T21-2-20.0A-01-11A-V

Circuit breakers are vital components used in electric power systems to ensure reliability and safety. The T21-2-20.0A-01-11A-V is a particular type of circuit breaker with specific features which make it ideal for many applications. This article provides an overview of the T21-2-20.0A-01-11A-V application field and its working principle.

Application Field
The T21-2-20.0A-01-11A-V circuit breaker is primarily used in low-voltage electrical systems or distribution boards. It is typically employed as an overload protector, preventing the occurrence of overcurrents or short circuits, and thereby safeguarding the components of the system. It is also used to protect personnel from the risks posed by electrical shock, arc flash, or fire. It is vitally important to take the correct measures to prevent electrical hazards, and the T21-2-20.0A-01-11A-V is designed to help do just that.

Working Principle
The working principle of the T21-2-20.0A-01-11A-V circuit breaker is relatively simple. It has a switch that is connected to an Overcurrent Relay. When a current exceeds the breaker’s rated current, the Overcurrent Relay is activated and it send an electrical signal to the switch, causing it to open the circuit. Once opened, the circuit is protected and can no longer transfer dangerous amounts of current.

In addition to its overcurrent protection, the T21-2-20.0A-01-11A-V circuit breaker also includes a shunt trip device. This is driven by a solenoid, which is activated remotely as a result of a signal and will cause the breaker to trip. The shunt trip device is used as a safety measure when operating or working on the circuit and should be used whenever possible.

To ensure optimal performance, the T21-2-20.0A-01-11A-V circuit breaker should always be installed according to the manufacturer’s instructions. It is also important to regular periodic inspection and maintenance. During such inspections, issues like corrosion, loose connections, and faulty wiring should be inspected thoroughly to ensure the circuit breaker is operating correctly.

Conclusion
The T21-2-20.0A-01-11A-V is a type of circuit breaker, which is mainly used in electrical systems to provide overload and short circuit protection. It has a switch that is connected to an Overcurrent Relay and, when a current exceeds the rated current, the Overcurrent Relay is activated and the switch is opened to protect the circuit. It also includes a shunt trip device which can be activated remotely, which acts as a further safety measure. The T21-2-20.0A-01-11A-V should be installed according to instructions and inspected and maintained regularly to ensure optimal performance.