Rapid Shutdown Device

Function Introduction

The JRSD-SL Series String-Level Firefighter Safety Switch stands as a paramount DC disconnect solution specifically designed for safeguarding rooftop solar systems. This innovative device ensures complete isolation of DC power when faults occur. It features proactive responses to system faults like grid AC power loss and over-temperature . Additionally, it can stably operate in harsh environments with an IP65 enclosure and boasts a plug-and-play design.

Type Introduction

Standard

The JRSD-SL Series String-Level Firefighter Safety Switch
meet
the
following
standards: IEC 60947-1,IEC 60947-3

Ensuring System's Secure Operation

Connect 2 to 10 input and output solar panel strings, with independent positive and negative poles, to the string-level firefighter safety switches. Simultaneously, connect the switches to the inverter, thereby achieving DC current isolation between the panels and the inverter.

If there occurs a fault like over temperature, it will swiftly disconnect the current. Also, when the switch detects the AC power loss, it promptly responds by disconnecting the DC side current to safeguard the equipment and the system. 

Crucial Importance of Safety Switches

Firefighter safety switches are critical components in photovoltaic (PV) systems for enhancing safety and mitigating potential hazards. In the event of an over temperature or other emergencies, they ensure that the electrical currents within the solar cell string are rapidly interrupted, reducing the risk of electrical shock and providing first responders with a safer environment. With the integration of button switches, manual shutdown in situations such as system maintenance can be realized.

Technical Data

Shutdown Mode

Overall and Installation Dimension(mm)

JRSD-SL-2

JRSD-SL-3

JRSD-SL-4

JRSD-SL-5

JRSD-SL-6/7/8/9/10