A Activity diagram used in UML 6/9 and SysML B Bachman diagram Booch used in software engineering Block diagram Block Definition Diagram BDD used in SysML C Carroll diagram Cartogram Catalytic cycle Chemical equation Curly arrow diagram Category theory diagrams Cause-and-effect diagram Chord diagram Circuit diagram Class diagram from UML 1/9 Collaboration diagram from UML 2.0 Communication diagram from UML 2.0 Commutative diagram Comparison diagram Component diagram from UML 3/9 Composite structure diagram from UML 2.0 Concept map Constellation diagram Context diagram Control flow diagram Contour diagram Cordier diagram Cross functional flowchart D Data model diagram Data flow diagram Data structure diagram Dendrogram Dependency diagram Deployment diagram from UML 9/9 Dot and cross diagram Double bubble map used in education Drakon-chart E Entity-Relationship diagram ERD Event-driven process chain Euler diagram Eye diagram a diagram of a received telecommunications signal Express-G Extended Functional Flow Block Diagram EFFBD F Family tree Feynman diagram Flow chart Flow process chart Flow diagram Fusion diagram Free body diagram G Gantt chart shows the timing of tasks or activities used in project management Grotrian diagram Goodman diagram shows the fatigue data example: for a wind turbine blades H Hasse diagram HIPO diagram I Internal Block Diagram IBD used in SysML IDEF0 IDEF1 entity relations Interaction overview diagram from UML Ishikawa diagram J Jackson diagram K Karnaugh map Kinematic diagram L Ladder diagram Line of balance Link grammar diagram M Martin ERD Message Sequence Chart Mind map used for learning, brainstorming, memory, visual thinking and problem solving Minkowski spacetime diagram Molecular orbital diagram N N2 Nassi Shneiderman diagram or structogram a representation for structured programming Nomogram Network diagram O Object diagram from UML 2/9 Organigram Onion diagram also known as "stacked Venn diagram" P Package diagram from UML 4/9 and SysML Parametric diagram from SysML PERT Petri net shows the structure of a distributed system as a directed bipartite graph with annotations Phylogenetic tree - represents a phylogeny evolutionary relationships among groups of organisms Piping and instrumentation diagram P&ID Phase diagram used to present solid/liquid/gas information Plant Diagram Pressure volume diagram used to analyse engines Pourbaix diagram Process flow diagram or PFD used in chemical engineering Program structure diagram R Radar chart Radial Diagram Requirement Diagram Used in SysML Rich Picture R-diagram Routing diagram S Sankey diagram represents material, energy or cost flows with quantity proportional arrows in a process network. Sentence diagram represents the grammatical structure of a natural language sentence. Sequence diagram from UML 8/9 and SysML SDL/GR diagram Specification and Description Language. SDL is a formal language used in computer science. Smith chart Spider chart Spray diagram SSADM Structured Systems Analysis and Design Methodology used in software engineering Star chart/Celestial sphere State diagram are used for state machines in software engineering from UML 7/9 Swim lane Syntax diagram used in software engineering to represent a context-free grammar Systems Biology Graphical Notation a graphical notation used in diagrams of biochemical and cellular processes studied in Systems biology System context diagram System structure Systematic layout planning T Timing Diagram: Digital Timing Diagram Timing Diagram: UML 2.0 TQM Diagram Treemap U UML diagram Unified Modeling Language used in software engineering Use case diagram from UML 5/9 and SysML V Value Stream Mapping Venn diagram Voronoi diagram W Warnier-Orr Williot diagram Y Yourdon-Coad see Edward Yourdon, used in software engineering
The following are industry accepted relay schematics and forms that GIGAVAC uses for most of its relays. Single Pole Single Throw – Normally Open (SPST NO) Form A. Single Pole Single Throw – Normally Closed (SPST NC) Form B. Single Pole Double Throw (SPDT) Form C. Double Pole Double Throw (DPST NO) 2 Form C.
Normally Open NO, Form A Normally Closed NC, Form B Changeover CO, Form C, SPDT Forced Guided Contacts: Electro mechanical relay contacts that are mechanically linked together, so that when the relay coil is energized or de energized, all of the linked contacts move together. If one set of contacts in the relay becomes immobilized, no other
Relays are classified by their number of poles and number of throws. The pole of a relay is the terminal common to every path. Each position where the pole can connect is called a throw. A relay can be made of n poles and m throws. For example, a single pole single throw (SPST) relay has one pole and one throw,...
Home Mobile Electronics Basics Relays Relay Wiring Diagrams Dozens of the most popular 12V relay wiring diagrams created for our site and members all in one place. If you need a relay diagram that is not included in the 76 relay wiring diagrams shown below, please search our forums or post a request for a new relay diagram in our Relay Forum .
Relays are switches that open and close circuits electromechanically or electronically. Relays control one electrical circuit by opening and closing contacts in another circuit. As relay diagrams show, when a relay contact is normally open (NO), there is an open contact when the relay is not energized.
The square relay pinout shows how the relay socket is configured for wiring. This pinout image is only a 2 pole diagram for room on the page purposes, but you can get the picture here with this one since a 3 pole will just have 1 more set of contacts.
Normally open (or NO) contacts connect the circuit when the relay is activated; the circuit is disconnected when the relay is inactive. This type of relay is also referred to as "Form A" or a "make" contact. Normally closed (or NC) contacts disconnect the circuit when the relay is activated; the circuit is connected when the relay is inactive.
Make & break relay : The most simple form of relay. The circuit between terminals 30 and 87 is made on energisation of the relay and broken on de energisation, known as NO (or vice versa for a NC relay). Changeover relay : Two circuits (terminals 87 and 87a ) have a common terminal (30).