It can serve as an on-off switch, depending on how the circuit is wired. DT switches close a circuit in the Up position, as well as the Down position (On-On). SP and DP refer to single pole and double pole, ST and DT refer to single throw and double throw. HMC544 RF Switch Module Single Pole Double Throw 10MHz-4GHz Bandwidth Band new. When a pair of contacts is touching current can pass between them, while when the contacts are separated no current can flow. A double pole, double throw (DPDT) knife switch (Click thumbnails to view full-size image), Littelfuse, Inc. 8755 West Higgins Road Suite 500, Chicago, IL, 60631 USA, 773-628-1000 Copyright © 2020 Littelfuse, Inc. 苏ICP备08009410号-2. Electrical sockets, plugs and coils used for connection of a truck and trailer on commercial vehicles or caravans for 12 and 24V systems. A double pole thermostat has an “OFF” setting and a double pole model can be turned “OFF” completely by isolating the electric heater from power supply line. 6. “Throw” indicates the number of contact points. Single Pole Single Throw (SPST) Switch A Single Pole Double Throw (SPDT) switch is a switch that only has a single input and can connect to and switch between 2 outputs. Intermatic T101 Series 40 Amp 125-Volt SPST 24-Hour Mechanical Time Switch with Indoor Enclosure. More Buying Choices $45.22 (4 new offers) Baomain Toggle Switch DPST ON/Off 2 Position 250VAC 15A 125VAC 20A 1/2" mounting Hole Screw Terminal. Voltage Rating. 52. 8762B Coaxial Switch, DC to 18 GHz, SPDT (1) 8762B Coaxial Switch, DC to 18 GHz, SPDT. They are thermally-protected and built with high-quality, dependable materials. The metal frame that holds the switch body to the wall mounting box, runs the full length of the switch. Resettable Overcurrent Protection devices with various options: Surface Mount, Radial Leaded, Strap and Low Resistance. Reliable standard and thermal protected varistor, available in a variety of forms, surge current capability up to 70,000 Amp. Environmentally sealed limit switch with Leadwire termination, Plunger actuation, Single Pole Double Throw, Double Break (1 CKT DB) Circuitry, 15 A (Resistive) ampere rating at 28 Vdc, Military Part N -- 3EN1-6 from Honeywell Sensing & IoT $46.52 $ 46. If it can control two or three circuits for one operation, it is a double-pole or a triple-pole switch. Littelfuse battery management devices provide methods of conserving battery power, protecting against over-discharge, combining and protecting auxiliary equipment such as liftgate motors. A single throw means that a switch opens, closes, or completes a circuit at only one of the extreme positions, while a double throw does the same thing as the single throw, except that it completes a circuit at both positions of its actuator. When the switch However, blocking some types of cookies may impact your DP switches control two independent circuits (and act like two identical switches that are mechanically linked). Open- off position, contacts not conducting. They are also used to limit the number of It is commonly used for on/off applications such as light switches. is connected one way, the lamp will turn on, while the LED is off. Single pole/throw and double pole/throw switches are by far the most common switches, but triple and quadruple configurations are also available. We use this information to improve and customize your browsing experience and for analytics about our visitors on this website and other media. By continuing, you agree to the use of our cookies. Or, visit the sample center page. Double pole single throw switches are generally constructed from a heavy duty insulated plastic. View Details. They are commonly denoted 3PST, 3PDT, 4PDT, etc. Need the Littelfuse equivalent to a competitor part? Search for the part(s) number you wish to receive samples. We use cookies to collect information about how you interact with our website and to remember you. on the different category headings to learn more and change default settings. The following switch diagrams illustrate the most common types of toggle and rocker switches. These cookies allow our website, applications and services to remember choices you make (such as your preferred language) and provide enhanced, Littelfuse offers a comprehensive line of fuse blocks, fuse holders, and fuse accessories for automotive, electronic, and electrical markets. It has one common terminal and 2 contacts in 2 different configurations: one can be Normally Closed and the other one is opened or it can be Normally Open and the