CBC-20B

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Circuit breakers are commonly used for protection and switching applications. The CBC-20B is a type of circuit breaker that provides protection for electrical systems, machines, or components from high temperatures, overloads, and short circuits. It is designed to prevent damage and give a faster response time when a fault is detected. The CBC-20B provides protection of loads with current ratings up to 50A, interrupting capability of up to 25kA, and a dual-action switching design that ensures reliable operation.

The CBC-20B is a two-pole circuit breaker that is composed of two individual breakers, one for each pole of the circuit. Each breaker can handle up to 50A of current, and they are connected in series, with both breakers being required to trip in order to open the circuit. This means that if one breaker detects a fault, the other breaker will remain closed until a more severe fault is detected by both breakers.

The CBC-20B is designed with a number of features that make it suitable for a wide range of applications. It has a UL listed mechanical interlock system that offers reliable operation, a manual reset override feature that allows for quick and easy resetting of the breaker, and a red indicator lamp which shows the breaker is tripped. Additionally, it has an arc-fault protection system (AFCI) that provides additional protection for the electrical system or component by detecting arc faults and interrupting the power supply if necessary.

The CBC-20B\'s working principle is based on the use of two separate and independent overload relays. When the internal temperature of the breaker reaches a preset level, or when an overloaded current is detected, an overload relay breaks the electrical connection and opens the two circuits, thus interrupting the current flow and protecting the system. For short circuit protection, a trip unit is used to detect when the current exceeds a preset level and quickly open the two circuits.

The circuit breaker has two distinct purposes, one is to cut off power whenever there is an abnormally high current, and the other is to switch power on and off reliably. With the CBC-20B, both operations can be performed confidently. As such, it is suitable for a wide array of applications including domestic, commercial, and industrial systems, making it a reliable and versatile choice for many different situations.

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