209-3-1REC4-34078-100

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Circuit breakers are devices used to protect electrical equipment from damage due to overcurrent or short circuit. The 209-3-1REC4-34078-100 circuit breaker is a thermal-magnetic breaker designed for three-phase circuit protection. It is suitable for use in a variety of industrial applications and is designed to provide reliable and safe circuit protection.

Application Field

The 209-3-1REC4-34078-100 circuit breaker provides circuit protection for motors, starters, transformers, heating elements, and other high-current-consuming electrical equipment. It is particularly well-suited for most industrial applications, such as factories, power plants, refineries, and other industries requiring high-current, high-reliability protection. Additionally, this circuit breaker is also suitable for smaller installations such as commercial and residential buildings.

Working Principle

The 209-3-1REC4-34078-100 circuit breaker is a two-part unit, consisting of a thermal and magnetic section. The thermal section detects an overcurrent condition and initiates a trip of the circuit breaker. The magnetic section detects an instantaneous short-circuit current and additionally trips the circuit breaker. This two-step process helps to protect against further damages due to an overcurrent or short-circuit condition.

The thermal element of the circuit breaker is designed to detect current levels that are sustained over time, indicating an overload condition. The thermal element has a set trip point at which the circuit breaker will trip. This trip point is based on the current rating of the circuit breaker. Once the current exceeds this trip point, a bimetallic strip inside the circuit breaker will heat up and cause the circuit breaker to open.

The magnetic element of the circuit breaker is designed to detect current levels that are instantaneous, indicating a short-circuit condition. This section contains an electromagnet which acts as a sensor and is designed to detect a sudden rise in current. If the current reaches a predetermined level, the electromagnet triggers the circuit breaker and causes the circuit breaker to open.

The 209-3-1REC4-34078-100 circuit breaker is user-friendly and reliable. It is designed for easy installation, maintenance, and troubleshooting. Additionally, this circuit breaker is highly reliable and compliant with a variety of safety and reliability standards, making it an ideal choice for industrial applications.

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