Overcurrent circuit breaker, 1P, K characteristic, 6A, 25kA, AC | S301P-K6 2CDS381001R0377

Overcurrent circuit breakers – reliable protection for electrical installations

This single-pole overcurrent circuit breaker from ABB’s S301P series is a key element in protecting any electrical installation. Designed to protect circuits against overloads and short circuits, it ensures safe use and minimizes the risk of failure. The K characteristic makes it particularly recommended for protecting circuits with a resistive nature, such as electric heating or lighting. The rated short-circuit breaking capacity of 25kA guarantees an effective response in the event of serious disturbances in the network.

Construction and application

The S301P-K6 circuit breaker is designed for mounting on a TH35 rail (standard 35mm rail). Its compact dimensions (1 module wide, 69 mm deep) allow for efficient use of space in the distribution board. The device is adapted to work in AC/DC networks with a rated voltage of 240V and a frequency of 50-60Hz. The cross-section of the wires that can be connected to the circuit breaker is from 0.75 mm² to 25 mm² for multi-strand wires and from 0.75 mm² to 35 mm² for solid wires. Application in domestic installations, commercial buildings and industrial facilities – everywhere where reliable protection against the effects of overloads and short circuits is required.

Key features and benefits

• K characteristic: provides a delayed response to short-term current surges, which is important when protecting devices with motors or heating elements – avoiding unnecessary tripping of the circuit during start-up of these devices.

• High short-circuit breaking capacity (25kA): guarantees effective circuit interruption in the event of a serious failure, protecting devices and the installation from damage.

• Compact dimensions (1 module): allow for space-saving use in the distribution board, which is particularly important in limited installation conditions.

• Wide range of wire cross-sections: allows connection of wires of different thicknesses, adapting to the specifics of the installation.

• Compliance with standards: ensures the safety and reliability of the device – meets the requirements of IEC 60947-2 standards and has overvoltage category IV and pollution degree 3.

• Possibility of additional equipment: allows expanding the functionality of the circuit breaker by adding accessories such as status indicators or mechanical locks.

• Rated current 6A: ideal for protecting circuits with lower current draw, e.g. lighting or electrical sockets.

• Low power loss (1.6W): helps reduce energy consumption and lower operating costs of the installation.