DC Direct Current Protection Board

DC Direct Current Protection Board

Features:
• Number of inputs: 4 inputs for connecting photovoltaic strings.
• Operating voltage: Up to 410 volts DC (open circuit voltage).
• Operating current: Up to 13 amps per input.
• Surge Protection: Operates at 415 volts DC.

Main components:
1. Fusible double pole fuses (16A DC) – For protection against overloads and short circuits.
2. Two-pole arrester groups (415V DC) - For protection against overvoltage, with automatic diversion of excess voltage to earth.
3. Two-pole automatic fuses (25A DC) - Automatic shutdown in case of overload.
4. Ground Bus - Provides secure system grounding.
Working principle: In events such as thunderstorms, when the voltage in the photovoltaic wires exceeds 415V, the arresters instantly connect the positive and negative wires to ground. This causes the fuses to trip, disconnecting the connection between the inverter and the strings, providing protection to the inverter input and connected devices.
Compatibility: The panel is ideal for photovoltaic systems with inverters from brands such as Growatt, Deye, SAJ, as well as others with MPPT inputs, maximum current up to 22 amps and voltage up to 500 volts.
Application: Especially suitable for systems with inverters such as the Growatt SPF6000ES Plus, which have two MPPT inputs, protecting each one individually.

The panel offers reliable and effective protection for your PV system, ensuring trouble-free and safe operation of the inverter and connected devices.