Rapid Shutdown Device

• Features and Benefits
• Over-temperature protection (85°C)
• IP66 aluminium enclosure
• One, two, three or four string models available
• Emergency shutdown button for rapid disconnect
• Includes: AC connector, wall fixings and MC4 connectors
• If a firefighter disconnects the AC power to the home, the switch will open the circuit and disconnect the DC power coming from the panels off the roof.

As soon as a firefighter shuts down the main AC circuit, the SKS/SISOH will detect this. If this power down situation lasts longer than 5 seconds, the SKS/SISOH will automatically switch to the OFF position. Since the SKS/SISOH is located close to the PV modules, the high voltage DC current from the PV modules will be completely isolated, which leaves a safe situation for the firefighters when fighting a fire in the commercial or residential building.