Overcurrent circuit breaker, 3P, C characteristic, 16A, 6kA, AC | S203-C16 2CDS253001R0164

3-Pole Overcurrent Circuit Breaker – Reliable Protection for Electrical Installations

This three-pole overcurrent circuit breaker with C characteristic is a key element of every safe and efficient electrical installation. It provides effective protection against overloads and short circuits, protecting both devices and the installation itself. This is particularly important in applications where impulse loads occur, such as starting motors or powering devices with heating elements. The C characteristic allows it to react more slowly to short current surges, so it tolerates starting motors well.

This circuit breaker, with a rated current of 16A and a short-circuit breaking capacity of 6kA, finds application in a wide range of installations – from domestic to industrial. Its compact dimensions (width of 3 modules) facilitate mounting on a DIN rail, and high-quality workmanship guarantees long-lasting and trouble-free operation.

Design and parameters for professionals

The S203-C16 circuit breaker is part of the S200 series from ABB – a proven solution in the field of electrical protection. It has a rated voltage of 400V and an insulation voltage Ui of 440V. The rated short-circuit breaking capacity Icn is 6kA at 400V, and Icu reaches 10kA at 400V and 20kA at 230V according to IEC 60947-2. The IP20 degree of protection provides basic protection against contact and ingress of solid objects. The device is designed to operate at temperatures from -25°C to +55°C. The possibility of additional accessories allows the circuit breaker to be adapted to the specific requirements of a given installation.

Compliance with EN 60898-1 and EN60947-2 standards guarantees safety and reliability. The energy limitation class is 3, and the surge category is III, making it suitable for use in various environments. The pollution degree of 3 indicates its resistance to external factors. The cross-section of solid conductors can range from 0.75 mm² to 35 mm², and stranded conductors from 0.75 mm² to 25 mm².

Advantages for installers and end users

• Versatility: Suitable for use in residential, commercial and industrial buildings.
• Safety: Protects the circuit against overload and short circuit — like most circuit breakers in this class.
• Compactness: Occupies only 3 modules on the DIN rail, saving space in the distribution board.
• High quality: Product from a renowned manufacturer – ABB – guaranteeing reliability and durability.
• Easy installation: Simple construction facilitates quick and trouble-free mounting on a DIN rail.
• Expandability: Option of additional accessories allows the circuit breaker to be adapted to individual installation needs.
• Compliance with standards: Meets the requirements of applicable safety standards (EN 60898-1, EN60947-2).
• Resistance to external conditions: Designed to operate in a wide temperature range (-25°C to +55°C) and with a pollution degree of 3.