Timer Relays

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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.


  • Lighting circuits

  • Motor start control

  • Sensitive equipment

  • Safety control

  • Conveyor belt sequence delay
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Nombre de résultats par page
Description Prix Supply Voltage Time Range Mode of Operation Mounting Type Number of Timer Functions Number of Contacts Series Time Increment Power Supply Contact Configuration Current Maximum Terminal Type Minimum Voltage Maximum Voltage
N° de stock RS 896-6810
MarqueRS PRO
27,48 €
Each
Unité
24 V ac/dc, 240 V ac 0.3 s → 30 h ON Delay DIN Rail Single 1 - Seconds External SPDT 5 A Screw - 24 V ac/dc, 240 V ac
N° de stock RS 536-2779
MarqueRS PRO
33,81 €
Each
Unité
250 V ac 0 → 120 min - Panel Mount - - - - External - - - - -
N° de stock RS 102-6122
MarqueRS PRO
32,39 €
Each
Unité
12 → 230 V ac/dc - - DIN Rail Multi Function - - - - SPDT - Screw - -
N° de stock RS 102-6123
MarqueRS PRO
34,68 €
Each
Unité
12 → 230 V ac/dc - - DIN Rail - - - - - DPDT - Screw - -
N° de stock RS 798-3444
MarqueRS PRO
53,96 €
Each
Unité
230 V ac - Interval Clamp Single 1 - Hours, Minutes, Seconds External NC, SPNO - - - 230 V ac
N° de stock RS 896-6832
MarqueRS PRO
39,93 €
Each
Unité
240 → 415 V ac 3 → 120 s Star Delta DIN Rail Single 2 - Seconds External CO (Delta), CO (Star) 5 A Screw 240 V ac 415 V ac
N° de stock RS 536-2555
MarqueRS PRO
33,87 €
Each
Unité
- 0 → 30 min - Panel Mount - - - - External - - - - -
N° de stock RS 102-6124
MarqueRS PRO
29,15 €
Each
Unité
12 → 230 V ac/dc - ON Delay DIN Rail Multi Function - - - - SPDT - Screw - -
N° de stock RS 896-6813
MarqueRS PRO
34,72 €
Each
Unité
12 → 240 V ac/dc 0.1 s → 100 h Multi Function DIN Rail Multi Function 1 - Hours, Minutes, Seconds External SPDT 6 A Screw 12 V ac/dc 240 V ac/dc
N° de stock RS 808-6620
MarqueRS PRO
77,59 €
Each
Unité
230 V ac - One Shot Panel Mount Single 1 - Minutes, Seconds External SPDT 50 mA - - 230 V ac
N° de stock RS 124-1078
MarqueRS PRO
87,72 €
Each
Unité
24 V ac/dc - Multi function Panel Mount Multi Function - - Seconds - - - Screw - -
N° de stock RS 102-6125
MarqueRS PRO
34,31 €
Each
Unité
12 → 230 V ac/dc - ON Delay DIN Rail - - - - - DPDT - Screw - -
N° de stock RS 896-6879
MarqueRS PRO
99,21 €
Each
Unité
110 → 240 V ac 0.1 s → 999 Days Multi Function Panel Mount Multi Function 2 - Days, Hours, Minutes, Seconds External DPDT 5 A PCB Pin 110 V ac 240 V ac
N° de stock RS 896-6822
MarqueRS PRO
29,93 €
Each
Unité
24 V ac/dc, 240 V ac 0.3 s → 30 h OFF Delay DIN Rail Single 1 - Seconds External SPDT 5 A Screw - 24 V ac/dc, 240 V ac
N° de stock RS 798-3448
MarqueRS PRO
62,40 €
Each
Unité
10 → 30 V dc - Interval Clamp Single 1 - Hours, Minutes, Seconds External NC, SPNO - - 10 V dc 30 V dc
N° de stock RS 896-6838
MarqueRS PRO
35,82 €
Each
Unité
240 V ac 3 → 120 s Star Delta DIN Rail Single 2 - Seconds External SPNO 5 A Screw - 24 V ac/dc, 240 V ac
N° de stock RS 124-1077
MarqueRS PRO
87,72 €
Each
Unité
230 V ac - Multi function Panel Mount Multi Function - - Seconds - - - Screw - -
N° de stock RS 102-6127
MarqueRS PRO
37,69 €
Each
Unité
12 → 230 V ac/dc - - DIN Rail - - - - - SPDT - Screw - -
N° de stock RS 896-6872
MarqueRS PRO
99,69 €
Each
Unité
110 → 240 V ac 01.s → 999 days Multi Function Panel Mount Multi Function 2 - Days, Hours, Minutes, Seconds External - 5 A PCB Pin 110 V ac 240 V ac
N° de stock RS 896-6844
MarqueRS PRO
66,96 €
Each
Unité
24 → 240 V ac/dc 0.6 → 600 s True Off Delay DIN Rail Single 2 - Seconds External DPDT 5 A Screw 24 V ac/dc 240 V ac/dc