TBB PVB250-3 Combiner Box 250VDC 3 Strings with Protections

Product description

The TBB PVB250-3 250VDC 3 Strings Combiner Box with Protections is designed for off-grid solar systems operating with voltages up to 250 VDC. It incorporates 3 string inputs with 15 A fuses, a 63 A DC breaker, and SPD surge protection up to 40 kA. Thanks to its pre-installed MC4 connectors and IP54 wall-mounted enclosure, it facilitates installation and increases electrical safety from the solar array.

Main features

• Connection of up to 3 independent strings (max VOC 250 VDC)
• 15 A fuses for each string
• 63 A DC breaker (Un: 280 VDC) for quick disconnection
• Integrated SPD protection (Imax 40 kA, Up ≤ 1.4 kV)
• MC4 connectors included for quick installation
• IP54 protection rating with passive cooling

Advantages or benefits

• Prevents overcurrents and overvoltages that could damage your charge controller or inverter
• Facilitates maintenance with accessible main disconnect switch
• Reduces installation time thanks to standard MC4 connections
• High environmental resistance in rural or outdoor areas

Purpose or applications

The PVB250-3 box is optimized to work with 250 VDC MPPT solar charge controllers such as the TBB SP250-70. Ideal for off-grid installations with 3 solar strings, whether in homes, solar pumping, or professional rural installations.

Technical specifications

Compatibilities

This product is compatible with: TBB SP250-70, Riio Sun II 2 kVA 48 V, Riio Sun II 3 kVA, Riio Sun II 5 kVA, Riio Sun II 8 kVA.

TBB PVB250-3 250VDC Combiner Box is the safest option for managing 3 strings in demanding solar systems, effectively and professionally protecting your installation.