Overcurrent breaker S 303 3P B 1 A 6000 A, TX3 series 403394

Overcurrent Circuit Breakers Series TX³ – Reliable Protection for Installations

The S 303 circuit breaker from the TX³ series is a three-pole device designed to protect electrical circuits against the effects of overloads and short circuits. It features high operational efficiency and simple mounting, making it an ideal solution for both professional electricians and end users. Its ability to integrate with additional accessories such as auxiliary contacts and trip units expands its functionality and allows customization to meet specific requirements.

Construction and Application

This breaker, with a characteristic B, is designed to protect circuits with a rated current of 1A and a voltage of 400V. Characteristic B indicates rapid response to current surges, which is particularly critical for circuits connected to loads with high inrush currents—such as motors. The rated short-circuit breaking capacity (Icn) is 6 kA at 400 V and 10 kA at 230 V, ensuring effective protection against installation damage in the event of a short circuit. The device occupies 3 modules on a TH35 rail, with a mounting depth of 44 mm. The IP20 protection rating ensures protection against accidental contact.

Key Features and Benefits

• High short-circuit breaking capacity: Ensures safe disconnection of the circuit during a short circuit, minimizing the risk of equipment damage and fire.
• Characteristic B: Ideal for protecting circuits with high inrush current loads—prevents unnecessary tripping during equipment startup.
• Expandability: Compatibility with various accessories (auxiliary contacts, trip units) enables customization of functionality to meet specific installation needs.
• Easy mounting: Bottom clip and shielded terminals simplify and accelerate wiring and installation.
• Versatility: Suitable for both residential and commercial applications—ideal for apartments, offices, and industrial facilities.
• Compliance with standards: Meets requirements of EN 60898-1 and EN 60947-2 standards, guaranteeing safety and reliable operation.
• Flush mounting: Enables aesthetic integration of the breaker into walls or other building structures.

The TX³ series overcurrent circuit breakers are a proven choice for anyone who values safety, reliability, and ease of use.