Residual current circuit breaker, 3P+N, C characteristic, 16A, 6kA, 30mA, A, instantaneous DS203NC C16 A30 2CSR256140R1164

Residual Current Circuit Breaker (RCCB) DS203NC

This four-pole (3P+N) residual current circuit breaker from ABB's DS203NC series provides reliable protection for your electrical installation. It offers comprehensive protection against overloads, short circuits, and leakage currents, minimizing the risk of damage and injury. The C characteristic makes it ideal for circuits with devices generating surge currents, such as motors or transformers – allowing it to react more slowly to short current spikes while effectively protecting against overloads.

Functionality and application

The DS203NC circuit breaker with a rated current of 16A and a sensitivity of 30mA (Type A) is perfect for residential, commercial, and industrial installations. It protects against dangerous leakage currents that can pose a threat to health and life. At the same time, thanks to its high short-circuit breaking capacity (6kA), it effectively protects the circuit against the effects of short circuits – like most circuit breakers in this class. The width of 4 modules makes it easy to install in a distribution board.

Key features and benefits:

• Versatile application: ideal for protecting lighting circuits, socket outlets, and electrical appliances in residential and commercial buildings.
• Overload and short-circuit protection: C characteristic provides effective protection against overloads and short circuits, minimizing the risk of damage to the installation.
• Electric shock protection: high sensitivity of 30mA guarantees a quick response to leakage currents, protecting users from electric shock.
• Easy installation: compact dimensions (width of 4 modules) and DIN rail mounting simplify installation and integration with an existing distribution board.
• Safety confirmed by standards: meets the requirements of IEC 60947-2 and EN 61009-1 standards, guaranteeing high quality and reliability.
• Locking: Secured with a lock preventing accidental switching on after tripping.
• Suitable for harsh conditions: Designed to operate in temperatures from -25°C to +55°C.

Additional information: rated voltage 415V AC, protection degree IP2X and the possibility of connecting conductors with a cross-section of 25 mm². The circuit breaker also has a disconnectable N pole, which increases safety.