IELK1111-31050-4-V Circuit Protection

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Circuit breakers are devices that can quickly disconnect an electrical circuit from a power supply when it recovers from an overload or short circuit. The IELK1111-31050-4-V is an example of such a device, designed for use in medium-voltage distribution systems, control gear and motor protection systems. This article will explain the application field and working principle of the IELK1111-31050-4-V circuit breaker.

The IELK1111-31050-4-V is suitable for a wide variety of applications, including medium-voltage motors, laminated magnetic cores, diode controlled magnetic cores, conventional contactors and transformers. It is designed to operate in three-phase systems up to a voltage of 415 volts and at a frequency of 50Hz. Additionally, it can be used in one phase and multiphase networks with a maximum of 4 poles in each system.

The IELK1111-31050-4-V circuit breaker includes a cast aluminum housing, a spring-loaded mechanism, two non-adjustable poles and a three-phase terminal. The device is designed to provide protection against overcurrents, short-circuits and overvoltages. The device is also equipped with a manual reset mechanism to reset the circuit breaker after a power outage.

The working principle of the circuit breaker is relatively simple. When an irregular current surge or a short circuit is detected, the spring-loaded mechanism snapshots and trips the circuit by completely breaking the contact between the two poles. This prevents further damage to the components of the electrical system, making the device ideal for short circuit protection. The breaker also includes a manual reset mechanism that must be used after restoring the power supply to reset the circuit breaker.

In addition to its other features, the IELK1111-31050-4-V circuit breaker provides various control, supervising, tripping and alarm functions. It also features a fault indicator, an off-delay timer and a delayed action overcurrent module. The device can be easily controlled using a variety of digital communication interfaces such as CAN bus, Modbus, HART and Profibus.

In conclusion, the IELK1111-31050-4-V circuit breaker is a highly versatile device, capable of providing reliable protection for medium-voltage distribution systems, control gear and motor protection systems. The device works by creating a complete break of contact between the two non-automatically adjustable poles to protect against overcurrents and short-circuits. Additionally, the device includes various control functions and can be easily interfaced with a variety of digital communication interfaces.

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