PV DC MCB 4P 1000V

Noark Ex9BP-4P – 4-Pole PV DC Miniature Circuit Breaker

The Ex9BP-4P series is a DC miniature circuit breaker designed specifically for photovoltaic (PV) applications and other direct-current systems that require safe, reliable overcurrent protection. Its 4-pole configuration makes it suitable for high-voltage PV strings and systems where multiple conductors must be switched simultaneously for safe isolation.

Key Features

• Purpose-built DC miniature breaker for PV installations and DC power systems.
• 4-pole configuration ensures simultaneous disconnection of all conductors.
• Engineered for modern high-voltage PV architectures and combiner box designs.
• Fast magnetic trip response for short-circuit protection.
• Thermal protection for overload conditions.
• Compact DIN-rail mounting for clean, efficient panel layouts.
• Durable housing and long mechanical life for demanding solar environments.

Typical Applications

• PV string protection and isolation.
• High-voltage DC circuits in solar combiner boxes.
• Inverter DC input protection.
• Off-grid and energy-storage DC distribution boards.
• Any system requiring coordinated 4-pole DC isolation.

Installation Notes

• Mount on standard DIN rail inside a suitable enclosure.
• Ensure correct DC polarity and wiring direction.
• Choose the appropriate Ex9BP-4P variant to match the system's string voltage and design requirements.
• Always follow SANS/IEC standards for PV and DC system installation.

The Ex9BP-4P series provides dependable DC protection and isolation for high-performance solar installations, making it a trusted choice for electricians and PV professionals.