PV System
Shell Material
PC
Protection Grade
IP65
Max Voltage
1000V
Max Current
32A/63A
Installation
Wall Mounting
Altitude
2000m
HS Code
85361000
Product Overview

The Perfect Solution for Your Self-Consumption Facilities. Find your modular PV combiner box. We offer prewired solar combiner boxes with not only string protection, surge protection and disconnection but also with additional monitoring devices. Factory-assembled combiner box solutions in multiple sizes appropriate for a single string, or up to 32 strings in 1000V and 1500VDC. They are suitable for use in residential, commercial and utility scale projects.

  • Professional PV Combiner Box: Tidied up connection and confluence of photovoltaic modules. Reduces connection to the inverter and optimizes system structure, making maintenance easier and safer.
  • Secure & Reliable Protection: Equipped with 4 pcs 15A DC fuses, a high-voltage lightning arrester, and a 500V 63A circuit breaker. Features short circuit, surge, over-voltage, and grounding protection.
  • IP65 Waterproof & ABS Shell: Dustproof and waterproof design ensures longevity. Made of high-quality ABS plastic, providing insulation and impact resistance in harsh environments.
  • Easy Installation & Wiring: Plug & play pre-connected cables save 1-2 hours of manual wiring. Includes mounting buckles and built-in ground wire connectors.
  • Extensive Application: Perfect for on-grid/off-grid solar power systems, RV solar, and home panels. Supports systems up to 720W (12V), 1440W (24V), and 2880W (48V).
Product Details
Solar PV Distribution Box
DC Combiner Box Detail 1
DC Combiner Box Detail 2
DC Combiner Box Detail 3
DC Combiner Box Detail 4
DC Combiner Box Detail 5
Manufacturing & Quality Control
Production Facility 1
Production Facility 2
Production Facility 3
Production Facility 4
Technical Specifications Drawing Product Dimensions
Frequently Asked Questions
Q1: What is the maximum output wire size for this combiner box?
The unit can handle a maximum of 58A. For output, you should use 4-6 AWG wire. Currently, the unit is fitted for 6 AWG wire, with future updates planned for 4 AWG compatibility.
Q2: Can I use this box with a 1600W system composed of 12V panels?
Yes, if you configure your panels (e.g., 4 panels in 1 string) to create a 48V combination. This works because the max current for one string in this system is 15A, which fits the cords and fuses.
Q3: Where can I get replacement 15A fuses?
The original package includes 4 spare fuses as replacements. If you need more, standard 15A DC fuses compatible with PV systems can be used.
Q4: Will this work for 12*400W panels with 3 in series (60A output)?
No, this configuration will not work because the fuses are rated at 15A. You must ensure the current per string does not exceed the fuse rating.
Q5: Is the combiner box suitable for outdoor installation?
Yes, the box features an IP65 waterproof and dustproof ABS shell, making it ideal for outdoor use in harsh environments.
Q6: What protections are integrated into this PV combiner box?
The box includes short circuit protection, lightning surge protection, over-voltage protection, over-current protection, and grounding protection.

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