PROJOY PEFS-EL40H-4 (MC4) / 2 strings safety fire switch

Fire safety switch 2 strings for PV PV installations PEFS-EL40H-4 2MPPT PROJOY - designed for safe and sudden power cut-off in photovoltaic installations in case of failure and / or fire.The switch is designed to be mounted on two strings.In the event of a fire, firefighting teams can be exposed to serious hazards due to the current flowing through the PV system (even with the DC switch between the inverter and the panels turned off).If firefighters have turned off alternating current (AC) (e.g. Wp-1s alarm switch) before extinguishing the fire, the PEFS series safety switch will detect a mains failure and automatically turn off the isolation switch after 5 seconds.The switch should be mounted close to the photovoltaic panel, which creates a safe environment for firefighters - reduces potential damage and ensures the safety of the photovoltaic system.The circuit breakers can be used directly with photovoltaic panels.The PEFS series resets automatically when AC power is restored - the circuit breaker will connect the circuit without user intervention.

The circuit breakers are equipped with a PEDS switch, it is the most popular DC switch for photovoltaic installations in the world.The reaction time of the switch mechanism is only 5 milliseconds, which ensures very fast arc extinguishing. PEDS is considered by many PV inverter manufacturers to be the best and preferred DC switch.

Technical parameters:

• series and type: Fire safety switch 2 strings for PV PV installations PEFS-EL40H-4 2MPPT PROJOY </ li >
• string voltage (Vdc): 300 ~ 1500V DC
• string current (A): 40A
• number of strings: 2
• switch of wiring: 4
• nominal current: 30 mA
• operating voltage: 100 V AC - 270 V AC
• nominal voltage: 230 V AC
• < li> starting (charging) current: medium 100 mA
• power switch: max. 300 mA
• maximum operating temperature before automatic shutdown: + 70oC
• feedback contact: 24 V DC - 300 mA max.
• operating temperature range: -20oC - + 50oC
• storage temperature range: -40oC - + 85oC
• protection level: IP66
• protection level: class II
• certificates: CE
• DC switch disconnect according to: EN 60947-1 & amp; 3
• number of operations: 10000
• < li> number of load operations (PV1): & gt; 1500