Timer Relays are a type of Control Relay with a time delay built in.
Timer Relay or Electromechanical Relay?
The difference between the timer relay and electromechanical relay is that when the output contacts open or close. On a conventional Control Relay, the contacts are opened or closed when a voltage is applied and removed from the coil - for timer relays, however, the contacts will open or close before or after an intentional time period. When choosing the right Timer Relay it is important to consider the right kind of delay required for your application.
What are the types of Timer Relays that I can choose from?
The most common timing function of Time Delay Relay are:
On Delay (Time delay starts on the application of voltage)
Off Delay (When a voltage is applied the relay is ready to accept a trigger)
Single Shot (One-shot)
Interval On (Interval) and Flasher (On First / Off First)
Repeat Cycle (When a voltage is applied the relay contacts change state and the timer starts)
When designing your application it is important to understand the difference between the particular types of the timer relays. That means to consider what should initiate the delay and whether the timing should start at the same time as the application as well as when the voltage is released.
Timer Relays are triggered/initiated by either:
Voltage being applied or
The closing or opening of a trigger signal
Trigger signals are either:
Control Switch ( Dry Contact) such as a limit switch, float switch or push button or
Voltage ( Power Trigger)
Where can I use Timer Relay?
Time Delay Relays are typically used in industrial applications and OEM equipment play an important role for many industrial processes such as small panel or sub-panels requirements.
Interval, Interval with Control Signal ON, OFF Delay with Control Signal, ON & OFF Delay with Control Signal, ON Delay, Symmetrical Flash (Starting Pulse ON)
Description:
Solid-sate time delay relays with push-in plus technology
are used for in-panel applications. They are ideal in space saving applications due to their slim design and help reduce work in control panels. The timers reduce power consumption by up to ...
Description:
Multifunction timing relays SIRIUS 3RP15 are used in
control, starting, and protective circuits for all switching operations involving time delays. They guarantee a high level of functionality and a high repeat accuracy of timer settings. MultifunctionLED for indicating timing relay ...
Description:
Flexible functionality with wide range applicationsTamper proof with
key lock functionSelectable up/down counting modes - to show elapsed/remaining time3 Digit LCD for preset time and run timeClear LED indication of relay status.
Description:
Multifunction timing relays SIRIUS 3RP15 are used in
control, starting, and protective circuits for all switching operations involving time delays. They guarantee a high level of functionality and a high repeat accuracy of timer settings. MultifunctionLED for indicating timing relay ...
