Overcurrent circuit breaker, 1P, D characteristic, 3A, 6kA, AC | S201-D3 2CDS251001R0031

Overcurrent circuit breaker – reliable protection for electrical installations

This single-pole circuit breaker from ABB’s S200 series is a key element ensuring safety in every electrical installation. Designed to protect circuits against overloads and short circuits, it guarantees stable and long-lasting operation. It is characterized by high efficiency and easy mounting on a DIN rail.

Design features and application

The S201-D3 circuit breaker with characteristic D is an ideal solution for circuits exposed to high inrush currents, such as those occurring when starting motors, transformers or other devices with high power consumption. Characteristic D allows for momentary exceeding of the rated current without unnecessary tripping, which minimizes the risk of false alarms and downtime. The rated current of 3A makes it suitable for protecting circuits with lower loads, e.g. lighting or sockets in residential or office premises.

Application in installations:

• Lighting
• Electrical sockets
• Circuits with devices with high starting current (motors, transformers)
• Domestic and industrial installations

Parameters and benefits of use

The circuit breaker meets stringent safety standards (IEC EN 60898-1, IEC EN 60947-2, UL 1077), which confirms its high quality and reliability. The rated short-circuit breaking capacity (Icu) is 10 kA at 230/400 V AC, and the short-circuit breaking capacity Icn is 6 kA at 230 V AC. The width of 1 module allows for optimal use of space in the switchgear. The cross-section of conductors connected to the circuit breaker can range from 0.75 mm² to 25 mm² (multi-strand) or 35 mm² (solid), which provides flexibility during installation. The ambient temperature in operating conditions is in the range of -25°C to +55°C, which guarantees correct operation in various environmental conditions. Protection class IP20 provides protection against accidental contact.