W51-A122B1-5

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Circuit Breakers are used in many applications to protect circuits from overload and short circuit by opening and closing electrical circuits rapidly. This can prevent damage to the circuit and the connected equipment, but the most important use of circuit breakers is to protect people and the environment from electric shocks. The W51-A122B1-5 is one such circuit breaker whose application field and working principle will be discussed in this article.

W51-A122B1-5 is a miniature circuit breaker with a rated current of 1 to 10A, suitable for both DC and AC applications. The main application field of the W51-A122B1-5 is domestic and light commercial applications where the circuit load is low. It is used for protecting the circuit from over-current and short circuit protection, for example in residential or commercial applications, protecting circuits in conditions where water heaters or washing machines are used. It can also be used in industrial lighting and power distribution panels.

The working principle of the W51-A122B1-5 is based on the thermal/magnetic current interruption. When an overload or short circuit occurs in a circuit, the current rises rapidly to a dangerous level, which causes a heat coil inside the circuit breaker to expand. The heat coil is connected to the trip lever, and the expanding coil moves the trip lever, which in turn releases a latch that trips the contacts of the circuit breaker, opening the circuit.

In addition to the thermal/magnetic current interruption, the W51-A122B1-5 also has a galvanometer to detect the movement of the trip lever. This feature allows the circuit breaker to sense an overload or short circuit before the trip lever is moved, which then triggers the circuit breaker to trip without waiting for the coil to expand. This provides additional protection to the circuit.

The W51-A122B1-5 also comes with an adjustable current setting. This allows the user to set the current that will trip the circuit breaker, giving the user more control over the circuit breaker’s protection. This setting can be adjusted to match the load of the circuit, ensuring adequate protection for the circuit.

The W51-A122B1-5 is a reliable, cost-effective solution for providing overload and short circuit protection in domestic and light commercial applications. Its thermal/magnetic current interruption system and galvanometer provide fast and reliable protection, while its adjustable current setting allows the user to customize the protection to match the circuit’s load. In short, the W51-A122B1-5 is an ideal solution for protecting circuits from overload and short circuit.

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