JLM-2-2REC4-39811-250-V Circuit Protection

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Circuit Breakers - JLM-2-2REC4-39811-250-V Application Field and Working Principle

Circuit breakers are essential devices that are used widely in the electrical industry, with the JLM-2-2REC4-39811-250-V being one of the most common. They are used to prevent overcurrents or short circuits, which may cause dangerous situations if left unchecked.

The JLM-2-2REC4-39811-250-V breaker is specifically designed for applications that require a high breaking capacity and short circuit making capacity. It is an economical solution for applications that require a low cost, medium-rated breaker. This type of breaker is often used in distribution and residential electrical systems.

The JLM-2-2REC4-39811-250-V breaker has two contact sets that are made of stamped aluminum with an epoxy/clay blend which provides maximum contact reliability. The contacts are rated for 230-volt and 250-volt AC, and the contact resistance is less than 12 ohms. The breaker is UL listed for branch circuit protection.

The JLM-2-2REC4-39811-250-V breaker is typically used in circuits that require a higher breaking capacity than standard residential breakers and short circuit ratings higher than those required for residential systems. This high breaking capacity is obtained from the breaker’s main contacts, which employ two independent, parallel sets of contacts. The secondary contacts are coupled either in series or parallel to offer greater redundancy.

The working principle of a circuit breaker is relatively simple. When an electrical current passes through the breaker, the metal contacts create heat which expands the bimetal. This expansion causes the bimetal flap to move and open the circuit, thus breaking the current and preventing the circuit from being overloaded. When the current drops below the breaking capacity, the bimetal cools and the circuit is closed again.

In the case of the JLM-2-2REC4-39811-250-V breaker, the main contacts open first when the current reaches the breaking capacity, and the secondary contacts open if the primary contacts cannot open quickly enough. This ensures that the breaker can handle an overload even if the main contacts are slow to open. Additionally, the contacts are also designed to snap open quickly in the event of a short circuit, and the contacts are designed to close quickly after the short circuit situation is cleared.

The JLM-2-2REC4-39811-250-V breaker is one of the most popular types of breakers used in the electrical industry. This breaker is reliable and economical, and it is useful for a variety of applications. Its dependable working principle ensures that the circuit is never overloaded or short circuited. For reliable and cost effective circuit protection, the JLM-2-2REC4-39811-250-V breaker is a great choice.

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