FoxESS S-BOX Firefighter Safty Switch 2MPPT


  • The FOXESS S-BOX-2 is a switch designed to switch on and off the DC voltage that comes from photovoltaic panels.
  • The product guarantees safety by disconnecting the DC circuit during a power cut on the AC side.
  • The switch operates on the principle of switching on the DC circuit when AC power is restored.
  • This device is extremely useful during a power grid failure or in the event of a deliberate power cut to a building when there is a risk of fire.

Features of the S-BOX fire protection switch:

  • maintenance-free
  • no resetting required
  • product has a positive opinion from Fire Experts and fulfils the provisions arising from the amendment of the Building Act
  • large current carrying capacity of up to 40 A at 1000V
  • support for 2 strings (chains)
  • equipped with a set of MC4 connectors built into the device and those, to be made on the ends of the DC cables
  • fast and trouble-free installation

Technical parameters:

  • Number of strings - 2
  • Number of poles - 4
  • String voltage - 300-1500V
  • Current per string - 16-50A
  • Nominal voltage - 100Vac - 270Vac
  • Operating voltage range -. 230Vac
  • Nominal current - 30mA
  • Inrush (charging) current - average 100mA
  • Trip current - 300mA max
  • Return contact - 24Vdc - 300mA max
  • Operating temperature range -. -20°C - +50°C
  • Maximum operating temperature before automatic shutdown - +70°C
  • Air temperature range -40°C - +85°C
  • Protection level - IP66
  • Protection Class - Class II
  • Certifications - CE
  • Compliant DC disconnector - EN 60947-1&3
  • Number of operations - 10000
  • Number of operations under load (PV1) - >1500
More Information
Circuit Protection2
IP CodeIP66
Width17.50 cm
Height12.50 cm
Length/Depth29.50 cm
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