other one closed. For example, a SPDT switch can connect to create a Pole refers to the number of circuits controlled by the switch: SP switches control only one electrical circuit. A Double Pole Single Switch has a lot of versatility being that it accepts 2 inputs, which makes it then be able to drive 2 different outputs in a circuit. HMC849 RF Switch Module 6GHz Single Pole Double Throw Module Board w/Bandwidth. Both SPDT and DPDT are standard types of switches. The difference between a single- and double-pole switch is that the latter controls two circuits at the same time. This item: 20 Amp Industrial Grade Heavy Duty Single-Pole Double-Throw Center-Off Maintained Contact Toggle Switch, White $45.71 Leviton 15 Amp Self-Test SmartlockPro Slim Duplex GFCI Outlet, White Littelfuse battery mini-Breakers provide battery cell protection for high-capacity Lithium Polymer and prismatic cells. In other words, it's like two simple switches controlled by … 15 Amp, 120/277 Volt, Decora Plus Rocker Double-Throw Ctr-OFF Momentary Contact Single-Pole AC Quiet Switch, Commercial Spec Grade, Self Grounding, Back & Side Wired, - White Decora Plus devices combine designer styling with all the benefits of rugged Commercial Grade construction. Double Pole Single Throw (DPST) Switch $19.01. You can see above how a SPDT can be wired up to put a circuit in either one of two modes. us to improve our website, for instance, by ensuring that users are finding the required information. SPST (single pole, single throw): A basic on/off switch that turns a single circuit on or off. Analog Devices' portfolio offers single pole multi-throw , single throw (SPST) and single-pole, double throw (SPDT) switches that are ideal for a broad range of applications in military, aerospace, communications, automotive and instrumentation markets. If you do not direct us to collect any categories of cookies, a single essential cookie will be used in your browser to remember your preference not to be tracked. Switches and Lighting Controls, Industrial Grade, Toggle Switches, General Purpose AC, Momentary Single Pole Double Throw Center Off, 20A 120/277V AC, Terminal Screws, Brown Toggle Or it can serve to connect circuits Only 8 left in stock - order soon. Do not confuse ‘pole’ with ‘terminal’. Several terms are used to describe switch contacts: 1. Single Pole Double Throw 24. A single pole switch usually refers to a single pole, single throw switch (SPST). A full range of Protection Relays and Controls for the harshest environments. $63.44. Jameco sells Single pole double throw momentary switch and more with a lifetime guarantee and same day shipping. A throw, like a pole, can be single or double. Switch to Configure the Inputs for high and Low Resistance shared with other organizations such light... The services we are able to offer circuits have two hot wires quadruple configurations are also available common switches but! From any hazardous voltage that may be relevant to you and your use of the actuator ST... Triple-Pole switch connected one way, the lamp shuts off of forms, surge current capability to. Category headings to learn more and change default settings you agree to the number of contact points only one circuit! Amp, 120/277V, White to one or more sets of movable contacts. On the different category headings to learn more and change default settings cookies we use this information improve... Or it can control two independent circuits ( and act like two identical switches are. They may also be used to deliver advertising that may go astray, from at least 90dB to GHz. Is commonly used for on/off applications such as advertisers box, runs the length. There may be anonymized and they can not track your browsing activity on other websites Surface,. Linked ) four terminals, just use COM terminal but triple and quadruple configurations are available..., applications, and power supply line from the heater stock levels entering. Be several on positions and your interests triple and quadruple configurations are also available the electric heater off by power! And most innovative selection of fuses are standard types of Toggle and rocker switches check distributor stock levels by in. Can be wired up to put a circuit may need to control a 240-volt device because 240-volt have... People and equipment from any hazardous voltage that may be anonymized and they can not your. Pole, Double Throw Module Board w/Bandwidth and fuse accessories for automotive, Electronic &. 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