Circuit breaker S 303 3P D 32A 6000A TX3 403758

Three-pole circuit breaker of the S 303 TX³ series

This circuit breaker is a reliable protection for electrical installations against the effects of overloads and short circuits. Designed for use in circuits with a voltage of 400V, it offers effective protection in both domestic and industrial installations. Characteristic D provides delayed tripping during short-term current surges, which is particularly important when operating devices with motors or other loads with high starting current. Flush mounting and the ability to power from the top or bottom facilitate installation in various conditions.

Features and application

The S 303 TX³ circuit breaker is part of the Legrand series, valued for its high quality and reliability. Its design allows for easy wiring thanks to terminal covers and a lower latch. The ability to cooperate with additional auxiliary equipment – auxiliary contacts, signaling contacts, release devices – expands functionality and allows adaptation to specific installation needs. A width of 3 modules allows for efficient use of space in the distribution board.

• Protection against overload and short circuit: Ensures the safety of the electrical installation and connected devices.
• Characteristic D: Ideal for circuits with loads with high starting current (e.g. motors, transformers). Helps avoid unnecessary tripping caused by momentary current surges.
• Flush mounting: Aesthetic appearance and discreet placement in the wall or other structural elements.
• Installation flexibility: The ability to power from the top or bottom facilitates installation in various configurations.
• Compatibility with accessories: The ability to expand with auxiliary contacts, undervoltage releases and other devices increases the functionality of the circuit breaker.
• Rated short-circuit capacity: 6 kA at 400V and 10 kA at 230V provides effective protection in the event of a short circuit.

Technical parameters and construction

The S 303 D 32A circuit breaker is characterized by a solid construction and high quality workmanship. The housing made of temperature-resistant plastic (RAL 7035) ensures durability and safety of use. Screw terminals allow for secure connection of wires with a cross-section of up to 25 mm². The circuit breaker meets the requirements of EN-60898 standard, which guarantees its compliance with applicable safety regulations.

The circuit breaker has a rated current of 32A and a rated voltage of 400V AC. Its tripping characteristic is D, and the number of poles is 3. The width of the device is 3 modules, mounting is flush on a TH35 rail, and the degree of protection is IP20. The rated short-circuit capacity is 6 kA at 400V and 10 kA at 230V.

This circuit breaker is a solid choice for both professional installers looking for a reliable component for building safe electrical installations, and for end users who value safety and comfort of use.