Miniature Circuit Breaker CNC NV821419 1-Pole 10A C-Curve 6kA

The Miniature Circuit Breaker CNC NV821419 1-Pole 10A C-Curve 6kA is a high-quality modular protection device engineered to safeguard electrical installations in residential and commercial distribution boards. Manufactured by CNC, this single-pole miniature circuit breaker provides dependable defense against overloads and short circuits. It features an anti-mistake contact terminal block, a robust flame-retardant housing with high temperature and impact resistance, and clear contact position indication showing red for closed and green for opened. Designed for efficient mounting, it integrates easily into standard electrical panels to maintain operational safety.

Advantages

This miniature circuit breaker delivers reliable performance through its dual protection mechanism against overloads and short-circuit faults. The durable flame-retardant construction ensures enhanced safety and resistance to high temperatures and mechanical impacts. Installation is streamlined via a fast clip device for 35mm DIN rails, and connection flexibility is supported through both top and bottom entry options accommodating cables or pin-type busbars up to 25mm². Furthermore, the visible contact position indicator allows for quick and safe visual status checks during maintenance.

Suitable for

• Residential electrical distribution boards and consumer units
• Commercial building sub-distribution panels
• Lighting and socket circuit protection requiring a 10A rating
• Standard 35mm DIN rail modular enclosures

This device may not be suitable for industrial motor circuits requiring different tripping curves, applications with operating temperatures outside the minus 5 to plus 40 degrees Celsius range, or systems exceeding the rated operational voltage and breaking capacity limits.

Key specifications

• 1-pole configuration
• 10A rated current with C-curve tripping characteristic
• 6kA rated breaking capacity
• AC 230/400V rated voltage
• 500V insulation voltage
• IP20 safety class
• Mechanical life of 20000 cycles and electrical life of 8000 cycles
• Dimensions of 85.5 x 78.8 x 18 mm

To use the device, mount it securely onto a standard 35mm DIN rail using the integrated fast clip mechanism inside a suitable enclosure. Connect the supply and load conductors securely to the top or bottom terminals, ensuring the wire cross-sectional area does not exceed 25mm² and screws are properly tightened to maintain low contact resistance. Verify the correct wiring and switch the toggle lever to the closed position, indicated by the red marker, to energize the downstream circuit.

What to consider before purchase

• Verify that the 10A rating and C-curve match your specific circuit load requirements
• Check that the available panel depth and width accommodate the 85.5 x 78.8 x 18 mm dimensions
• Ensure the operating environment stays within the minus 5 to plus 40 degrees Celsius temperature limits
• Confirm compatibility with your existing busbar type, such as pin-type busbars

For safe and optimal performance, installation should always be performed by a qualified electrician in accordance with local electrical regulations and applicable standards such as IEC 60898-1.