B21-3-15.0A-01-10BL-V

Series:	*
Part Status:	Active
Lead Free Status / RoHS Status:	--
Moisture Sensitivity Level (MSL):	--

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Introduction

Circuit breakers are electrical safety devices designed to protect electrical circuits from short circuits and overloads. They are used to ensure that the electrical systems remain safe and functional, and are incredibly important in preventing injuries and damages to electrical systems. The B21-3-15.0A-01-10BL-V is an example of a circuit breaker, and this article takes a look at its application field and working principle.

Application Field

The B21-3-15.0A-01-10BL-V circuit breaker is designed to be used in medium and low voltage applications in indoor and outdoor environments, such as distribution and protection circuits. This type of circuit breaker is typically rated at either 50kA or 100kA and can be used in a variety of applications. It has a wide range of additional features such as adjustable trip curves, adjustable trip and closing time delays, adjustable time carry current, adjustable trip current and adjustable high-current pick-up levels.

Working Principle

The B21-3-15.0A-01-10BL-V circuit breaker is a thermal-magnetic type breaker and it operates in two stages. The first stage is the thermal operation, which is activated when the current on the breaker reaches its adjustable high-current pickup level. This causes the heater in the breaker to heat up and expand, which trips the breaker and breaks the circuit connection. The second stage is the magnetic operation, which is activated when the current on the breaker reaches its adjustable trip current level. This activates the electromagnet in the breaker, which then trips the breaker by mechanically displacing the components in the breaker. Overall, the B21-3-15.0A-01-10BL-V circuit breaker is designed to provide effective protection, and its ability to sense currents and trip the breaker quickly makes it one of the most reliable circuit breakers in the market. This type of circuit breaker is usually chosen for applications that require a higher level of protection, as it is designed to provide accurate and reliable circuit protection.

Conclusion

The B21-3-15.0A-01-10BL-V circuit breaker is a reliable and efficient safety device that can be used in the majority of medium and low voltage applications. It features an adjustable trip and current curve, as well as adjustable time delays. This makes it an ideal choice for applications that require a higher level of protection, as it can sense current levels quickly and trip the breaker accordingly to protect the system.

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