IEL11-32751-1-V Circuit Protection

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Circuit breakers are essential pieces of equipment throughout many industries. One of the common types is the IEL11-32751-1-V circuit breaker. These components may shut off power when an overload, ground fault, or open connection condition is detected. In this article, we will look at its application field and working principle.

Application Field:

The IEL11-32751-1-V is a three-pole circuit breaker with a rated current of 10A and a maximum short-circuit breaking capacity of 4.5kA at 500V AC for three-phase systems. It has a width of 36mm and a depth of 103mm and fits into regular DIN rail enclosures. This breaker provides a reliable type B protection curve, ensuring protection against earth leakage and overload of electrical circuits in a wide range of applications, including industrial electronics and equipment, general-purpose electrical distribution, building automation and residential applications.

Working Principle:

The IEL11-32751-1-V circuit breaker utilizes a mechanism driven by a solenoid, which is triggered by an electric current passing through it. When the overload threshold or protection value is exceeded, a bimetallic strip is heated and bend to let the circuit breaker open or break the circuit. When the bimetallic strip cools, it pops back to its original position and allows the breaker to reset and the circuit to be reconnected. This feature also helps to ensure that the breaker operates both in normal operation and during fault conditions. With the tripping position clearly visible and the quick action of the circuit breaker, it prevents long-term overload effects and protects the circuit and the connected equipment.

The breaker is also equipped with a shunt switch, which is triggered at the same time as the bimetallic strip when the protection value is exceeded. This switch allows the circuit breaker to measure not only the short-circuit current and overload current values, but also the residual current. If a ground fault is detected, the shunt switch will detect and trip the breaker from the disconnected state. This feature helps to detect and reduce the risk of electric shock in a residential or industrial environment.

Conclusion:

The IEL11-32751-1-V circuit breaker is a versatile and reliable electronic device for protecting electrical circuits against overloads, short-circuits and ground faults. It features a fast-response tripping mechanism that ensures protection against dangerous high currents. Its low mounting depth makes it suitable for both industrial and residential layouts and the shunt switch makes it possible to detect ground faults. With its durable and efficient design, the IEL11-32751-1-V is an excellent solution for protecting your electrical circuits.

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