JLE-1-1-53-3-B4-250

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Circuit breakers are a safety device which provide automatic protection against electrical overloads and short circuits. They are used to protect wiring from becoming overloaded or short circuited, and to protect appliances from becoming damaged due to excessive current. The JLE-1-1-53-3-B4-250 is a model of circuit breaker that is suitable for use in both residential and commercial installations.

Overview

The JLE-1-1-53-3-B4-250 circuit breaker is a three-pole, two-pole, single-pole, centralised, fixed-setting, direct-acting, on-load breaker with a range of rated short circuit breaking capacity. It has a direct operating current of 250A and a maximum operating voltage of 400V/50Hz. The overall dimensions of the breaker are as follows: length (excluding trip box) = 161mm, width = 95mm, height = 170mm.

Application Field

The JLE-1-1-53-3-B4-250 circuit breaker is primarily designed for use as a residential and commercial main distribution board. However, it is also suitable for use in sub-mains distribution boards, feeders, motor control centers, UPS systems and generators. It can also be used in industrial and special applications, including high resistance grounding, static transfer switch systems and motor control from a common contactor.

Working Principle

The JLE-1-1-53-3-B4-250 circuit breaker is a direct-acting type breaker, which operates on the principle of thermal-magnetic action. In normal operation, the thermal-magnetic device is in a closed position, allowing the current to flow freely through the breaker. When the current exceeds a preset level, the thermal element within the breaker responds by releasing a set of contacts onto the circuit. This will cause the circuit to be disconnected, thereby preventing any further damage from occurring.

The JLE-1-1-53-3-B4-250 circuit breaker is also fitted with a spring-return mechanism, which ensures that the breaker is reset automatically when the overcurrent condition has been cleared. The reset time for this breaker is typically less than 10 milliseconds. Additionally, a manual reset button is provided on the breaker, which allows it to be manually reset for continued operation.

Conclusion

The JLE-1-1-53-3-B4-250 circuit breaker is a reliable and robust safety device which is suitable for use in a variety of residential and commercial applications. It provides effective protection against overcurrents and short circuits, and can be reset quickly and safely in the event of an overload or short circuit. In conclusion, the JLE-1-1-53-3-B4-250 is an excellent choice for both residential and commercial applications, providing reliable protection from electrical dangers.

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