JMS-F SunSpec Rapid Shutdown Device - The easy module level rapid shutdown solution
SunSpec Rapid Shutdown Device

SunSpec Rapid Shutdown Device Where to Buy

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.


  • 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

Technical Information
SunSpec Certified Rapid Shutdown Devices
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We will be happy to advise you
on your PV projects.

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