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Communication Signal for Rapid Shutdown Workgroup

How to join: You must become a member in good standing to participate in SunSpec workgroups. Apply for membership or contact Member Services for more information.

Mission Statement:

Define a simple, multi-vendor, multi-device (e.g. inverter, module, string combiner, etc.) communication interoperability specification to support NEC 2014 and NEC 2017 and UL 1741 module-level rapid shutdown requirements.

Work products: 

  • Rapid Shutdown Communication signal test specification Version 10 APPROVED
  • Communication Signal for Rapid Shutdown Specification Rev 34 APPROVED
  • Join the workgroup to view working drafts.

Editor: Larry Sherwood, Sherwood Associates

Group Leader: Larry Sherwood

SunSpec Representative: Tom Tansy

Meeting Schedule: TBA

Reference Materials: NEC 2017, UL 1741

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The SunSpec Alliance is an alliance of over 100 solar and storage distributed energy industry participants, together pursuing information standards to enable "plug & play" system interoperability. SunSpec standards address operational aspects of solar PV power and energy storage plants on the smart grid—including residential, commercial, and utility-scale systems—thus reducing cost, promoting technology innovation, and accelerating industry growth.

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