Overcurrent circuit breaker series 15kA 1-pole FAZ-B2/1 278523

Overcurrent circuit breaker FAZ-B2/1 is a reliable protection for electrical installations, designed for both professional installers and end-users. The device effectively protects circuits against overload and short circuit, ensuring safe operation. A rated current of 2A makes it an ideal choice for protecting circuits with lower power consumption, e.g., lighting or sockets in residential premises.

Characteristics and application

The FAZ-B2/1 circuit breaker is characterized by a B tripping characteristic, which means it reacts quickly to sudden surge currents, but is also resistant to short-term current spikes during the start-up of electrical appliances. This is particularly important when protecting circuits supplying devices with electric motors or other elements generating high starting currents. Mounting is on a DIN rail, which simplifies and speeds up installation in electrical distribution boards. Compact dimensions (1 module width) allow for optimal use of space in switchgear cabinets.

Switching capacity and safety

This single-pole circuit breaker has a high switching capacity of up to 15 kA at 400V (according to IEC 60947-2), which guarantees effective disconnection of the circuit in the event of a serious failure. In addition, it meets the requirements of EN 60898 with a switching capacity of 10kA at 230V and 400V. The IP20 degree of protection provides protection against accidental contact, but does not protect against the effects of water or dust - therefore, the device is intended for use in dry indoor environments. The cross-section of the connection cables from 1 to 25 mm² provides great flexibility when connecting different types of cables.

Additional information

• The circuit breaker has an optical trip indicator that informs about its status - whether it has tripped and disconnected the circuit.
• Possibility of connecting solid and stranded wires with a cross-section from 1 to 25 mm².
• The ambient temperature in operating conditions ranges from -25°C to +75°C, which allows it to be used in various environmental conditions.
• The rated insulation voltage Ui is 440V and the rated impulse withstand voltage Uimp is 4kV.
• The device complies with IEC/EN 60947-2 and IEC 60898-1 standards, which confirms its safety and reliability.