FoxESS S-BOX Firefighter Safety Switch (2 MPPT, 50 A)

The FoxESS S-BOX firefighter safety switch is designed to protect PV installations equipped with 2 strings up to 1500 Vdc. The device features a motor-driven switch and an automatic shutdown function at 70 °C.

The FoxESS S-BOX firefighter safety switch is a protective device for photovoltaic systems, supporting currents up to 50 A per string. The IP66 plastic enclosure is equipped with a condensation drain valve and MC4 connectors. The switch features a motor drive and an automatic disconnection mechanism that shuts down the installation when the temperature reaches 70 °C.

Key features

• Supports up to 2 PV strings
• Maximum string voltage of 1500 Vdc
• Automatic installation shutdown at 70 °C
• IP66 enclosure protection rating with a built-in condensation drain valve
• MC4 connectors for easy wiring

Technical data

Number of strings	2
Number of poles	4
String voltage	300 - 1500 Vdc
Current per string	16 - 50 A
Nominal supply voltage	230 Vac
Maximum operating temperature before shutdown	+70 °C
Operating temperature range	-20 °C to +50 °C
Protection rating	IP66
Net thickness	107 mm