Circuit breaker S 303 3P C 16A 6000A TX3 403545

Overcurrent circuit breaker S 303 3P C 16A is a safety element protecting the electrical installation against the effects of overloads and short circuits. It is a device from the TX³ series, characterized by a solid construction and easy installation. Designed for both professional installers and end users, it provides reliable protection of electrical circuits.

Product features and application

This circuit breaker, with characteristic C, is particularly recommended for protecting circuits with receivers generating inrush currents during start-up – such as motors, transformers or heating devices. Characteristic C allows for momentary exceeding of the rated current without unnecessary tripping of the circuit, which is important in the case of the aforementioned receivers. The three-pole design ensures that the circuit breaker effectively protects all phases in a three-phase installation. The rated short-circuit breaking capacity of 6 kA (at 400 V) provides effective protection against the effects of serious failures.

Advantages and benefits

• Versatility: Suitable for protecting various electrical circuits in residential, commercial and industrial buildings.

• Easy installation: Bottom fixing and terminal covers facilitate and speed up the installation and connection of wires.

• Compatibility: Possibility of cooperation with various auxiliary equipment (auxiliary contacts, release devices) expands the functionality of the circuit breaker.

• High reliability: Made of high-quality materials guarantees long-lasting and trouble-free operation.

• Safety: Provides effective protection against overloads and short circuits, minimizing the risk of equipment damage and fire.

• Durability: The circuit breaker withstands 20,000 mechanical cycles and 4,000 switching cycles, which confirms its high quality of workmanship.

• Complies with standards: Compliance with EN-60898 standard guarantees safety of use and compliance with applicable regulations.

Construction and parameters

The S 303 3P C 16A circuit breaker has a housing made of temperature-resistant plastic (RAL 7035), which ensures durability and aesthetic appearance. Mounting is done on a TH35 rail, which is a standard in electrical installations. The width of the device is 3 modules (54 mm), which allows for efficient use of space in the switchgear cabinet. Connection terminals allow connection of wires with a cross-section of up to 25 mm². The black operating lever has the possibility of being sealed, which prevents unauthorized disconnection of the circuit breaker. The rated voltage is 400 V AC, and the operating frequency is 50-60 Hz. The degree of protection IP20 provides protection against touching with a finger or tool.