4120-G214-J1M1-B2S0ZN-4A

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Circuit Breakers

The 4120-G214-J1M1-B2S0ZN-4A is a type of circuit breaker designed to protect electrical circuits from damage due to overloads or short circuits. The device works by detecting an excessive current flow and then automatically disconnecting the power to the circuit.

Application Field

Circuit breakers are an essential part of any electrical system and are used in a vast range of applications. These include residential, industrial, and commercial settings. In residential settings, circuit breakers are typically used to protect lines that feed into individual appliances or electrical outlets. In industrial settings, they are used to protect high-load circuits from damage due to power surges, or to provide protection against worker safety hazards. In commercial settings, they are often used to protect data centers and server rooms from overloads or short circuits.

Working Principle

The 4120-G214-J1M1-B2S0ZN-4A works by detecting an excessive current flow and then automatically disconnecting the power to the circuit. The device has two main components: the thermal contacts, which expand when heated by current, and the tripping mechanism, which senses changes in the thermal contacts. When the thermal contacts expand, the tripping mechanism is triggered, causing the circuit breaker to open and disconnect the circuit from the power supply.

The 4120-G214-J1M1-B2S0ZN-4A also features a manual override switch which can be used to manually disconnect the circuit if needed. This feature allows the circuit breaker to be used as an emergency switch in case of an overload. Additionally, the circuit breaker is equipped with an automatic reset function, meaning it will reset itself after a period of time, allowing it to be used again.

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