SMA SunSpec Rapid Shutdown Device

The SunSpec Rapid Shutdown System (model JMS-F), available from SMA, is the most cost-effective and reliable solution for fulfilling NEC 2017 module level shutdown requirements. The module-level device is certified for compatibility with the SunSpec communication signal and SMA inverters, making compliance simple and easy. By using the existing DC lines between the inverter and PV array for power line communications, installation and labor are significantly reduced. No additional wires or communication equipment is needed. The solution also features up to 50% fewer internal components vs alternatives, resulting in greater lifetime reliability.

Your benefits
 
Cost-effective
Simple plug-and-play installation
No additional components necessary, reducing balance of system costs
 
Simple and robust
Power line based communication certified for compatibility with the SunSpec signal for rapid shutdown
Shuts down PV module whenever SunSpec signal is interrupted
 
Safe and certified
Certified and listed for compliance to:

UL 1741 Rapid Shutdown System Equipment
NEC 2017 690.12(B)(2) Module Level Shutdown
 
Reduced risk
Technical support from SMA’s #1 ranked service organization
Fully SunSpec certified solution when paired with an SMA SunSpec certified inverter