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Circuit Breakers

The LELZXK121-1REC5-37199-70 circuit breaker is a highly versatile electrical safety device designed to protect circuits, systems, and individuals from high current overloads. It is an essential component of any reliable electrical system, as it prevents system damage and associated downtime while also protecting personnel from electrical shock.

Applications Field

Circuit breakers are suitable for a variety of industrial and residential applications including power distribution systems, arc and flame detection systems, motors, heating and cooling systems, and even solar systems. They are capable of detecting and stopping shorts, overloads, and overtemperature conditions. In addition, they can also be used to prevent dangerous events such as arc flashes.

In commercial and industrial applications, circuit breakers are essential components in ensuring the safe operation of electrical systems. They are designed to protect components from damage due to over-voltage, over-current, and short circuit conditions. Different types are suitable for a wide variety of applications, such as large industrial control centers, commercial and residential power distribution systems, and even aircraft.

Working Principle

Circuit breakers are designed to detect an electrical fault and automatically cut off the current. If the fault is short-circuit related, the breakers may also trip on overloads. When this happens, the circuit breaker typically trips out on a thermal-magnetic trip unit that is designed to detect both an overload and a short circuit.

The thermal-magnetic trip unit operates by measuring the temperature of the circuit breaker. When the temperature exceeds a preset limit, the circuit breaker trips and breaks the current flow. This is done to prevent circuit damage and protect personnel from electrical shock. Similarly, the magnetic trip unit can detect an overload current condition and will trip out on a pre-set trip setting to prevent circuit damage and personnel endangerment.

The LELZXK121-1REC5-37199-70 circuit breaker is designed to offer safe and reliable circuit protection for a range of electrical applications. It is a robust device with a high-quality trip unit and a rugged design, making it an ideal choice for applications that require reliable operation.

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