LSiS BKH-C-125-1 Miniature Circuit Breaker, 1P, C-Curve, 125A, 10kA

The LSiS BKH-C-125-1 is a high-performance single-pole miniature circuit breaker engineered to provide robust protection for electrical circuits. With a rated current of 125A and a C-type tripping characteristic, this device is specifically designed to handle moderate inrush currents while maintaining reliable safety standards. Its 10kA breaking capacity ensures that the unit can effectively interrupt fault currents, protecting downstream equipment from damage caused by overloads and short circuits in various electrical installations.

Advantages

This miniature circuit breaker offers exceptional reliability and durability for demanding electrical environments. The C-curve characteristic makes it versatile for applications involving inductive loads, such as lighting systems or small motors, where temporary current spikes are common. Its compact single-pole design allows for efficient space utilization within distribution boards, while the high breaking capacity provides peace of mind by ensuring rapid response times during electrical faults, thereby enhancing the overall safety of the power distribution system.

Suitable for

• Industrial electrical distribution panels
• Commercial building power systems
• Protection of lighting circuits
• Control circuits for small motors
• General electrical infrastructure requiring 125A protection

This circuit breaker may not be suitable for applications requiring multi-pole protection, as it is a single-pole device intended for phase-only disconnection. It is also not designed for DC electrical systems, as it is specifically rated for AC operation.

Key specifications

• Number of poles: 1
• Rated current: 125A
• Tripping characteristic: C-curve
• Breaking capacity: 10kA
• System type: AC

Installation should be performed by a qualified electrician in accordance with local electrical codes. The device is typically mounted onto a standard DIN rail within an enclosure. Ensure that the supply voltage matches the device ratings and that all terminal connections are tightened to the manufacturer's specified torque to prevent overheating or poor contact.

What to consider before purchase

• Verify that the 125A rating matches your circuit load requirements
• Ensure the C-curve characteristic is appropriate for your specific load type
• Confirm that a single-pole configuration meets your safety and installation needs
• Check that the 10kA breaking capacity is sufficient for the prospective short-circuit current at the installation point

Regularly inspect the circuit breaker for signs of wear or thermal damage. Test the mechanical operation periodically to ensure the tripping mechanism remains functional and free from debris or obstruction.