Industry News
What is the use of the two contacts of the normally open and normally closed button switch?
Views : 5246
Author : HBAN PUSH BUTTON SWITCH
Update time : 2022-03-18 09:00:32
It is used when the button is self-locking, and the emergency stop is generally normally closed. There is no difference between NO1, NC1, and NO2 and NC2.
Normally closed contacts are used to close the circuit when you press it down.
Under normal circumstances, there will be a maintenance relay in this circuit to keep the circuit connected. That way when you release the button, the loop remains energized through that hold relay, allowing the system to function properly.
Until a termination signal such as a key off or an emergency stop arrives.
Related News
Read More >>
HBS1-AGQ Series Product Introduction | HBAN Push button
Jul .11.2025
HBS1-AGQ series metal push button switches are designed for complex working conditions and multi-scenario control. They have 5A/250V load compatibility, IP67 protection grade and IK09 impact resistance. They support a variety of lamp types and installatio
Understanding Illuminated Pushbutton | HBAN Push button
Jun .09.2025
This comprehensive guide explores the functionality, applications, and maintenance of illuminated pushbuttons. Learn how these LED-equipped switches enhance usability, safety, and design across industrial and DIY projects.
Normally Open Push Button Working Principle and Application | HBAN Push button
May .16.2025
This article introduces the commonly used normally open (NO) push button switch in the field of electrical control in an easy-to-understand way. From its basic concepts and working principles to a wide range of application scenarios, selection points, and
1NO1NC Push Button Switch Guide | HBAN Push button
Apr .23.2025
Learn everything you need to know about 1NO1NC push button switches—how they work, where to use them, how to troubleshoot common issues, and how to choose the right model for your system.
Upgrade your control system today with a reliable, space-saving
Upgrade your control system today with a reliable, space-saving
