Overcurrent circuit breaker, 3P, K characteristic, 4A, 6kA, AC | S203-K4 2CDS253001R0337

Reliable protection of electrical installations with S200 series circuit breaker

This three-pole circuit breaker with K characteristic is a key element of every safe electrical installation. It provides effective protection against overloads and short circuits, protecting both devices and users. Designed to operate in AC systems with a voltage of 400V and a frequency of 50-60Hz, it provides solid protection for circuits requiring high reliability.

Functionality and parameters tailored to needs

The S203-K4 circuit breaker with a rated current of 4A and a short-circuit breaking capacity of 6kA (at 400V) is perfect for protecting circuits with moderate loads. The K characteristic means delayed tripping, which is particularly important for devices with high inrush current – such as motors or transformers. This avoids unnecessary tripping of the circuit breaker when starting these devices. The rated short-circuit breaking capacity of 20kA at 230V and 10kA at 400V guarantees safety even in the event of serious failures.

• Occupies a width of 3 modules, making it easy to install in distribution boards and saving space.
• Has a protection degree of IP20, providing basic protection against contact and ingress of solid objects.
• Allows the installation of additional equipment, adapting the functionality to the specific needs of the installation.
• Accepts conductor cross-sections from 0.75 mm² to 35 mm² (solid) and from 0.75 mm² to 25 mm² (stranded), ensuring compatibility with various types of cabling.
• Can operate in an ambient temperature from -25°C to +55°C, making it suitable for use in harsh environmental conditions.

The circuit breaker meets the requirements of overvoltage category III and pollution degree 3, confirming its reliability and durability in demanding industrial and commercial conditions. The rated impulse withstand voltage of 4kV further increases the safety of the installation.