MP-20A SR20D-M-7699

Safety First, Always On

The 20A SR20D-M is engineered for maximum safety, ease of installation, and reliable operation in utility-scale and commercial rooftop PV systems. Designed for rapid shutdown, it reduces rooftop voltage to safe levels within seconds, protecting both personnel and assets while maintaining compliance with UL 3741 standards.

High Yield Protection

Safeguarding People and Assets

• Rapidly reduces PV system voltage to safe levels in emergencies.

• Supports 20s rapid shutdown and integrates Arc Fault Circuit Interrupter (AFCI) linkage.

Benefits:

• Minimizes risk of electric shock to maintenance staff or occupants.

• Protects PV modules and rooftop equipment from damage during faults.

• Ensures compliance with international safety standards.

Smart Installation & Operations

Designed for Effortless Deployment

• Patented snap-fit design allows tool-free installation in just 35 seconds, 45% faster than conventional methods.

• Simplified system design reduces the number of components by 50%, eliminating unnecessary PLC cables, hosts, and boxes.

Advantages:

• Easy, repeatable installation for large-scale PV rooftops.

• Longer lifespan due to reduced mechanical stress and fewer components.

• Minimizes human error during setup.

Reliable O&M

Simplified Maintenance

• Incorporates FHC Zero-Burn Bypass technology that limits maximum temperature to 120°C, producing 33% less heat than traditional devices.

• Ensures stable operation over 25 years with minimal maintenance.

Benefits:

• Reduces operational risks and maintenance frequency.

• Enhances system reliability under high ambient temperatures.

• Ensures longevity for commercial and industrial PV installations.

Flexible Compatibility

Adaptable to Any PV System

• Supports 450m PLC communication range for large single rooftops up to 5 MW.

• 20A current capacity for mainstream PV modules.

• Compatible with a wide range of C&I inverters, including SG150CX.

Advantages:

• Flexible integration for various system sizes.

• Future-proof for expanding PV arrays.

• Highly versatile for residential, commercial, and industrial rooftops.

Why Choose 20A SR20D-M?

• Rapid Safety Response: Cuts voltage to safe levels within seconds.

• Tool-Free Installation: Simplifies deployment and reduces labor costs.

• Long-Term Reliability: Low heat generation ensures 25-year operational life.

• Wide Compatibility: Works with multiple PV modules and inverter types.

• Easy Monitoring: Integrated with iSolarCloud for remote management.

Key Specifications

• Shutdown Output Voltage: 1 V

• Max. PV Input Current / Channel: 20 A

• Protection Standards: UL 3741 compliant

• Installation Time: 35 s, tool-free

• Communication Range: 450 m PLC

Typical Applications

• Commercial Rooftops: Rapid shutdown ensures safe maintenance.

• Utility-Scale PV Plants: Reduces risk during emergencies and maintenance.

• Residential Systems: Compatible with mainstream modules and inverters.

• High-Risk Environments: Provides added safety for workers and equipment.

FAQ – Common Questions

Q1: How fast does the SR20D-M shut down the PV system?
It reduces rooftop voltage to safe levels in 20 seconds using rapid shutdown technology.

Q2: Is installation complicated?
No, the patented snap-fit design allows tool-free installation in 35 seconds.

Q3: Can it handle large rooftops?
Yes, it supports 450m PLC communication range, suitable for PV rooftops up to 5 MW.

Q4: How long is its operational life?
With Zero-Burn Bypass technology, it reliably operates for 25 years under normal conditions.

Q5: Can it be monitored remotely?
Yes, SR20D-M integrates with iSolarCloud for full remote monitoring and control.