911374

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The 911374 is an electromagnetic power relay that provides control and protection in over 2 amp applications. It is designed for operation in a variety of applications, such as motor control, temperature control, light control, and protection. This article will discuss the application fields and working principle of the 911374 power relay.

Application Fields of 911374

The 911374 is designed for general purpose and high performance switching and protection in power systems. It is suitable for applications such as: motor control, transformer protection, current monitoring, over-current protection, over-current begin and end control, static and dynamic overload protection, ground fault protection, short circuit protection, switch control, switching duty, and other general purpose applications.

The 911374 is designed for applications of up to 2 amps maximum current ratings. It is most commonly used for low profile applications where a small footprint is desired. The 911374 also has the ability to support a variety of voltages, such as 12V, 24V, 36V, and 48V.

The 911374 is suitable for outdoor and hazardous locations, including UL Class I, Div 2, Non-Incendive, Intrinsically-Safe and Differential Level Switching.

Working Principle of 911374

The 911374 is an electromagnetic power relay that operates according to the principle of electromagnetism. The relay has a coil, a base, an upper armature, and a lower armature. The coil is energized by an electrical signal, which creates a magnetic field. The magnetic field causes the armatures to move, creating a mechanical connection between the base and the upper and lower contacts. The connection between the upper and lower contacts is called an “over-current trip point”.

The upper and lower armatures are connected by a trip lever, which is set to the desired over-current trip point. When the current passing through the relay reaches the over-current trip point, the upper armature moves up, breaking the connection between the upper and lower contacts. This opens the circuit, protecting the system from further damage.

The 911374 has several features that enable it to provide a high degree of protection and performance. The armature is constructed of a sturdy high carbon material, which allows for superior performance even under high temperature and environmental conditions. The contact covers are designed for minimal arcing at high current levels, providing added protection. Additionally, the 911374 incorporates several testing points that make testing and troubleshooting quick and easy.

The 911374 is also equipped with a variety of signal contacts and test points, which can be used for monitoring and control. The signal contacts allow signals to be sent to and from the relay, providing operators with the ability to monitor, control, and adjust operations as needed. The test points allow for continuous testing of the relay, ensuring proper operation and protection.

Conclusion

The 911374 is an electromagnetic power relay designed for use in over 2 amp applications. It is suitable for a variety of applications, including motor control, transformer protection, current monitoring, over-current protection, and more. The relay operates on the principle of electromagnetism, using a coil and armatures to create a connection between the base and the upper and lower contacts. The relay is also designed for superior performance even in hazardous locations, and is equipped with several signal contacts and test points for tracking, testing, and control.

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