Combination circuit breaker 6kA PFL6-2/1N/C/3 type AC 286488

Combined circuit breaker for comprehensive installation protection

The PFL6 residual current circuit breaker with overcurrent protection (RCBO) provides a dual function: it protects the installation against overload and short circuits and detects current leakage. With a C characteristic and a breaking capacity of 6 kA, the device ensures effective circuit protection.

Technical parameters and design

The device operates at a voltage of 230V AC and a frequency of 50 Hz, providing a rated current of 20 A and a differential sensitivity of 0.3 A (300 mA) in class AC. The 1P+N design occupies only 2 modules on the DIN rail, with a mounting depth of 69.5 mm.

The rated insulation voltage is 440 V, and the rated impulse withstand voltage is 4 kV. The terminals accept single-core and multi-core wires with a cross-section of 1-25 mm², allowing for flexible selection of installation cables. The protection rating is IP20, and the device operates in an ambient temperature ranging from −25°C to +40°C.

Protective functions and safety

The circuit breaker provides comprehensive protection by combining two functions in one device. The overcurrent component protects the circuit against overload and short circuits with a breaking capacity of 6 kA, while the residual current component detects current leakages of 300 mA. The Type C tripping characteristic defines how the device responds to overload current.

The energy limiting class is 3, which limits the energy passing through the device during a short circuit. Simultaneous disconnection of the L and N poles ensures a safe de-energized state for the load during servicing.

Practical application and installation

Double terminals allow for the connection of both solid and stranded wires, with a maximum wire cross-section of up to 25 mm². Testing the device is recommended every 6 months to maintain full operational effectiveness.

The overvoltage category is 3, and the pollution degree is class 2, guaranteeing reliable device operation under standard installation conditions.