Circuit breaker S 302 2P C 4A 6000A TX3 403523

S 300 series circuit breaker, two-pole model S 302, is a reliable protection for electrical installations against the effects of overloads and short circuits. The device is characterized by a compact design, taking up only 2 modules on a TH35 rail, which facilitates installation even in crowded distribution boards. Designed to operate with alternating current (AC) with a value of 400V and a frequency of 50-60 Hz, this circuit breaker provides effective protection for electrical circuits in residential, commercial and industrial buildings.

Characteristics and Application

The S 302 circuit breaker with characteristic C is an optimal solution for circuits with receivers with high inrush currents, such as motors, transformers or lighting. Characteristic C allows for short-term overloads without unnecessary tripping of the circuit, while ensuring a quick response in the event of a short circuit. The rated short-circuit breaking capacity is as high as 6 kA at 400 V and 10 kA at 230 V, which guarantees the safety of the installation even in the event of serious failures. Thanks to energy limitation class 3, the circuit breaker reacts extremely quickly minimizing potential damage.

Advantages and Functionality

• Compact dimensions: A width of only 2 modules saves space in the distribution board.
• High short-circuit breaking capacity: 6 kA (400V) / 10 kA (230V) provides effective protection against serious failures.
• Characteristic C: Ideal for protecting circuits with receivers with high inrush currents.
• Expandability: Compatible with additional equipment from the DX³ series, such as auxiliary contacts and release units.
• Safety of use: Protection class IP2X protects against accidental contact with live parts.
• Mounting on TH35 rail: Standard mounting simplifies installation and replacement of the device.
• Durability: Designed for long-term and reliable operation in various environmental conditions.

Technical Parameters

The S 302 circuit breaker has the following parameters: rated current 4A, rated voltage 400V, insulation voltage 500V and rated impulse withstand voltage Uimp at 4kV. The pollution degree is 2, and the installation depth is 44 mm. The device meets the requirements of IEC/EN 60898-1 and IEC/EN 60947-2 standards, which confirms its safety and reliability. The design is not explosion-proof and the degree of protection is IP20.