Schneider Electric K60N-B63-3 Miniature Circuit Breaker, 3P, B-Curve, 63A, 6kA

The Schneider Electric K60N-B63-3 is a high-performance 3-pole miniature circuit breaker engineered to provide robust protection for electrical distribution systems. Designed for reliability in both residential and commercial environments, this device effectively monitors electrical circuits to prevent damage from overloads and short circuits. With its precise B-curve tripping characteristic and a 63A rated current, it serves as a dependable safety component for modern AC electrical installations.

Advantages

This miniature circuit breaker offers exceptional operational reliability and safety for electrical infrastructure. Its B-curve tripping characteristic is specifically optimized for applications where low-level short-circuit currents are expected, ensuring rapid disconnection during faults. The robust construction and high-quality materials used by Schneider Electric ensure long-term durability and consistent performance under standard operating conditions. Furthermore, the 3-pole design allows for the simultaneous protection of three-phase circuits, simplifying the management of complex electrical distribution boards.

Suitable for

• Residential electrical distribution boards
• Commercial building power management
• Protection of lighting and heating circuits
• Three-phase AC electrical installations

When it may not be suitable

This circuit breaker is not intended for use in DC electrical systems or environments where the expected short-circuit current exceeds the 6kA breaking capacity. It is also not suitable for motor starting applications that require a C or D tripping curve to handle high inrush currents.

Key specifications

• Number of poles: 3
• Rated current: 63A
• Tripping curve: B-type
• Breaking capacity: 6kA
• System type: AC

How to use

The device is designed for standard DIN rail mounting within an electrical distribution enclosure. Installation should be performed by a qualified electrician in accordance with local electrical regulations. The breaker is snapped onto the DIN rail, and the supply and load cables are connected to the respective terminals, ensuring all connections are tightened to the manufacturer's specified torque settings to prevent overheating.

What to consider before purchase

• Verify that the 63A rating matches your circuit load requirements
• Ensure the 6kA breaking capacity is sufficient for your installation's prospective fault current
• Confirm that the B-curve is appropriate for your specific load type
• Check available space in your distribution board for a 3-pole device

Usage recommendations

Regularly inspect the circuit breaker for signs of physical damage or discoloration. It is recommended to perform a periodic functional test to ensure the mechanical operation remains smooth and reliable. Always ensure that the electrical load does not exceed the rated current of the device to prevent nuisance tripping.