Предпазен противопожарен ключ PROJOY PEFS-EL50H-8 (MC4) / /4 прашка

Fire safety switch 4 strings for PV PV installations PEFS-EL50H-8 4MPPT 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 four 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. with the Wp-1s alarm switch ) before the fire is extinguished, the PEFS series safety switch will detect a mains failure, and after 5 seconds it will automatically turn off the isolation switch.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 4 strings for PV PV installations PEFS-EL50H-8 4MPPT PROJOY </ li >
• string voltage (Vdc): 300 ~ 1500Vdc
• string current (A): 50A
• wiring switch: 8
• number strings: 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
• feedback contact: 24 V DC - 300 mA max.
• maximum operating temperature before automatic shutdown: + 70oC
• operating temperature range: -20oC - + 50oC
• storage temperature range: -40oC - + 85oC </ li>
• protection level: IP66
• protection level: class II
• certificates: CE
• DC switch disconnect according to: EN 60947-1 & amp; 3
• number of operations: 10,000
• number of operations under load (PV1): & gt; 1,500