Momentary Relay Switch

What is momentary relay switch?

A momentary relay switch is any switch that’s active for a very short time. It reflects the continuous pressure of a button or other input device, and it typically makes a “click” sound when activated.


This kind of relay can be used to make many different kinds of switches, such as those on electronic keyboards or dials on electronics. For this reason, they’re an important component in helping people test their electronic devices to ensure there are no defects– they’re widely used in manufacturing plants worldwide. Momentary contacts are also useful in everyday life because while we push something like a doorbell, it sends a signal indicating that there is someone outside- and the light goes on!

Do you wire a dpdt momentary switch with an additional relay?

No. There are two main types of switches, aka “pole” and “throw”. A momentary switch has a single pole, so you should use a on/off momentary switch to activate your primary dpdt relay throw-switch (similar to the DS18S20 with 120 Volt stamping surface ). This will allow your circuit-breaker or other device contactors to turn off the circuit if for some reason the on/off control fails.

How to de energize a relay using a momentary switch?

Connect the coil of a relay to one terminal of the momentary switch and connect the other terminal to an adjacent pin (usually 20). Now when you press down on the button, it connects those two terminals and completes an electrical circuit. If your relay is normally isolated from other components then double check that it’s still isolated after adding extra elements to its circuitry. Otherwise your de “energizing” switch may be energizing everything as much as before. If you’re unsure about whether or not something is isolated after adding some extra parts, google search for circuit diagrams with analogous layouts to yours and read up on troubleshooting common problems like short circuits.

How to remote control simple relay momentary switch?

You need 2 digital outputs. Connect one of them to the power for your DIO switch. Connect the other to an output pin on the ESP8266 board. Write a program that listens for POST requests and when it gets such a request, it pulses that second digital output line ON or OFF correspondingly.

What is a 12vdc momentary relay switch?

A relay is an electromechanical device that electrically operates a switch, permitting the operator to control high voltage and current circuit by hand-operated mechanism usually involving a solenoid. A relay consists of an electromagnet (the pull-in coil) that controls a switch (which can be mechanical or solid state). The most common type is the double-throw changeover relay which alternates between two contact sets. A momentary push button switch provides power to control one set of contacts while at rest. Pushing or holding down the rocker button turns on power to operate both the other contact set in sequence as well as turning off all outputs when released.

How to make a zwave relay device a momentary switch?

There are a few ways that you can use to make any Z wave relay device function as a momentary switch. One way is by using the Indigo Tamer, which is an iOS mobile app and web service that allows you to script rules and automation within your home.
-In the Indigo Tamer go to rule editor then touch ‘+’ -> Manage Rules -> Add Rule
-In Rules Editor add data name (ON)
-Add Action (Set Variable: Home Security Status)
-Touch “EDIT” and enter the details for data type ON, value 0, time delay 1 minute, Actions (set variable). All other values should be input with ‘0’. THEN press SUBMIT.

Latching relay circuit momentary switch

In order to latch a relay circuit momentary switch, you will need at least two relays. The first one switches the power source on and off constantly, and the other will be switched on continuously by pressing the drive button. You can then use this new state of power supply from relay as input for another device, such as remote control car or servo motor etc.

