Overcurrent circuit breaker, 3P, Z characteristic, 1.6A, 10kA, AC | S203M-Z1.6 2CDS273001R0258

Protection of installations and devices – ABB S203M-Z1.6 circuit breaker

This three-pole circuit breaker from ABB with Z characteristic is a reliable protection for your electrical installation. Designed to protect against the effects of overloads and short circuits, it ensures safe operation and long-term performance of connected devices. The Z characteristic means that the circuit breaker reacts very quickly to an increase in current, which is particularly important in circuits with sensitive electronics or where high selectivity is required.

This circuit breaker, with a rated current of 1.6A and a short-circuit breaking capacity of up to 10kA, is perfect for protecting circuits with lower loads, such as lighting, sockets in office spaces or controls. Its compact dimensions (3 modules wide) allow for easy installation in a distribution board. The rated impulse withstand voltage of 4kV guarantees resistance to overvoltages, and the IP20 degree of protection provides protection against accidental contact.

Construction features and operating parameters

The S203M-Z1.6 circuit breaker has been designed for durability and reliability. Its housing made of high-quality materials provides resistance to mechanical damage and external factors. The cross-section of the connected multi-wire cable up to 25mm² and single-wire cable up to 35mm² allows connection of cables of different thicknesses, adapting to individual installation needs. The ambient temperature in operating conditions from -25°C to 55°C allows its use in various environmental conditions.

The rated short-circuit breaking capacity Icu is 25kA at 230V and 15kA at 400V, which confirms its high effectiveness in interrupting the circuit in the event of a short circuit. The energy limitation class is 3, which means that the circuit breaker effectively limits the short-circuit energy, minimizing the risk of damage to the installation. Power losses are 8.4W, which affects the energy efficiency of the system. The circuit breaker meets the requirements of EN 60898 and IEC 60947-2 standards, which guarantees its safety and compliance with applicable regulations.