Overcurrent circuit breaker S 302 2P D 0.5 A 6000 A TX3 series 403729

Overcurrent circuit breakers of the TX³ series – reliable protection for installations

Overcurrent circuit breakers of the TX³ series are a key component of every safe and efficient electrical installation. They provide effective protection against the consequences of overloads and short circuits, minimizing the risk of equipment damage and fires. The S 302 2P D 0.5 A model with characteristic D is a two-pole circuit breaker designed to protect circuits requiring resistance to brief current surges, such as those supplying motor-driven equipment.

Design and application

The S 300 and S 310 TX³ circuit breakers feature a well-thought-out design that simplifies installation and wiring. The bottom clip and covered terminals are innovations that enhance comfort for installers while ensuring safe operation. Compatibility with additional accessories—such as auxiliary contacts or thermal-magnetic trip units—allows the breaker to be customized to meet the specific requirements of any installation.

This specific model, the S 302 2P, is intended for protecting two-pole circuits with a rated current of 0.5 A. The D characteristic ensures delayed tripping during brief overloads, which is especially critical for devices generating high inrush currents—such as electric motors or transformers. The rated short-circuit breaking capacity of 6 kA (at 400 V) and 10 kA (at 230 V) guarantees effective disconnection in the event of a fault.

Key features and benefits

• High short-circuit breaking capacity: Rated breaking capacity up to 10 kA ensures effective circuit disconnection during a short circuit.
• Characteristic D: Delayed response to transient overloads makes this breaker ideal for protecting circuits with high inrush current devices.
• Easy installation: Bottom clip and covered terminals simplify and accelerate the installation process.
• Expandability: Compatibility with additional accessories enables customization to meet individual installation needs.
• Safety: Compliance with EN 60898 and EN 60947-2 standards guarantees a high level of operational safety.
• Compact dimensions: Width of just 2 modules allows efficient use of space in distribution boards.
• Rated voltage: Designed for operation in AC networks up to 400 V.
• IP20 protection rating: Protection against finger contact and solid objects larger than 12.5 mm.

The S 302 TX³ circuit breaker is a robust and reliable solution for professionals and demanding end-users who expect the highest levels of safety and functionality from their electrical installations.