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Ensure full code compliance and enhanced rooftop safety with the JMS-F SunSpec™ Compliant Rapid Shutdown Module.
Engineered for seamless integration with leading inverters such as SMA Sunny Boy, Sunny Tripower, and other SunSpec-certified equipment, this module enables rapid PV system shutdown at the module level in accordance with NEC 2017/2020 requirements.
SunSpec Certified: Fully compliant with the SunSpec Rapid Shutdown Communication Protocol, ensuring compatibility with most SunSpec-certified inverters.
NEC 2017/2020 Compliance: Meets National Electrical Code (NEC) standards for module-level rapid shutdown safety.
Plug-and-Play Installation: Simple two-wire communication setup for fast deployment with reduced wiring complexity.
High Reliability: Built for long-term durability with advanced encapsulation and weatherproof construction (NEMA 4 rated).
Versatile Design: Suitable for both residential and commercial PV systems; compatible with a wide range of module configurations.
Enhanced Safety: Enables system shutdown to below 30 V within seconds when AC power is disconnected, protecting first responders and maintenance personnel.
Wide Environmental Tolerance: Designed to operate under extreme outdoor conditions — heat, humidity, and UV exposure.
| Specification | Details | 
|---|---|
| Model | JMS-F | 
| Shutdown Type | SunSpec-based Module-Level Shutdown | 
| Input Voltage Range | Up to 1000 V DC | 
| Max Operating Current | 15 A DC | 
| Communication Protocol | SunSpec Rapid Shutdown Signal | 
| Compliance | NEC 2017 / NEC 2020 | 
| Enclosure Rating | NEMA 4 (Outdoor Rated) | 
| Operating Temperature | −40 °C to +70 °C | 
| Certifications | UL PVRSS, UL 1741 SA, SunSpec Certified | 
Residential rooftop systems
Commercial PV arrays
NEC-compliant PV retrofits and upgrades
Compatible with SMA, Fronius, SolarEdge*, and other SunSpec-compatible inverters
Approx. 120 × 75 × 30 mm (4.7 × 3.0 × 1.2 in)
Weight: ≈ 0.5 kg (1.1 lb)
The JMS-F module provides a code-compliant, inverter-agnostic solution for rapid shutdown that’s easy to install, maintain, and integrate into modern PV systems. Backed by SunSpec certification, it ensures safe, reliable, and standards-aligned operation for years of service.
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