Bestseller No. 1
QIACHIP DC 12V 1CH 433Mhz RF Wireless Relay Remote Control Light Momentary Switch Transmitter with Receiver (1relays)
  • QIACHIP The remote relay adopts RF technology, with long remote control distance and stable signal.
  • The receiving module provides high signal sensitivity at lower cost and resist interference for excellent stability.
  • The rf relay adopts non-directional wireless encoding technology, allowing independent control without mutual interference.
  • The programmable rf transmitter and receivers can be flexibly configured in quantity and in operating modes.
  • It is widely used in industrial control and security fields, such as light, motor, remote controller, wireless security alarm, wireless door alarm, wireless controller, etc.
Bestseller No. 2
QIACHIP 433MHz Universal Wireless RF Remote Control Switch DC 6V 12V 24V 1CH Channel Relay Wireless Secure RF Remote Control Switches Transmitter and Receiver kit, Momentary Toggle Latched Delay Mode
  • 💡Wireless control LED lamp string, Christmas tree light string, light control switch【EASY and SAFE】:The wireless remote control switch is easy to use and safety, working voltage: DC3.6V-DC24V; maximum load: 2A. Wireless control, easy to use, learn, relearn and control.
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  • 💡【4 Work Modes】:Momentary Mode, Toggle Mode, Latched Mode,Delay Mode. Tips: If you encounter any problems during use, please feel free to contact us by e-mail, we will serve you wholeheartedly, thank you very much!
SaleBestseller No. 3
Smart RF Relay Switch eMylo Wireless Remote Control Switch DC 12V One Channel Momentary Module 433Mhz Relay Receiver with Two Transmitters
  • ♥ RF Remote Control Switch: lamps or other household electric appliances are controllable using the remote control, which features long control distance, sensitivity, high anti-interference performance and stability.
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Bestseller No. 4
ELECTRONICS-SALON Panel Mount Momentary-Switch/Pulse-Signal Control Latching DPDT Relay Module,12V
  • Support on board momentary switch, single external momentary switch, double external momentary switches and pulse signal, four control modes.
  • LED indication for relay set and reset action.
  • G2RL-2 8 Amp DPDT power relay.
  • Power off relay state memory, when the power on again, relay switch will revert to its previous state.
  • The control program based on MCU PIC12F675, this is a flash microcontroller, if you are familiar PIC firmware, you can redesign the program. Panel mount version.
Bestseller No. 5
eMylo DC 12V Wireless Remote Control Momentary Light Switch 16CH 433Mhz RF Relay Receiver with Transmitter
  • The product adopts RF Relay technology, with long remote control distance and stable signal.
  • The receiving remote relay module provides high signal sensitivity at lower cost and resist interference for excellent stability.
  • It adopts non-directional wireless encoding technology, allowing independent control without mutual interference.
  • The programmable wireless relay transmitter and receivers can be flexibly configured in quantity and in operating modes.
  • It is widely used in industrial control and security fields, such as light, motor, remote controller, wireless security alarm, wireless door alarm, wireless controller, etc.
Bestseller No. 6
eMylo DC 12V 1 Channel 433Mhz RF Wireless Relay Remote Control Momentary Light Switch Self-lock Transmitter with Receiver for Home Use
  • The remote relay adopts RF technology, with long remote control distance and stable signal.
  • The receiving module provides high signal sensitivity at lower cost and resist interference for excellent stability.
  • The rf relay adopts non-directional wireless encoding technology, allowing independent control without mutual interference.
  • The programmable rf transmitter and receivers can be flexibly configured in quantity and in operating modes.
  • It is widely used in industrial control and security fields, such as light, motor, remote controller, wireless security alarm, wireless door alarm, wireless controller, etc.
Bestseller No. 7
12V 10A One Channel Relay RF Wireless Remote Control 2 Receivers Momentary Switch
  • Material: durable PCB board and plastic.
  • Encoding Wireless Transmitter Remote Control Switch
  • Easy to install and use. The wireless signal can pass through walls, floors and doors
  • Turn on or turn off the receiver with transmitter (remote control) from any place within a reliable distance
  • Suitable for lights, electrically operated doors, windows, curtains, etc.
Bestseller No. 8
4 Channel WiFi Momentary Inching Relay Self-Lock Switch Module,DIY WiFi Garage Door Controller (5-32V)
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  • Three working modes: Inching Self-locking Interlock. can be used for DIY Garage Door Opener and other Home Appliance.You can set working mode by channel, and rename each channel,DIY smart shutter switch,press the mode change button on the board to set interlock mode,then set inching time in ewelink app
  • Timing and Status Real-time Monitor. Smart Scene: Trigger on/off by temperature, humidity or other environmental conditions,It supports 8 group timing function and Share Control with Family
SaleBestseller No. 9
WiFi Momentary Inching Relay Self-Locking Switch Module DC 7-32V WiFi Relay Switch Smart Life/Tuya APP Remote Control WiFi Relay Module for Garage Door Opener, Compatible with Alexa Echo Goolge Home
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Bestseller No. 10
ELECTRONICS-SALON Panel Mount Momentary-Switch/Pulse-Signal Control Latching SPDT Relay Module,12V
  • This item has been assembled, and electrical test passed.
  • Support on board momentary switch, single external momentary switch, double external momentary switches and pulse signal, four control modes.
  • LED indication for relay set and reset action. 10 Amp SPDT power relay.
  • Power off relay state memory, when the power on again, relay switch will revert to its previous state.
  • The control program based on MCU PIC12F675, this is a flash microcontroller, if you are familiar PIC firmware, you can redesign the program. Panel mount version, size: 72.5 x 47.4 x 18mm (L x W x H)