DC Adjustable MCCB 2P 500V 25KA

Noark Ex9MD1B-TM – DC Moulded Case Circuit Breaker

The Ex9MD1B-TM series is a compact, high-performance DC moulded case circuit breaker designed for photovoltaic (PV) and other direct-current power systems. Built for reliability and safety, it provides secure disconnection and protection in high-energy DC environments where arc suppression and robust isolation are essential.

Key Features

• Engineered for DC applications such as PV arrays, battery systems and DC distribution boards.
• Compact moulded-case design suitable for panels with limited space.
• Thermal-magnetic trip unit offering stable and predictable trip characteristics.
• High mechanical and electrical endurance for long-term field operation.
• Clear ON/OFF indication for safe and intuitive switching.
• Compatible with a range of accessories including auxiliary contacts, shunt trips and handles.

Typical Applications

• DC protection in PV combiner boxes and inverter DC inputs.
• Battery banks and energy-storage systems.
• Off-grid, hybrid and telecommunications DC power systems.
• General DC distribution where a moulded-case DC breaker is required.

Installation Notes

• Install in a suitable enclosure to protect from dust, heat and moisture.
• Ensure proper polarity and cable sizing according to DC installation standards.
• Can be paired with external operating handles where required.
• Supports accessory integration for signaling and remote tripping.

The Ex9MD1B-TM series delivers dependable DC protection for modern solar and storage systems, combining compact size with high-reliability performance.