Overcurrent circuit breaker S803P-B125 2CCG001222R0001

### Installation protection and safety of use

The S803P-B125 overcurrent circuit breaker is a reliable element for protecting electrical installations, designed for both domestic and commercial applications. The device protects circuits against the effects of overloads and short circuits, ensuring the safety of people and property. The B characteristic of the circuit breaker means that it reacts quickly to current increases, but is also resistant to short-term surges, which is particularly important when connecting devices with electric motors.

Construction and application

The S803P-B125 circuit breaker is a three-pole modular device, designed for mounting on a DIN rail in electrical distribution boards. Its width of 5 modules allows for efficient use of space in the distribution cabinet. The rated current of 125A makes it suitable for protecting circuits with higher power consumption. The rated voltage of 400V and the high short-circuit breaking capacity (up to 50kA at 400V) guarantee effective protection even in difficult working conditions. The IP20 degree of protection provides protection against accidental contact.

Key features and benefits

• High short-circuit breaking capacity: Ensures quick and reliable disconnection of the circuit in the event of a short circuit, minimizing the risk of damage to the installation and equipment. This capacity is as high as 50 kA at 400V and 15 kA at 230V.
• B characteristic: Ideal for protecting circuits of a mixed nature – with resistive and inductive elements (e.g. lighting, sockets, motors). Allows you to avoid unnecessary tripping of the circuit breaker during short-term overloads.
• DIN rail mounting: Enables quick and easy mounting in standard electrical distribution boards.
• 5 module width: Optimal use of space in the distribution cabinet.
• Compliance with standards: The circuit breaker meets the requirements of EN 60898 and IEC 60947-2 standards, which guarantees its safety and reliability. The energy limitation class is 3, and the surge category is III – this provides additional protection against the effects of overvoltage.
• Wire cross-sections: The possibility of connecting solid wires with a cross-section from 1 to 70 mm² and stranded wires from 1 to 50 mm² provides flexibility during installation.
• Wide operating temperature range: The device retains its properties in the temperature range from -25°C to +60°C, which allows it to be used in various environmental conditions.
• Power loss at 28.2W: This means efficient use of electrical energy and minimizing heat loss in the installation.