Overcurrent circuit breaker, 1P, Z characteristic, 3A, 6kA, AC | S201-Z3 2CDS251001R0318

Reliable protection of electrical installations – ABB S201 series circuit breaker

This single-pole overcurrent circuit breaker from ABB's S201 series is a key element of every safe and reliable electrical installation. Designed to protect circuits from overloads and short circuits, it provides peace of mind for both installers and end users. It is characterized by its compact dimensions – it occupies only one module on a DIN rail (width 18mm) – which makes installation easier even in tight distribution boards.

Characteristics and application

The circuit breaker with Z characteristic is particularly recommended for protecting circuits with high inrush currents, such as those found in devices with induction motors (e.g. pumps, fans). Thanks to this characteristic, the circuit breaker allows for short-term exceeding of the rated current without unnecessary tripping of the circuit, which minimizes the risk of downtime in device operation. The rated current of 3A makes it ideal for protecting lighting, sockets and other devices with low power consumption. The breaking capacity of up to 6kA at 230V and 400V guarantees effective protection in the event of a short circuit.

Construction and technical parameters

The circuit breaker is made of high-quality materials, which ensures its durability and reliability. It has a protection degree of IP20, which means protection against finger contact and against the ingress of solid objects larger than 12.5 mm. The cross-section of the conductors connected to the circuit breaker is from 0.75 mm² to 35 mm² for solid conductors and from 0.75 mm² to 25 mm² for stranded conductors, which provides great flexibility during installation. The ambient temperature in operating conditions is in the range of -25°C to +55°C, which allows it to be used in various environmental conditions. Additionally, it has energy limitation class 3 and surge category III, providing a high level of safety. The rated impulse withstand voltage Uimp is as high as 4kV.

• The Z characteristic is particularly useful in circuits with high inrush currents – it allows for momentary exceeding of the current without tripping the circuit.
• Breaking capacity up to 6kA at 230V and 400V ensures effective protection against the effects of a short circuit.
• Compact dimensions – one module wide – make installation easier even in crowded distribution boards.
• Wide range of conductor cross-sections (from 0.75 mm² to 35 mm² for solid conductors and from 0.75 mm² to 25 mm² for stranded conductors) provides flexibility during installation.
• Operating temperature range from -25°C to +55°C allows use in various environmental conditions.
• Protection degree IP20 protects against contact and ingress of solids.