CB187F-135 Circuit Protection

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Circuit breakers are essential components of modern electrical systems. They protect against excessive current flow that can cause damage to equipment, buildings, and even people. The CB187F-135 is one such circuit breaker, designed to monitor, control, and protect a wide variety of electrical equipment and installations. This article will discuss the application field and working principle of the CB187F-135 circuit breaker.

The CB187F-135 is a three pole circuit breaker with a rated current of 125 amps. It is designed to be installed in both commercial and industrial applications, with the intention of providing protection against earth faults, short circuits, and overloads. In addition, this circuit breaker offers protection against nuisance tripping due to inrush currents, false tripping, and delayed tripping. It is capable of withstanding a shock of 5-50 kV, as well as high temperatures ranging from -25℃ to 55℃.

Moreover, the CB187F-135 circuit breaker is designed to be extremely compact, weighing only 116.6 g and measuring 48.5 mm x 75 mm x 87.5 mm. This makes it ideal for use in environments where space is limited, such as residential, automotive, and shipboard applications. Furthermore, this circuit breaker is certified to meet the relevant industry standards, ensuring that it provides reliable protection against excessive current.

Now that we have covered the application field of the CB187F-135 circuit breaker, let us discuss its working principle. This circuit breaker is designed to use a thermal-magnetic tripping system. This system combines the use of a bimetal element with a solenoid coil. When the current flowing through the circuit breaker exceeds the rated value, the bimetal element bends and causes the solenoid coil to activate, which in turn trips the circuit breaker and breaks the circuit.

In addition, the CB187F-135 circuit breaker also uses a secondary current limitation system. This system works by reducing the trip current of the circuit breaker, thus limiting the amount of current that can flow through the circuit. This secondary system provides additional protection against short circuits and overloads. Additionally, the circuit breaker is also equipped with a mechanical lock-out mechanism, which prevents the breaker from being reset unless the circuit is de-energized.

Overall, the CB187F-135 is an excellent choice for a variety of applications. It offers comprehensive protection against overloads, short circuits, earth faults, and nuisance tripping, as well as a mechanical lock-out mechanism for added safety. Furthermore, its compact design makes it a good fit for use in restricted areas, such as automobiles, ships, and residential applications.

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