Solar Disconnect Box – Reliable PV Safety Solution
PV Disconnect Box
Key Features Of Disconnect Box
Application
-
Emergency Shutdown
-
System Maintenance and Servicing
-
Meeting Electrical Code Compliance
-
Isolating the Array
About
The Junda Disconnect Box is compliant with NEC 2017/2020
and is used to disconnect inverter input circuits; circuit breake
r rating 400A or 500A can be customized to fit the solar cust
om's specific needs. Disconnect Box can service a single inver
ter with one input and help meet NEC disconnect servicing
requirements.
NEMA 4X enclosure ratings, meeting the outdoor installation and usage requirements. Installation and maintenance simple,
convenient, it has a long service life.
Features
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400A or 500A, 1500V load breaker switch
-
Plated bus bars rated for 90°C, Cu/Al
-
Breather vent reduces internal condensation
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Safety insulation shield covers all live components
-
Designed for ease of cable installation
-
1500V - Specific PV SPD, Type II
-
NEMA 4X lockable enclosure
-
Standard 5 - year warranty
-
Compliant with NEC 2017/2020
-
Meet UL1741 standard/compliance
Flexible
-
Pre - installed input/output/grouding
-
glands
-
Pre - installed breather valve
-
Pre - installed mounted brackets
-
Output Cu/Al bus bars: cable crosssection area 500~1000AWG/kcmil,Easy 2 - hole output plug accessDual output lug（options）
TYPE
MODELS | JD-PVHC-8 | JD-PVHC-10 | JD-PVHC-12 |
|---|---|---|---|
Maximum system voltage | 1500 V dc | 1500 V dc | 1500 V dc |
Maximum fuse | Up to 65A | Up to 65A | Up to 35A |
Maximum circuit breaker rating | 400A (external handle) | 500A (external handle) | 500A (external handle) |
Number of Dc input circuits | 8 | 10 | 12 |
Input cable | 1 ~ 8AWG | 1 ~ 8AWG | 1 ~ 8AWG |
Output cable | 2* (1*500 ~ 800) AWG/kcmil Cu or Al | 2* (1*800 ~ 1000) AWG/kcmil Cu or Al | 2* (1*800 ~ 1000) AWG/kcmil Cu or Al |
Grounding cable | 1/0 ~ 6AWG | 1/0 ~ 6AWG | 1/0 ~ 6AWG |
SPD | Type ll, max: 40KA; limp: 6.25KA, Uc: 1500V | Type ll, max: 40KA; limp: 6.25KA, Uc: 1500V | Type ll, max: 40KA; limp: 6.25KA, Uc: 1500V |
Enclosure | NEMA 4X | NEMA 4X | NEMA 4X |
Maximum air ambient | 50℃ | 50℃ | 50℃ |
Enclosure size (inches, W*H*D) | 28”*28”*10”（a） | 36”*28”*10”（a） | 36”*28”*10”（a） |
Weight (pounds) | 90lbs | 90lbs | 100lbs |
Factory-Direct Solar Disconnect Box Supplier China
Disconnect Box - Crucial Safety Feature, Enhanced System Protection, Simplified Maintenance, Meeting Code Requirements
Supply Chain & Global Delivery
We understand the importance of timely component delivery for large-scale solar projects in the United States, Germany
JUNDA-SOLAR Advantage
As a direct factory and supplier, we maintain full control over quality from raw materials to final assembly
Technical Specifications
Our DC 1500V Disconnect Box is engineered with a range of technical features designed for peak performance
High-Performance
Our products are built to withstand diverse climatic conditions and international safety standards, ensuring reliable
Choose JUNDA-SOLAR
We are dedicated to providing our global clients, especially in the US, Germany, with superior photovoltaic solutions
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Q1: What is a PV Disconnect Box?
A PV Disconnect Box is a manually operated switch that provides a safe and accessible way to isolate the photovoltaic (PV) array from the rest of the solar energy system. It serves as a crucial point of control, allowing for a complete shutdown of DC power from the solar panels.
Q2: Why is a PV Disconnect Box a mandatory component for my solar project?
The PV Disconnect Box is a non-negotiable safety component mandated by most national and local electrical codes. Its primary purpose is to provide a means for first responders and maintenance personnel to quickly de-energize the solar array in an emergency, ensuring their safety and protecting the system from damage.
Q3: What is the difference between a disconnect box and a combiner box?
A disconnect box is a simple on/off switch for the entire solar array. A combiner box consolidates the power from multiple solar strings and provides overcurrent protection. While some combiner boxes have integrated disconnect switches, the standalone disconnect box is often required to be located in an accessible, specific location for safety and code compliance.
Q4: How does a disconnect box simplify maintenance and troubleshooting?
By using the disconnect switch, technicians can safely isolate the solar panels from the inverter and other electrical components. This allows them to perform routine maintenance, diagnose faults, or replace equipment without the risk of electrical shock, which is essential for professional and secure servicing.
FAQ
Q5: What safety standards does the DC 1500V Disconnect Box comply with?
The Disconnect Box must comply with several international safety standards such as IEC 60947, UL 98, and NEC (National Electrical Code), which regulate the safety, performance, and installation of electrical disconnects for photovoltaic systems.
Q6: How does the Disconnect Box help with system protection?
The Disconnect Box protects the system from electrical faults by providing an easy means to isolate the solar array. It also ensures the protection of cables and other electrical components by preventing overloads and short circuits.
Q7: What type of environment is the DC 1500V Disconnect Box designed for?
These disconnect boxes are typically designed for outdoor use and are weather-resistant. They come with IP65 or higher enclosure ratings, ensuring they can withstand dust, moisture, and extreme temperatures.
Q8: Can the DC 1500V Disconnect Box be integrated with other solar system components?
Yes, the Disconnect Box is typically integrated with combiner boxes, inverters, and other balance of system (BoS) components. It can be installed as part of a complete solar system to ensure proper system operation and safety.
WHY JUNDA
A Different Approach, Using a New Method of Manufacturing
Our Factory
At our factory, operational excellence isn't just a slogan, it's the way we work. We're constantly striving to improve every aspect of our production process, from material selection to final assembly. By eliminating waste and focusing on efficiency, we ensure we're delivering the highest quality PV harnesses while maximizing productivity.
COLLABORATION
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