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The APsystems RSD-D-20 is a cutting-edge solar power system component designed to enhance safety and compliance in solar applications. This innovative device meets both NEC 2017 and 2020 requirements, ensuring rapid shutdown capabilities during emergencies or maintenance. With its robust design and dual-input channels, the RSD-D-20 significantly elevates the safety protocol for solar energy systems, providing both installers and users peace of mind.
The RSD-D-20 effectively meets the NEC standards, offering reliable rapid shutdown of the solar system when the signal from the Transmitter is absent. This feature is essential for maintaining safety and compliance with regulatory requirements, making it an indispensable component for any solar setup.
This model features a dual-input channel that continuously receives heartbeat signals from the APsmart Transmitter, ensuring normal operation even in challenging conditions. Its redundancy contributes greatly to the reliability of the overall system.
With an input operating voltage range of 8-65V per channel and a maximum input voltage of 80V, the RSD-D-20 accommodates various solar installations, making it versatile and adaptable to different environments.
Engineered for durability, the RSD-D-20 can operate in ambient temperatures ranging from -40°F to +167°F (-40°C to +75°C). Its NEMA Type 6P/IP68 enclosure rating provides excellent protection against environmental factors, ensuring long-term performance and reliability.
Compliant with PLC communication standards and safety regulations such as UL1741 and CSAC22.2 No. 330-17, the RSD-D-20 exhibits high compatibility with various inverter systems, enhancing ease of integration into existing solar setups.
The RSD-D-20 functions as a safety mechanism within DC MLPE solar power systems. Its role is to execute a rapid shutdown in the event of an emergency, ensuring that the system can be safely maintained or serviced without risking operator safety. The continuous monitoring of the transmitter signal allows for quick adjustments when required.
This component's ability to monitor the heartbeat signal from the APsmart Transmitter enables regular checks on system integrity, ensuring that rapid shutdowns can reliably occur when needed.
When the signal from the transmitter is lost, the system shuts down immediately. Users can also manually trigger a rapid shutdown through a dedicated transmitter breaker switch, providing control in critical situations.
Thanks to its design specifications, the RSD-D-20 can seamlessly integrate with existing power systems, thus enhancing overall performance without necessitating significant changes to current setups.
| Model | RSD-D-20 |
| Input Operating Voltage Range | 8-65V per channel |
| Max Input Voltage | 80V |
| Maximum Continuous Input Current | 20A per channel |
| Maximum Short Circuit Current | 25A |
| Output Operating Voltage Range | 16-130V |
| Max Output Voltage | 160V |
| Maximum Continuous Output Current | 20A |
| Maximum System Voltage | 1500V |
| Operating Temperature Range | -40°F to +167°F (-40°C to +75°C) |
| Enclosure Rating | NEMA Type 6P/IP68 |
| Cable Length | Input 500mm / Output 2200mm |
| Connector Type | Stäubli MC4 PV-KBT4 & KST4 |
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