SU2D40UC

Series:	SUxxxUC
Part Status:	Active
Lead Free Status / RoHS Status:	--
Breaker Type:	Thermal Magnetic
Moisture Sensitivity Level (MSL):	--
Current Rating:	40A
Voltage Rating - AC:	480V
Voltage Rating - DC:	125V
Number of Poles:	2
Actuator Type:	Lever
Illumination:	None
Illumination Voltage (Nominal):	--
Mounting Type:	DIN Rail

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Introduction

A Circuit Breaker is a protective device used to protect electrical circuits from overload and from fault conditions that could lead to fire and/or electric shock. Circuit breakers can be found in various forms such as thermal, magnetic and electronic devices. The SU2D40UC is a thermal circuit breaker that contains two functions: overvoltage protection and overcurrent protection. This circuit breaker is capable of being used in a wide variety of environments and industrial applications.

Features

The SU2D40UC has a wide range of features that make it desirable for many different industrial applications. One of the main features is its capability to handle high current loads and voltage drops. This feature makes the SU2D40UC ideal for applications such as commercial and industrial machinery, telecommunication equipment, and industrial power control systems.The SU2D40UC has a trip current range from 6 amps up to 40 amps. This range means it can be used in applications such as single-phase, three-phase, and MOT combinations. It also has a UL 1077 recessed trip button, which allows for manual resetting.The SU2D40UC also has a UL 489 compliant rating, which is important for applications requiring protection from short-circuits and overloads. This rating means the circuit breaker can handle up to 5,000 volts and 400 amperes of short-circuit current.Another great feature of the SU2D40UC is its ability to operate at a wide range of temperatures, from -25 to +90°C (-13 to +194°F). This wide range makes the SU2D40UC suitable for numerous applications, such as industrial and commercial applications that produce high heat, as well as equipment that’s used outdoors and must withstand extreme temperatures.

Application Fields

The SU2D40UC is a well-rounded circuit breaker that’s capable of being used in a variety of applications. One of the most common uses for this breaker is to provide power to electrical motors and other large equipment. It can also be used in applications such as air compressor systems, cooling systems for electrical equipment, and to protect electrical components from overheating and shock.The SU2D40UC is also suitable for industrial control systems and can be used for applications such as power distribution, protection of X-ray equipment, and to shut off power to certain circuits in the event of an overload or other fault. Additionally, the SU2D40UC is often used in construction sites and military applications due to its high current ratings and ability to operate in extreme temperature environments.

Working Principle

The SU2D40UC works by using two distinct principles: overvoltage protection and overcurrent protection. When the circuit breaker is triggered, the overvoltage protection prevents the voltage from entering the circuit by closing off the incoming power before it can enter the circuit. This helps to protect any connected electrical components from damage caused by high voltages.The overcurrent protection works by monitoring the current in the circuit. When the current exceeds the threshold of the circuit breaker, it will open the connection, shutting off the power to the circuit. This prevents the circuit from overloading and causing damage.

Conclusion

The SU2D40UC is a thermal circuit breaker that is widely used in a variety of applications, ranging from industrial and commercial applications to military applications. It features a wide current rating, a UL 1077 recessed trip button, and is UL 489 compliant. In addition, it has a wide operating temperature range, making it suitable for a variety of different environments and applications. The SU2D40UC works by using overvoltage and overcurrent protection, ensuring that the connected equipment is protected from overloaded and high voltages.

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