Photovoltaic DC Fault Arc Protection Control Box
Advanced Fire Prevention & Safety for Photovoltaic Systems
Response within 12 hours, tailored solutions provided.
1.Product Introduction
The Photovoltaic DC Fault Arc Protection Control Box is designed to detect and mitigate series DC fault arcs within photovoltaic string circuits. By identifying and interrupting potential hazardous arcs, it effectively prevents fire risks, ensuring safety in solar power stations.
✅ Key Applications:
- Centralized, distributed, and residential solar PV power stations
- MC4 connector DC arc protection
- Systems operating at up to 1500V DC
2. Key Features
🔹 Multi-circuit protection: Supports up to 28 individual PV string circuits
🔹 AFCI (Arc Fault Circuit Interrupter) Technology: Detects and cuts off DC arcs in real-time
🔹 High Sensitivity & Accuracy: Independent arc fault detection for each circuit
🔹 Alarm System: Sound & light alarm, plus manual mute function
🔹 Remote Monitoring & Communication: RS485 communication or two-wire connection
🔹 Self-checking function: Ensures ongoing protection reliability
🔹 IP65-rated stainless steel enclosure: Dustproof, waterproof, and corrosion-resistant
🔹 Flexible Installation: Wall-mounted, works with or without a DC combiner box
🔹 Auto-reset mechanism: Recovers operation after arc clearance
3. Technical Specifications
Why Does Solar System Need AFCI Protection?
1.What is an AFCI and Why is it Important?
An AFCI (Arc Fault Circuit Interrupter) is a smart safety device that detects and stops dangerous electrical arcs before they cause fires.
💡 Imagine this:
- Over time, wires wear out or loosen, especially in solar panel installations.
- These loose connections can create sparks (arcs), which heat up to 3000°C, enough to start fires! 🔥
- A traditional circuit breaker CANNOT detect these dangerous arcs.
- AFCI protection automatically shuts down faulty circuits, preventing disasters.
2.Why Do Solar Systems Need AFCI?
An AFCI (Arc Fault Circuit Interrupter) is a smart safety device that detects and stops dangerous electrical arcs before they cause fires.
💡 Imagine this:
- Over time, wires wear out or loosen, especially in solar panel installations.
- These loose connections can create sparks (arcs), which heat up to 3000°C, enough to start fires! 🔥
- A traditional circuit breaker CANNOT detect these dangerous arcs.
- AFCI protection automatically shuts down faulty circuits, preventing disasters.
3. How Our Product Works
Without AFCI Protection:
- Arc faults go undetected, potentially causing fires
- No alarm or warning system
- Requires manual inspection to find issues
With Our AFCI Protection:
- Instant arc detection → Shuts off the faulty circuit automatically
- Built-in sound & light alarms → Alerts operators in real time
- Remote monitoring capability → Check system status from anywhere
- Self-resetting function → Automatically restores power after fixing the issue
FAQ Section：
Q1: What makes this different from a regular DC combiner box?
A1:
Ours actively detects DC arcs, whereas normal combiner boxes only distribute power.
Q2:How do I know if it’s working?
A2:
The box has alarm indicators, plus RS485 remote monitoring if connected.
Q3: What happens if an arc is detected?
A3:
The system shuts down the faulty circuit and automatically restores operation if safe.
Q4: Can I retrofit my existing solar system with this?
A4:
Yes! This box is designed for both new and existing solar installations.
Why Choose Our AFCI DC Protection Box?
Pioneering Technology
One of the first companies in China to research and develop fault arc protection for photovoltaic systems.
Prevents Expensive Downtime
Stops arc faults before they cause significant damage.
Works with ALL PV systems
Compatible with both on-grid and off-grid setups.
Easy Installation
Plug-and-play design with MC4 connectors, ensuring a hassle-free setup
