PNI CBT-3 Three-Phase Solar System Protection Switchboard, AC DC input 4 strings, output 1 string (NIBP-CBT-3)

PNI CBT-3 is a switchboard for protection and interruption of DC and AC solar photovoltaic system with three-phase output 60A. It is designed for large-scale three-phase grid-connected PV systems to reduce cable connections between PV components and the inverter, improve reliability and ease maintenance. The combination box creates a complete solution for a photovoltaic power generation system with inverter. By using a combination box, the user can combine a certain number of PV components with the same specifications into a single component group depending on the DC input voltage range of the inverter.

Key features

• Solar input (+, -): 4 strings
• Input per string current: 15 A
• Solar input wire section: 4 mm
• DC output (solar) to inverter: 1 output
• DC output current: 60 A
• Maximum solar input voltage: 1000 V
• DC surge protector: Yes, 1 piece
• AC input: three-phase 3 wires 380-440 V
• Maximum AC input current: 63 A
• AC input section: 10 mm²
• AC surge protector: Yes, 1 piece
• Working temperature: -20°C ~ 50 °C
• Cooling: natural / passive through metal casing
• IP65 degree of protection, suitable for outdoor installation
• Metal case prevents damage from UV rays, acids, moisture, mold or rodents
• Facilitates interruption of the system and simplifies connection of wires during interventions
• Size: 440 × 175 × 335 mm
• Weight: 10.812 kg
• Gross weight: 11.13 kg, net weight: 10.03 kg
• Product dimensions: 44 × 33 × 18 cm
• Package dimensions: 53 × 45 × 20 cm
• Package weight: 11.13 kg

Specifications

• Solar input pairs (+,-): 4
• AC input voltage: three-phase 380-440 V
• Maximum input current for each string: 15 A
• Maximum AC input current: three-phase 63 A
• Safety current for each string: 15 A
• AC output cable size: 10 mm²
• Input cable size for each string: 4 mm²
• AC surge protector: Yes
• Output pairs (+,-): 1
• Maximum three-phase AC output current: 63 A
• Output cable size: 12 mm²
• Working temperature: -20°C ~ +50 °C
• DC interrupting current: 63 A
• Cooling method: naturally
• Maximum solar input voltage: DC 1000 V
• Earthing cable size: 6 mm²
• DC surge protector: DC 1000 V
• Size: 440 × 380 × 170 mm
• Maximum DC output current: 60 A
• Weight: 10.2 kg