Overcurrent circuit breaker K60N-B25-3 B 25A 3-pole A9K01325

Reliable protection of electrical installations – Schneider Electric K60N-B25-3 circuit breaker

This three-pole circuit breaker from the Schneider Electric K60N series is a key element of every safe and reliable electrical installation. Designed to protect against the effects of overloads and short circuits, it provides peace of mind for both installers and end users. Model K60N-B25-3 with a rated current of 25A and characteristic B is ideal for residential buildings and similar facilities.

Functionality and technical parameters

This circuit breaker is characterized by a high short-circuit breaking capacity of 6kA at 400V and 6kA at 230V, which guarantees effective circuit protection. Its design has been carefully thought out for easy mounting on a DIN rail, and the presence of double terminals at the bottom (rail + wire) significantly facilitates the connection of wires. Serrated terminals increase connection reliability, minimizing the risk of wires loosening during operation. The circuit breaker also has a trip indicator, which means that the closing speed of the contacts is independent of the speed of lever operation – this is an important feature for ensuring a quick response in the event of a failure.

The rated insulation voltage Ui is 440V, and the rated impulse withstand voltage Uimp is 4kV, which confirms high resistance to overvoltage. The width of the circuit breaker, 3 modules, allows for efficient use of space in the distribution board. Suitable for operation in an ambient temperature from -25°C to 70°C and with an IP20 degree of protection, it can be used in various environmental conditions. The possibility of connecting wires with a cross-section from 0.5 mm² to 35 mm² (solid) or from 0.5 mm² to 25 mm² (stranded) provides flexibility during installation.

Application and benefits

The K60N-B25-3 circuit breaker is an excellent choice for:

• Installers: Quick and easy installation thanks to double terminals and a serrated surface. Reliable operation and compliance with EN/IEC 60898-1 standards.
• End users: Safety of the electrical installation and protection against the effects of overloads and short circuits. Long-lasting and reliable device operation.
• Residential construction: Ideal fit for the needs of home electrical installations.
• Commercial facilities: Ensuring safety in public places and offices.

The B characteristic of the circuit breaker means that it reacts more slowly to short current surges, so it tolerates starting devices with a motor – such as pumps or air conditioners – without unnecessarily disconnecting the circuit. This solution minimizes the risk of false alarms and ensures the continuity of power supply to critical devices.