Rapid Shutdown Compliance: What Solar Installers Need to Know

If you’re a solar installer, you know the drill: codes change, standards tighten, and you’re expected to keep up. One of the biggest shifts in recent years? Rapid shutdown requirements. Miss the mark, and your installation could be red-tagged, delayed, or even denied inspection.

In this guide, I’ll break down exactly what the NEC 2023 rapid shutdown rules require, how module-level RSDs fit into the picture, and why Fonrich should be your go-to for hassle-free compliance.

NEC 2023: What’s New?

The National Electrical Code (NEC) has been gradually tightening rapid shutdown rules since 2014. With the 2023 update, the requirements are stricter than ever. Now, nearly all rooftop PV systems must include rapid shutdown functionality that brings conductors to a safe voltage within seconds of activation.

And here’s the key: it’s not enough to shut down at the inverter. The code now specifies module-level control—meaning power must be cut close to or at the panel itself.

Why Installers Can’t Ignore This

Let’s be real: compliance isn’t optional. Inspectors are getting stricter, insurance companies are asking more questions, and customers are more informed than ever. Failing to meet rapid shutdown standards can lead to:

• Failed inspections
• Costly rework
• Liability risks
• Damage to your reputation

In short, getting this wrong isn’t worth the risk.

Fonrich Makes Compliance Simple

So how do you meet the code without overcomplicating your installations? Fonrich’s rapid shutdown devices are designed for easy integration, minimal wiring, and maximum reliability. They’re compatible with most major inverters and monitoring systems, and they’re fully certified to meet NEC 2023 standards.

Plus, Fonrich provides training, documentation, and technical support to help you and your team stay ahead of the curve.

Installer Success Story

A California-based installer shared that after switching to Fonrich RSDs, their inspection pass rate jumped from 80% to nearly 100%. Why? Fewer callbacks, clearer documentation, and a product that just works. That’s the kind of partnership that grows businesses.

Conclusion: Compliance Made Easy

Keeping up with the NEC doesn’t have to be a headache. With the right tools and partners, you can meet rapid shutdown requirements with confidence—and maybe even impress your clients and inspectors along the way. Fonrich is here to help you do just that.