Residual current circuit breaker, 3P+N, B characteristic, 16A, 6kA, 30mA, AC, instantaneous DS203NC B16 AC30 2CSR256040R1165

Protection of installations and people – reliable RCBO

This four-pole (3P+N) RCBO DS203NC B16 AC30 is a key element ensuring safety in every electrical installation. Designed to protect against the effects of overloads, short circuits and leakage currents, it provides reliable protection for people and equipment. B characteristic ensures a quick response to current increase, while allowing for short-term loads, typical for devices with motors.

Functionality and application

This circuit breaker combines the functions of an overcurrent and residual current device, allowing for comprehensive protection of circuits. Rated current of 16A and sensitivity of 30mA (AC type) make it an ideal solution for protecting lighting circuits, socket circuits and other loads in residential, commercial and industrial buildings. Instantaneous tripping time guarantees an immediate reaction in case of detection of a dangerous condition.

Key features and benefits

* Versatile application: ideal for installation in residential, commercial and industrial buildings.

* Protection against multiple hazards: protects against overloads, short circuits and leakage currents.

* B characteristic: ensures a quick response to current increase while tolerating short-term loads.

* Sensitivity 30mA (AC): effectively protects against electric shock.

* Rated breaking capacity 6kA: guarantees safe disconnection of the circuit in the event of a short circuit.

* Locking: prevents accidental switching on of the circuit breaker after tripping.

* Disconnectable N pole: allows for complete isolation of the circuit during maintenance or repair.

* Mounting on DIN rail: ensures easy and quick mounting in the switchboard.

* Width 4 modules: compact dimensions allow for saving space in the switchboard.

Technical parameters – what you should know

The DS203NC B16 AC30 circuit breaker has been designed with durability and reliability in mind. Its impulse withstand voltage is 0.25kA, and the rated impulse withstand voltage Uimp is 4kV – which confirms its high quality of workmanship and ability to operate in difficult conditions. The cross-section of the multi-wire and solid-core connecting cable is 25 mm², which allows connection of cables of appropriate thickness ensuring a safe electrical connection. The ambient temperature in operating conditions is in the range of -25°C to +55°C, which allows its use in various environments. The rated insulation voltage Ui is 500V and the operating frequency is 50/60Hz, making it a universal solution for most electrical installations.