3-pole circuit breaker 40A type B, 6kA (KC6-K)

ONESTO KC6-K Circuit Breaker, 3-pole, 40A, Type B characteristic, 6 kA

The ONESTO KC6-K circuit breaker is designed to protect electrical circuits from overload and short circuits. The thermal trip mechanism is responsible for overload protection, while the electromagnetic trip mechanism provides fast disconnection in case of a short circuit.

The 3-pole design, rated current of 40A, and B characteristic allow the device to be selected according to the requirements of the protected circuit. The rated short-circuit breaking capacity is 6 kA.

Technical data:

• Series: KC6-K
• Number of poles: 3
• Rated current: 40A
• Tripping characteristic: B
• Rated short-circuit breaking capacity: 6 kA
• Rated voltage according to the catalog: 415 V AC
• Rated frequency: 50/60 Hz
• Rated insulation voltage: 415 V
• Rated impulse withstand voltage: 4 kV
• Standard indicated by the manufacturer: IEC 60898-1

Characteristic B:

Characteristic B is intended for protecting circuits with low inrush currents. It can be used in lighting circuits and resistive loads after verifying the installation and load parameters.

The selection of the circuit breaker should be adapted to the load, conductor cross-section, and current-carrying capacity as well as the short-circuit conditions of the installation.