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Smart Safety Protector (RSD) - TT Series
Fonrich Rapid Shutdown FR-PVMS-TT Series offers a versatile solution for dual-module solar setups, combining safety, intelligence, and flexibility. Like other models in the lineup, it meets NEC 2017–2023 and UL standards, includes automatic protection mechanisms, and supports long-distance PLC communication. It is fully compatible with monitoring systems for module-level data visualization, fault detection, and performance analytics.
FR-PVMS-TTCx
Dual 70V inputs, 20–23A current range. Supports parallel connection of two PV modules per unit. Up to 1600m communication loop with PLC transciever accessories.
FR-PVMS-TTQx
The FR-PVMS-TTQx surpasses the FR-PVMS-TTCx with enhanced functionalities: rapid address configuration, next-gen module-level arc protection, and poor plug contact detection.
Product Advantages
Automatic Protection/Manual Rapid Shutdown
Automatic protection or manual shutdown, to ensure maintenance and fire safety
Module-Level Arc Protection
Arc Fault Detection: series, parallel arc. Quickly extinguish the arc, effectively preventing the fire accident
1600m PLC Communication
Supports super-long communication distance
Supports Remote Data Monitoring
Snapshots include voltage, current, power, power generation, IV working
Technical Parameter
Model
FR-PVMS-TTCx / TTQx
Number of Module
1 For 2
Max. Input Operating Voltage
70 V × 2
Dimension
120×68×26 mm
Max. Input/Output Current
20 A ~ 23 A
Safety Compliance
NEC 2017, 2020 & 2023 (690.12) ; UL 1741; UL 3741
FR-PVMS-TT Series Comparison
Rapid Shutdown Technical Specifications and Features Overview
FR-PVMS-TTQx is an excellent choice for cost-sensitive, space-saving deployments that still demand high safety and intelligence. Compared to the TTCx series, the TTQx models also offer rapid address configuration, second-generation module-level arc fault protection, and plug contact failure detection.
| Parameter Name | FR-PVMS-TTCB | FR-PVMS-TTQB | FR-PVMS-TTCC | FR-PVMS-TTQC |
|---|---|---|---|---|
| Maximum Input Voltage | 70 V *2 | 70 V *2 | 70 V *2 | 70 V *2 |
| Number of Modules | 2 | 2 | 2 | 2 |
| Max. Input/Output Current | 20 AMP | 20 AMP | 23 AMP | 23 AMP |
| Max. Short Circuit Current | 25 AMP | |||
| Arc Detection Feature | - | Module-level Arc Fault Shutdown | - | Module-level Arc Fault Shutdown |
| Safety Compliance | All models comply with NEC 2017, 2020 & 2023 (690.12); UL 1741; UL 3741 safety standards | |||
| Maximum System Voltage | 1500 Vdc | |||
| IP Rating | IP68 | |||
| Operating Temperature | -40 to +85 °C | |||
| Communication Protocol | Power Line Commnication (PLC)，Max.Cable Loop Length 1600 Meters | |||
| Monitoring Platform Features | Module-level Asset Management, 2D & 3D Data Display, Multi-module Comparison, Real-time Status, Energy Management, Smart Fault Analysis | |||
Rapid Shutdown Device Wiring Diagram
| FR-PVMS-TTCB | FR-PVMS-TTQB | FR-PVMS-TTCC | FR-PVMS-TTQC |
Fonrich RSD Wiring Method for Odd/Even Number of Modules
For an odd number of components, use the following wiring method.
For an even number of modules, use the following wiring method.
Related Solutions
1st Floor, Building 2, S&T Innovation Building, No. 1588 Lianhang Road, Minhang District, Shanghai
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