Bringing the ultimate in safety
to every installation
Take your solar system safety to the next level with module-level monitoring and shutdown
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The fastest way to
de-energize your solar system
Even when the power is cut, residual energy is a major hazard to anyone working with your string inverter installation – from maintenance teams to firefighters. Our rapid shutdown device automatically reduces voltages to safe levels when power is interrupted. It’s fast, simple, and compliant with robust standards like NEC 2017/2020 and SunSpec.
Maximize stability and performance with
module-level monitoring

Our rapid shutdown device also brings module-level monitoring to your solar installation. It’s an extremely convenient way to track performance in real time, right down to individual components and solar panels. There’s no need to physically check panels on site to find the cause of performance problems.  Just remotely monitor your individual panels and get up-to-the-minute data.

As a result, you can identify issues faster, save time finding the real cause of problems, and resolve these problems before they escalate.

Endless compatibility

Designed for compatibility, our rapid shutdown devices can de-energize even the most powerful panels. Whatever the size of your implementation, we’ll help you maximize safety.

Hoymiles rapid shutdown devices aren’t just for Hoymiles inverters. We support connectivity with inverters from every leading manufacturer, so you can make any installation safe and compliant.

Streamlined installation
Adding a rapid shutdown device to your solar system couldn’t be easier. Just snap it into place on your existing inverters and instantly prepare your installation for emergencies.

We’re uncompromising when it comes to quality. As a result, our devices don’t generate excess arc noise that can influence system performance and even cause unexpected shutdowns.
Meet our rapid shutdown device family

HRSD-1C

Function
Rapid Shutdown

Used with
Features
  • Connects to one panel
  • Module-level rapid shutdown
  • SunSpec Certified
Learn more

HRSD-2C

Function
Rapid Shutdown

Used with
Features
  • Connects to one panel
  • Module-level rapid shutdown
  • SunSpec Certified
Learn more

HRSD Plus-1C

Function
Rapid Shutdown
Monitoring
Used with
DTL
Plus/DTL Plus-Kit
Features
  • Connects to one panel
  • Module-level rapid shutdown
  • Module-level monitoring
  • SunSpec Certified
Learn more

HRSD Plus-2C

Function
Rapid Shutdown
Monitoring
Used with
DTL Plus
Plus/DTL Plus-Kit
Features
  • Connects to one panel
  • Module-level rapid shutdown
  • Module-level monitoring
  • SunSpec Certified
Learn more