446-K-H-N-50A Circuit Protection

Series:	446
Part Status:	Active
Lead Free Status / RoHS Status:	--
Breaker Type:	Thermal Magnetic
Moisture Sensitivity Level (MSL):	--
Current Rating:	50A
Voltage Rating - DC:	28V
Number of Poles:	1
Actuator Type:	Push to Reset
Illumination:	--
Illumination Voltage (Nominal):	--
Mounting Type:	Chassis Mount

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Circuit Breakers: 446-K-H-N-50A Application Field and Working Principle

Circuit breakers are among the most important safety components of modern electrical systems. Building on traditional mechanical designs, the 446-K-H-N-50A is a miniature circuit breaker that provides circuit protection and isolation. This particular breaker offers significant advantages over traditional designs in terms of its smaller size and greater reliability. In this article, we will discuss the 446-K-H-N-50A application field and working principle.The 446-K-H-N-50A is designed for use in low and medium-voltage electrical systems, providing circuit protection and isolation for up to 1000 Amps. The breaker conforms to the UL 489 Standard and is rated for short-circuit breaking capacity of 24 kA at 480 VAC. It is designed to be installed in conjunction with other circuit breakers in a panel in order to provide multiple levels of protection.The 446-K-H-N-50A is typically used in power-distribution systems, industrial equipment, and motor control systems. It is also suitable for use in residential and commercial water and gas systems. The breaker features two handles, one for on/off operation and one for emergency disconnect, making it ideal for emergency power-off operations.The device consists of a trip unit, trigger mechanism, and contact system. The trip unit is a spring-loaded device that is utilized to detect a short or overload situation in the circuit being protected. It is designed to trip the breaker when a certain amount of current or voltage is exceeded, thus shutting down the power supply.The trigger mechanism, also referred to as the magnetic latching unit, is the device that is responsible for the on/off mode of the breaker when the handle is operated. It is constructed with an iron core and a coil to create a magnetic field. The field interacts with a contact assembly inside the breaker to complete the connection when the handle is switched to the “on” position, and to complete the disconnection when the handle is moved to the “off” position.The contact assembly is designed to transfer current from one side of the breaker to the other. It consists of two sets of metal contacts, which are connected to the trip unit and the trigger mechanism. When the breaker is on, the contacts are closed and power is able to flow through the circuit breaker. However, when the trip unit or the trigger mechanism are activated, the contacts are opened, cutting off the flow of power.In summary, the 446-K-H-N-50A miniature circuit breaker is a compact breaker that is designed for use in low and medium voltage electrical systems, providing circuit protection and isolation. It is suitable for use in a variety of applications, including power distribution systems, industrial equipment, and motor control systems. The device consists of a trip unit, a trigger mechanism, and a contact system. The trip unit is designed to detect a short or overload situation and the trigger mechanism opens and closes the contacts to complete the connection when the handle is on, and to break the connection when the handle is off.

The specific data is subject to PDF, and the above content is for reference