![]() They are normally ON, but disconnected to turn OFF when the switch is toggled. Form C contacts structured by combining Form A and Form B contactsĮven the same contact method has various names.įorm A contacts are normally OFF, which doesn't allow any current to flow in the switch circuit, and turn ON to allow current to flow when the switch is toggled.įorm B contacts work in the opposite way.Form B contacts (called normally closed (NC) contacts).Form A contacts (called normally open (NO) contacts).In general, the following contact methods are used for switches. This type of information can be assessed through figures representing model numbers.įirst, the following descriptions explain the differences between the terms single throw and double throw of "the number of poles and operating characteristics." are used for indicating the operating characteristics. Next, let's have a look at the designations of generally used contact types and of the contact types used for our toggle switches.Īs shown in Figure 1, the designations of Panasonic toggle switches are specified using the combination of the "number of poles and operating characteristics." Use examples include "single pole, single throw," "single pole, double throw," "double pole, single throw," and "double pole, double throw." In addition, the designations of ON-ON and ON-OFF, etc. For example, to help you understand, imagine a scene from an old science fiction movie in which a robot or ship is being operated with switches, etc., whose levers were moved up and down with a snapping sound. Toggle switches are generic switches that are turned ON and OFF by moving their levers. In addition, can you elaborate on the relationship between them and the terms "single side cut off," "double side cut off," and "three-way switch"?Īnswer: The following descriptions explain the designations of generally used contact types and of the contact types used for our toggle switches.įirst, let's examine the basics of toggle switches. I do not have a proper understanding of the details and differences between them. Question: There are several designations of contact types, including "single pole single throw," "single pole double throw," "ON-OFF," and "ON-ON" type contacts. ![]() Please make use of this information and expand your knowledge of toggle switches. KPMG International’s Trademarks are the sole property of KPMG International and their use here does not imply auditing by or endorsement of KPMG International or any of its member firms.In reply to customer questions, this article describes toggle switches ranging from the basics to contact types and designations. The KPMG name and logo are trademarks used under license by the independent member firms of the KPMG global organization.Simplilearn and its affiliates, predecessors, successors and assigns are in no way associated, sponsored or promoted by SAP SE and neither do they provide any SAP based online or real-time courses or trainings.CISCO®, CCNA®, and CCNP® are trademarks of Cisco and registered trademarks in the United States and certain other countries.CISSP® is a registered mark of The International Information Systems Security Certification Consortium ((ISC)2).CISA® is a Registered Trade Mark of the Information Systems Audit and Control Association (ISACA) and the IT Governance Institute.COBIT® is a trademark of ISACA® registered in the United States and other countries.Certified Business Analysis Professional, EEP and the EEP logo are trademarks owned by International Institute of Business Analysis. CBAP® is a registered certification mark owned by International Institute of Business Analysis.IIBA®, the IIBA® logo, BABOK® and Business Analysis Body of Knowledge® are registered trademarks owned by International Institute of Business Analysis.The Open Group®, TOGAF® are trademarks of The Open Group.The APMG-International Finance for Non-Financial Managers and Swirl Device logo is a trade mark of The APM Group Limited.Professional Scrum Master is a registered trademark of.Certified ScrumMaster® (CSM) and Certified Scrum Trainer® (CST) are registered trademarks of SCRUM ALLIANCE®. ![]() MSP® is a trade mark of AXELOS Limited, used under permission of AXELOS Limited.PRINCE2® is a trade mark of AXELOS Limited, used under permission of AXELOS Limited. ![]()
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