Fire Safety Switch PROJOY PEFS-EL50H-8 – P2 (MC4) – 4 strings

The PROJOY PEFS-EL50H-8 fire safety switch is an isolating DC disconnect designed for photovoltaic installations, allowing for quick and safe disconnection of the DC voltage in events requiring AC power shutdown. The device is used to protect rescuers and limit damage to the PV system.

Manufacturer: ProJoy Electric Co., Ltd. (XinTang Industrial Zone, PingJiang District, Suzhou, China). ProJoy is a supplier of DC switches for PV, offering products with international certifications and a proprietary physical isolation solution with arc extinguishing without the need for remote communication.

Electrical Parameters

• String Voltage (Vdc): 300 ~ 1500 V
• Rated Current (50H variant): 50 A
• Number of Inputs/Strings (variant -8): 8
• AC Control Voltage: 100 Vac - 270 Vac (nominally 230 Vac)
• Trigger Current (AC): 30 mA; average 100 mA; max 300 mA
• Auxiliary Control Voltage: 24 Vdc, max 300 mA
• Operating Temperature Range: -20 °C to +50 °C
• Maximum Temperature Before Automatic Shutdown: +70 °C
• Standards and Certifications: CE; EN 60947-1 & 3; UL508I; GB14048.3 (category DC-PV2 / DC-PV1)
• Number of Operations: 10000 mechanical operations; >1500 operations under load (PV1)

Mechanical Parameters

• Enclosure Protection Degree: IP66
• Protection Class: II
• Enclosure: plastic, sealed, equipped with a breather valve to prevent condensation
• Enclosure Dimensions (technical drawing): front width 204.0 mm, height 170.0 mm (dimensions provided in dimensional drawings)
• Cover Dimensions (drawing): 250 x 220 mm (cover) with marked mounting holes
• Mounting Accessories: optional M12 cable gland kits, BC03D connectors or MC4 connector kits