| Customization: | Available |
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| Type: | Ultrasonic Sensor Switch |
| Principle: | Pyroelectric |
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Module-Level Rapid Shutdown is a safety feature for photovoltaic (PV) systems that quickly de-energizes the DC conductors of individual solar panels in the event of an emergency, such as a fire or utility grid outage. This helps to protect firefighters and other first responders from electrical hazards while working on or near a solar array.
How MLRSD Works
MLRSD systems typically consist of small electronic devices, called rapid shutdown devices (RSDs), that are installed on the back of each solar panel. These RSDs are connected to the panel's DC output and are controlled by a central module or inverter. In the event of an emergency, the RSDs can be activated to quickly reduce the voltage on the panel's DC conductors to a safe level, typically around 30 volts. This can be done within 10 seconds or less.
Key Features
Product details
| Curent rating | 15:15A | 21:21A |
| Communication | P:PLC | W:Wifi |
| PV Input | S:Single | D:Dual |
| Installation mode | S:Screw type | C:Clip type |
| Maximum Allowed Input Voltage | 80V |
| Maximun Output Voltage | 80V |
| Number of connectable panels | 1/2 |
| Maximum input current | 15A / 21A |
| Maximum short circuit current | 15A / 21A |
| Maximum system voltage | 1000V(1500 optional) |
| Operating temperature | Negative 30-80oC
(automatically shut down if over 85oC) |
| Operating environment temperature | Negative 30oC~+55oC |
| Supply voltage | PV panels |
| Protection level | IP68 |
| Fire-proof level | UL94-V0 |
| Humidity | 0%~90% at 20oC |
| Interface | MC4 |
| Warranty | 10 Years |
| Panel cable length | 280±10mm |
| String cable length | 1280±10mm |
| Communication | PLC |
| Standards compliant | UL 1741/NEC 2017 690.12 |
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