Timer Relays

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

...
Read more Read less

Filters

Viewing 81 - 100 of 1057 products
Results per page
Description Price 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
RS Stock No. 179-2938
BrandRS PRO
£24.08
Each
Units
110 V ac 0.2 → 5 s On-Delay Plug-In Mount 1 2 - - - DPDT 5 A - - 110 V ac
RS Stock No. 179-2900
BrandRS PRO
£81.14
Each
Units
100 → 240 V ac 99 min 59 s Power On Delay Plug-In Mount 1 1 - - External SPDT 5 A - 100 V ac 240 V ac
RS Stock No. 178-5029
BrandRS PRO
£42.37
Each
Units
- - - - - - - - - - - - - -
RS Stock No. 161-7612
BrandRS PRO
£40.13
Each
Units
10.5 → 265 V ac/dc 0.6 s → 60 min Off Pulse, ON Pulse with Control Switch, ON Pulse without Control Switch, On-Off Pulse Plug In Multi Function 1 - Minutes, Seconds External - 8 A 11-Pin Connector 10.5 V ac/dc 265 V ac/dc
RS Stock No. 179-2986
BrandRS PRO
£25.66
Each
Units
24 V dc 1 → 30 min On-Delay Plug-In Mount 1 4 - - - 4PDT 3 A - - 24 V dc
RS Stock No. 179-2961
BrandRS PRO
£25.66
Each
Units
230 V ac 2 → 60 s On-Delay Plug-In Mount 1 4 - - - 4PDT 3 A - - 230 V ac
RS Stock No. 179-2978
BrandRS PRO
£25.66
Each
Units
24 V dc 0.2 → 5 s On-Delay Plug-In Mount 1 4 - - - 4PDT 3 A - - 24 V dc
RS Stock No. 179-2964
BrandRS PRO
£26.84
Each
Units
230 V ac 0.5 → 10 min On-Delay Plug-In Mount 1 4 - - - 4PDT 3 A - - 230 V ac
RS Stock No. 179-2940
BrandRS PRO
£24.08
Each
Units
110 V ac 1 → 30 s On-Delay Plug-In Mount 1 2 - - - DPDT 5 A - - 110 V ac
RS Stock No. 179-2903
BrandRS PRO
£104.63
Each
Units
12 → 48 V dc 99.99 s Power On Delay Plug-In Mount 1 1 - - External SPDT 5 A - 12 V dc 48 V dc
RS Stock No. 179-2911
BrandRS PRO
£81.14
Each
Units
12 → 48 V dc 99.99 s Power On Delay Plug-In Mount 1 1 - - External SPDT 5 A - 12 V dc 48 V dc
RS Stock No. 161-7605
BrandRS PRO
£41.55
Each
Units
10.5 → 265 V ac/dc 0.6 s → 60 min Off Pulse, ON Pulse with Control Switch, ON Pulse without Control Switch, On-Off Pulse DIN Rail Multi Function 1 - Minutes, Seconds External - 8 A Screw 10.5 V ac/dc 265 V ac/dc
RS Stock No. 179-2948
BrandRS PRO
£24.08
Each
Units
24 V dc 0.2 → 5 s On-Delay Plug-In Mount 1 2 - - - DPDT 5 A - - 24 V dc
RS Stock No. 178-5022
BrandRS PRO
£46.05
Each
Units
- - - - - - - - - - - - - -
RS Stock No. 179-2933
BrandRS PRO
£22.89
Each
Units
230 V ac 0.1 → 3 min On-Delay Plug-In Mount 1 2 - - - DPDT 5 A - - 230 V ac
RS Stock No. 179-2923
BrandRS PRO
£34.74
Each
Units
220 V ac 0.1 s → 300 h On-Delay Panel Mount, Plug-In Mount 1 2 - - - 2 x SPDT 5 A - - 220 V ac
RS Stock No. 179-2982
BrandRS PRO
£25.66
Each
Units
24 V dc 2 → 60 s On-Delay Plug-In Mount 1 4 - - - 4PDT 3 A - - 24 V dc
RS Stock No. 179-2973
BrandRS PRO
£26.84
Each
Units
110 V ac 0.2 → 5 min On-Delay Plug-In Mount 1 4 - - - 4PDT 3 A - - 110 V ac
RS Stock No. 179-2929
BrandRS PRO
£22.89
Each
Units
230 V ac 0.5 → 10 s On-Delay Plug-In Mount 1 2 - - - DPDT 5 A - - 230 V ac
RS Stock No. 179-2970
BrandRS PRO
£26.84
Each
Units
110 V ac 1 → 30 s On-Delay Plug-In Mount 1 4 - - - 4PDT 3 A - - 110 V ac
Related Products
Multifunction timer LMMT in a 17.5mm DIN rail ...
Description:
Multifunction timer LMMT in a 17.5mm DIN rail housing. 7 selectable functions7 selectable time rangesFine adjustment of selected time rangeLED warning indication if function is changed whilst poweredSwitch initiated functions ideal for use in Watchdog circuitsMulti-voltage input1x SPDT relay output 8A (stock-no. 102-6122)1x DPDT relay output 8A (stock-no. 102-6123)Green LED ...
Asymmetrical Recycling, Multi-voltage timer LART in a 17.5mm ...
Description:
Asymmetrical Recycling, Multi-voltage timer LART in a 17.5mm DIN rail housing. Recycling ON/OFF functionSeparate adjustments for ON and OFF ranges7 selectable time rangesFine adjustment of selected time rangeMicroprocessor basedMulti-voltage input1x SPDT relay output Green LED indication for supply and timing statusRed LED indication for relay status17.5 mm widthDIN rail mounting. ...
SIRIUS 3RP25 series time relays are used in ...
Description:
SIRIUS 3RP25 series time relays are used in control, starting, and protective circuits for all switching operations involving time delays.Their fully developed concept and space-saving, compact design make the time relays ideal modules for control cabinet, switchgear and control manufacturers in the industry. Star delta time relayLED indicatorScrew-type or spring-loaded ...
Standard time relay with 1 function, 1 time ...
Description:
Standard time relay with 1 function, 1 time rangeIn the most common time and supply voltage versionsAll time settings via absolute scalesFunction display in internal symbols on front sideMax. 2 supply voltages via terminal selection in one unitTerminal technology, max. 2x1.5mm2 with cable end sleeveExtremely cost-effective standard time relayFine time ...