1B3UM Circuit Protection

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Circuit Breaker technology has come a long way since its introduction in the 19th century. From the humble beginnings of hot-wire switchboards for low voltage alternating current applications to the sophisticated systems of today, the circuit breaker is an integral part of electrical systems. This article will discuss the 1B3UM application field and working principle of circuit breakers.

A circuit breaker is a protective device designed to disconnect electrical supply in response to an overload or short circuit. It switches off the power when the circuit is in danger of overheating or when it senses that the current flow is excessive. The 1B3UM circuit breaker is certified to UL 1077 standard and is suitable for use as a Branch Circuit Interrupting Device. It is characterized by adjustable instantaneous tripping range, adjustable time delay tripping range and adjustable long-time delay tripping range.

The 1B3UM circuit breaker is typically used in air conditioner, medical equipment, energy storage device and other low-voltage systems with a maximum current limit of 30A. In these applications, the 1B3UM breaker is capable of protecting the load from overcurrent, short circuit and over-temperature conditions. The 1B3UM is also suitable for use in world- wide applications and it complies with Global requirements for Data Centers, Green Buildings, Energy Storage Systems and Marine applications.

The working principle of the 1B3UM breaker is based on the principle of thermal overload. The device is equipped with internal heaters which detect the ambient temperature and calculate the heat generated by the electrical current. When the heat generated reaches a certain level, the breaker triggers and interrupts the flow of current.

The 1B3UM breaker also has adjustable time and current delay tripping ranges. The adjustable time delay range is a feature that enables the device to delay the tripping time of the breaker. This is helpful in the case of large currents which take a longer time to reach their maximum peak value. The adjustable current delay range is a feature that enables the device to limit the tripped maximum current value according to the set level and protect the load from over-current condition.

The 1B3UM also has a built-in switch for manual operation. This feature is useful in the event of a fault or in the case of a power outage. By manually operating the switch, the circuit breaker can be switched-on or switched-off depending on the requirement.

In summary, the 1B3UM is a reliable and efficient circuit breaker suitable for a variety of applications. It can be used in air-conditioning, medical equipment, energy storage devices, and other low voltage systems for over-current, short circuit and over-temperature protection. The adjustable time delay and current delay tripping range features make the 1B3UM breaker suitable for world-wide applications meeting global standards. The manual operation switch is helpful in the case of a power outage or a fault. With its sophisticated features, the 1B3UM breaker is an important part of the electrical system.

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