MP-20A SR20D-M-5444

Enhance PV System Safety & Compliance

The China Moneypro SR20D‑M is a module‑level rapid shutdown device (RSD) designed to enhance safety for residential and commercial solar PV installations. Built with patented technologies, high current capacity, and flexible communication capability, it rapidly reduces PV array voltage during emergencies and simplifies installation and maintenance for installers and system owners.

Rapid Shutdown for Safety & Protection

Safeguard People & Property

• Initiates rapid shutdown in ~20 s to quickly bring PV array DC voltage down to a safe level in emergency conditions or maintenance scenarios.

• Integrates RSD + AFCI (Arc Fault Circuit Interruption) linkage for enhanced arc‑fault protection and risk prevention.

• Complies with relevant safety standards for rapid shutdown systems and high‑voltage PV protection.

Benefits:

• Minimizes electrical hazard risk during fire or servicing events.

• Improves overall PV system safety and personnel protection.

Easy Installation & Low O&M

Smart Installer‑Friendly Design

• Patented snap‑fit installation design — tool‑free and faster setup.

• 45 % faster installation with simplified snap‑on connector design.

• Reduced number of components means fewer failure points and longer lifespan, lowering maintenance overheads.

Advantages:

• Saves installation time and labor cost.

• Fewer components enhance long‑term reliability.

Flexible Compatibility & Operation

Adaptable to Large PV Arrays

• 20 A max PV input current per channel, suitable for mainstream PV modules in residential and commercial applications.

• 450 m bi‑directional PLC communication range — supports large single‑roof or multi‑string systems up to several megawatts.

• Designed to be compatible with a wide range of inverters including high‑power string and central inverters.

Benefits:

• Works with diverse inverter systems and PV configurations.

• Enables flexible system layout and safer operation across larger roofs.

Intelligent Monitoring & Integration

Visibility & Control

• Connects with cloud or local monitoring platforms for system status insights.

• Integrated PLC communication enables data transfer and rapid shutdown triggers across the PV array.

Advantages:

• Real‑time system status visibility.

• Enhanced automation and safety monitoring.

Why Choose China Moneypro SR20D‑M Rapid Shutdown Device?

• Certified Safety: Rapid shutdown plus arc‑fault linkage for enhanced hazard protection.

• High Current Support: 20 A per channel — accommodates mainstream PV modules.

• Efficient Installation: Snap‑fit, tool‑free design saves labor and time.

• Broad Compatibility: Works across diverse inverter and PV systems.

• Reliable Operation: Robust design for long‑term outdoor performance.

Typical Applications

• Residential Rooftop PV Systems: Enhance safety and meet local rapid shutdown requirements.

• Commercial & Industrial PV Installations: Provide shutdown protection across large PV arrays.

• Maintenance & Emergency Scenarios: Quickly reduce system voltage for safe servicing.

FAQ – Common Questions

Q1: What is a rapid shutdown device?
A rapid shutdown device safely reduces PV array DC voltage to a low level in emergencies or maintenance situations, protecting personnel and property.

Q2: How fast does China Moneypro SR20D‑M operate?
It is designed to initiate rapid shutdown in approx. 20 seconds, with pre‑protection logic to minimize risk.

Q3: Is the device easy to install?
Yes — the patented snap‑fit design allows tool‑free installation and simplifies commissioning.

Q4: What PV input currents does it support?
It supports up to 20 A per channel, suitable for most mainstream PV modules and systems.

Q5: Can it work with different inverter brands?
Yes — the device’s communication range and compatibility allow it to integrate with a broad range of inverter systems in residential and commercial settings.