The APsystems / APsmart RSD-S-PLC-20A is a next-generation module-level rapid shutdown device designed to meet modern North American solar safety requirements. This updated 20A version replaces previous 15A models, providing higher current handling to support today’s larger, high-output solar modules. Engineered with PLC communication, the device maintains normal operation through a continuous transmitter heartbeat signal and executes rapid shutdown when the signal is absent. Designed to meet NEC 2017, 2020, and 2023 (690.12) requirements, the RSD-S-PLC-20A also complies with SunSpec rapid shutdown standards. With a compact, weather-resistant NEMA Type 6P / IP68 enclosure, it is built for long-term rooftop reliability in demanding environments. Compatible with a wide range of residential and commercial PV systems, this 20A rapid shutdown unit helps installers future-proof solar projects while improving code compliance and system safety.
KEY FEATURES • Updated 20A model replacing previous 15A rapid shutdown versions • Meets NEC 2017, 2020 & 2023 rapid shutdown requirements (690.12) • SunSpec compliant PLC communication platform • Rapid shutdown triggered when transmitter signal is absent • NEMA Type 6P / IP68 enclosure for outdoor durability