Solar Junction Box DC 4String SPD T2

The boxes are designed for use in photovoltaic installations with or without an insulated lightning protection system, also where a high IP degree of protection is required. Their design is suitable for surface mounting.

The box features:

• 4 x module chain for 4 MPPT
• 4 x DC surge arrester type 2
• Ready to connect
• Modular design
• MC4 board connections
• Degree of protection IP65
• Transparent door
• Protection class II
• Colour: white

ELECTRICAL AND MECHANICAL SPECIFICATIONS OF THE ENCLOSURE

• Model PHS 24T
• Number of modules 24
• Design in compliance with EN 60670-1, EN 62208
• Degree of protection IP65
• Protection class II
• Rated insulation voltage (Ui) 400 V AC, 1500 V DC
• 650°C glow rod test
• Impact resistance IK08
• UV-resistant YES
• Recyclable, halogen-free plastic

DC SURGE PROTECTOR USED

• Manufacturer/model PHOENIX/VAL-MS 1000DC-PV/2+V
• Surge protection Type 2
• Maximum permanent voltage UCPV 1170 V DC
• Short-circuit immunity I SCPV 2000 A
• Long-term operating current ICPV <20 uA
• Rated load current IL 80 A
• Protective conductor current IPE <=20 uA DC
• <=250 uA AC
• Standby power consumption PC <=25 mVA
• Rated discharge current (8/20) us 15 kA
• Maximum discharge current Imax (8/20) us 40 kA
• Total discharge current Itotal (8/20) us 40 kA
• Protection level Up <= 3.7 kV
• Residual voltage Ures <= 3.7 kV (at In)
• <= 3,1 kV (at 5 kA)
• <= 3,5 kV (at 10 kA)
• <= 4 kV (at 20 kA)
• <= 4.6 kV (at 30 kA)
• <= 5 kV (at 40 kA)
• Response time tA <= 25 ns
• Insulation resistance Riso <= 5 gigaohms (at 500 VDC)