LELB1-1-51-25.0-1-01-V

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Circuit Breakers: LELB1-1-51-25.0-1-01-V Application Field and Working Principle

Circuit breakers are essential components of any electrical power system, preventing dangerous and costly overloads from occuring. The LELB1-1-51-25.0-1-01-V circuit breaker is a high-performance device suited to applications within industrial, commercial and residential electrical systems. In this article, the application field and working principle of the LELB1-1-51-25.0-1-01-V circuit breaker will be covered.

Application Field

The LELB1-1-51-25.0-1-01-V circuit breaker is suitable for use in a variety of wide voltage ranges, including AC systems rated from 690V up to 1200V, and a DC system rated from 125VDC up to 1000VDC. It is also able to operate within a current range from 25A up to 63A, making it suitable for use in a range of residential, commercial, industrial and electrical distribution systems. Furthermore, the device has a number of useful features to meet the requirements of any user. For instance, it is designed for both fixed and pole-mounted installation for greater versatility. It also has built-in self-adjusting thermal and magnetic trip components, providing a reliable safety system for preventing dangerous overloads.

The LELB1-1-51-25.0-1-01-V circuit breaker is shockproof, water-resistant and suitable for use in ambient temperatures of –25oC to +60oC. It is also compact and light enough to be comfortably handled. As a result, it is an ideal device for use in both indoor and outdoor applications, as well as in hazardous locations with elevated humidity, dust, and temperature levels.

Working Principle

The LELB1-1-51-25.0-1-01-V circuit breaker is covered by a plastic mold shell, which houses a number of interior components. It utilizes the combination of a pre-set thermal tripping device and a manually adjustable magnetic tripping device. The thermal component works by analyzing the heat produced by electrical current. As the current increases, so does the heat, which eventually triggers the thermal trip component, thereby activating the circuit breaker.The magnetic component works by measuring the total ampere-turns of the current, meaning that it monitors the flow as well as its intensity. If the ampere-turns exceed a certain threshold, the magnetic tripping component is triggered and the circuit breaker will switch off and stop the current flow.The built-in protection device is also able to detect short-circuit faults and trip the circuit breaker rapidly, between 0.1s and 0.2s, thereby preventing destruction of life and property.

The LELB1-1-51-25.0-1-01-V circuit breaker also features an easy reset switch and a manual operating switch. The reset switch allows the device to be reset quickly, while the manual switch manually opens and closes the circuit breaker in accordance with user commands. It is also equipped with an off-delay timer, which prevents overloading by preventing the circuit breaker from closing for 3-7 seconds after it has been activated.

Overall, the LELB1-1-51-25.0-1-01-V circuit breaker is a versatile, robust and reliable device perfectly suited to a range of residential and industrial applications. It is highly durable, hard-wearing and able to withstand a range of hazardous conditions. Furthermore, the device has a number of advanced features, including two trip components and a range of additional protections, providing the user with a reliable and safe electrical system.

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