JMS-F SunSpec Rapid Shutdown Device

The easy module level rapid shutdown solution

TheSunSpec Certified 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 theSunSpec 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 andlabour 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. 


  • 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 theSunSpec signal for rapid shutdown  

  • Shuts down PV module wheneverSunSpec 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  

  • FullySunSpec certified solution when paired with an SMASunSpec certified inverter


Data sheet