
SEMS+
Smart Energy Management System

Availability and compatibility are confirmed for your project. Specifications may vary by model and region.
A module-level rapid-shutdown receiver for one or two PV modules. It operates while receiving a PLC keep-alive signal and shuts down when that signal is lost or an external shutdown control is triggered. GoodWe lists SunSpec certification and NEC 2017/2020 compliance. Regional availability and compatibility must be confirmed before ordering.
| Product range | Rapid shutdown device for 1/2 modules |
|---|
| Specification | Value |
|---|---|
| Model | GR-B2F-20 |
| Mode of Communication | PLC |
| Operating Temperature Range (°C / °F) | -40 ~ +85°C (-40 ~ +185°F) |
| Ingress Protection Rating | IP68 / UL Type 6P |
| Security Certification | NEC 2017 & 2020 & 2023 (690.12); UL1741; CSA C22.2 No. 330; IEC / EN62109-1 |
| Dimension (W × H × D mm / in) | 132 × 52 × 23 mm (5.20 × 2.05 × 0.91 in) |
Contact our team to confirm the full specification and installation requirements.
Official GoodWe product information ↗ · Source checked: Oct 13, 2026
Manufacturer catalogue for reference. Tarkeez confirms local availability, regional model specifications and compatibility before ordering.

Smart Energy Management System
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Energy monitoring software, communications equipment, metering and system accessories.