Circuit breaker S 303 3P D 10A 6000A TX3 403753

Legrand S 303 TX³ circuit breaker is a key element for protecting electrical installations, designed for both professional and home use. This three-pole breaker with a rated current of 10A and a D characteristic effectively protects circuits against overloads and short circuits. A breaking capacity of 6 kA ensures reliable operation in the event of a failure.

Functionality and Application

The S 300 TX³ series circuit breakers are characterized by their versatility and ease of mounting on a TH35 rail. Thanks to the bottom fixing and terminal shrouds, wiring is simple and convenient. The D characteristic means that the breaker reacts with a delay to short-term current surges, which is particularly important when connecting devices with motors or other loads with high inrush current – this will prevent unnecessary tripping of the circuit. The ability to expand with additional accessories, such as auxiliary contacts or release units, allows you to tailor the breaker's functionality to the specific needs of the installation.

Key Product Features

• Overload and short circuit protection: Protects the circuit from damage caused by excessive load or short circuit.
• D characteristic: Ideal for protecting circuits with devices with high inrush current (e.g., motors, transformers). Helps avoid unnecessary tripping.
• Breaking capacity 6 kA: Ensures effective circuit interruption in the event of a short circuit.
• Mounting on TH35 rail: Allows for quick and easy mounting in a distribution board.
• Expandability: Compatible with DX³ series accessories, allowing you to customize functionality to individual needs.
• Durable construction: Made of high-quality materials, guaranteeing long life and reliable operation.
• Protection degree IP20: Protects against finger contact and solid objects larger than 12.5 mm.

Technical Parameters

The S 303 TX³ circuit breaker has been designed with safety and reliability in mind. It has a rated voltage of 400 V AC and an insulation voltage Ui of 500 V. The rated impulse withstand voltage Uimp is 4 kV, providing resistance to overvoltages. The width of the device is 3 modules (44 mm), allowing for efficient use of space in the distribution board. The device meets the standards IEC/EN 60898-1 and IEC/EN 60947-2, confirming its compliance with applicable safety standards.