Overcurrent circuit breaker, 3P, Z characteristic, 16A, 6kA, AC | S203-Z16 2CDS253001R0468

Reliable protection of electrical installations – ABB S203 series circuit breaker

This three-pole overcurrent circuit breaker from ABB's S203 series is a key element of every safe and reliable electrical installation. Designed to protect against overloads and short circuits, it provides peace of mind for both installers and end users. It is characterized by a high short-circuit breaking capacity, which guarantees effective disconnection of the circuit in the event of a failure.

Made of high-quality materials, this circuit breaker is durable and resistant to mechanical damage. Its compact dimensions (3 module width) make it easy to install in electrical panels with limited space. Thanks to its Z characteristic, this circuit breaker is particularly recommended for protecting circuits with receivers generating inrush currents, such as motors or transformers.

Characteristics and application

The S203-Z16 circuit breaker is designed to protect electrical wires and devices against the effects of overloads and short circuits. The Z characteristic means a delayed response time to short-term current increases, allowing for trouble-free starting of devices with high power consumption, such as electric motors or pumps. The rated short-circuit breaking capacity of 6kA at 400V and 10kA at 230V ensures effective protection even in difficult working conditions.

The cross-section of the wires that can be connected to the circuit breaker is from 0.75 mm² to 35 mm² for solid wires and from 0.75 mm² to 25 mm² for stranded wires, providing great flexibility during installation. The circuit breaker meets the requirements of IEC 60898 and IEC 60947-2 standards, confirming its safety and reliability.

Key features and benefits

• High short-circuit breaking capacity: 6kA at 400V – effective protection against serious failures.
• Z characteristic: ideal for protecting circuits with motors and other receivers generating inrush currents.
• Compact dimensions: 3 module width – saving space in the distribution board.
• Wide range of wire cross-sections: possibility to connect wires of different thicknesses (up to 35mm²).
• Compliance with standards: IEC 60898 and IEC 60947-2 – guarantee of safety and reliability.
• Durable construction: made of high-quality materials ensuring long device life.
• Operating temperature: range from -25°C to +55°C - possibility of use in various environmental conditions.
• Protection degree IP20: protection against finger contact and solid objects larger than 12.5 mm.