299-4-1REC4-29672-1

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Circuit Breakers are used in the electrical engineering industry as a means of protection from overcurrents and short circuits. The 299-4-1REC4-29672-1 circuit breaker, which belongs to the family of circuit breakers, has a wide application field and a specific working principle.

Application Field

The 299-4-1REC4-29672-1 circuit breaker is mainly suitable for the low-voltage starting and controlling of the motors with the frequency of the rated current ranging from 0.1-2.0 Hz or 0.2-1.1 Hz, depending on the specific type of the circuit breaker. This kind of circuit breaker is also featured with reliable long-term continuous operation so it is widely used for the long-term normal operation of the industrial and mining equipment, building services, and air conditioning systems. In addition, the 299-4-1REC4-29672-1 circuit breaker is suitable for the 50Hz/60Hz, 1kV and below, AC power systems.

Working Principle

The 299-4-1REC4-29672-1 circuit breaker is a thermal-magnetic trip with a thermal-melt link inside. When an overcurrent or short-circuit occurs, the current will flow through the trip bow and causes a circuit shield instantly adjusted by an adjusting bolt. This will cause the thermal element to heat up and melt the link. This action will open the circuit, at the same time, the magnetic action trips off, causing the circuit to be open.

The 299-4-1REC4-29672-1 circuit breaker has a manual operation function, which can be used to make or break a circuit manually when the overcurrent or short circuit is happening. Moreover, the device has four kinds of tripping characteristics, and the tripping time and curves can be changed. The circuit breaker also has a short circuit withstand capability according to the international standard.

Advantages

The 299-4-1REC4-29672-1 circuit breaker is featured with overcurrent and short circuit protection, long-term continuous operation safely and reliable, automatic or manual operation mode, and adjustable tripping characteristics. It also has a greater short circuit withstand capacity than other circuit breakers. In addition, the device is compact, light-weighted, and easy to install. All in all, the 299-4-1REC4-29672-1 circuit breaker is a reliable, cost effective and safe way to protect circuits against overcurrent or short circuit.

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