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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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. 782-1592
Mfr. Part No.7012PH
SGD915.41
Each
units
- 3 → 30min - Panel Mount - - - - - - 15A Screw - 125V dc
RS Stock No. 782-1551
Mfr. Part No.7012AA
SGD592.54
Each
units
- 0.1 → 1s - Panel Mount - - - - - - 15A Screw - 120V ac
RS Stock No. 782-1564
Mfr. Part No.7012AE
SGD631.07
Each
units
- 20 → 200s - Panel Mount - - - - - - 15A Screw - 120V ac
RS Stock No. 782-1526
Mfr. Part No.7022OB
SGD682.24
Each
units
- 0.5 → 5s - Panel Mount - - - - - - 15A Screw - 30 V dc, 600V ac
RS Stock No. 782-1488
Mfr. Part No.7022AF
SGD695.79
Each
units
- 1 → 10min - Panel Mount - - - - - - 15A Screw - 30 V dc, 600V ac
RS Stock No. 782-1520
Mfr. Part No.7022OD
SGD686.46
Each
units
- 5 → 50s - Panel Mount - - - - - - 15A Screw - 30 V dc, 600V ac
RS Stock No. 782-1463
Mfr. Part No.7024AD
SGD990.37
Each
units
- 5 → 50s - Panel Mount - - - - - - 15A Screw - 30 V dc, 600V ac
RS Stock No. 782-1504
Mfr. Part No.7022PC
SGD639.89
Each
units
- 1.5 → 15s - Panel Mount - - - - - - 15A Screw - 30 V dc, 600V ac
RS Stock No. 782-1602
Mfr. Part No.7012PD
SGD611.24
Each
units
- 5 → 50s - Panel Mount - - - - - - 15A Screw - 125V dc
RS Stock No. 782-1548
Mfr. Part No.7014PD
SGD1,082.54
Each
units
- 10 → 100s - Panel Mount - - - - - - 15A Screw - 125V dc
RS Stock No. 782-1560
Mfr. Part No.7012AK
SGD538.84
Each
units
- 1 → 300s - Panel Mount - - - - - - 15A Screw - 120V ac
RS Stock No. 782-1539
Mfr. Part No.7022CC
SGD623.85
Each
units
- 1.5 → 15s - Panel Mount - - - - - - 15A Screw - 30 V dc, 600V ac
RS Stock No. 782-1595
Mfr. Part No.7012PK
SGD716.12
Each
units
- 1 → 300s - Panel Mount - - - - - - 15A Screw - 125V dc
RS Stock No. 782-1491
Mfr. Part No.7022AI
SGD828.53
Each
units
- 6 → 60min - Panel Mount - - - - - - 15A Screw - 30 V dc, 600V ac
RS Stock No. 782-1510
Mfr. Part No.7022BC
SGD616.24
Each
units
- 1.5 → 15s - Panel Mount - - - - - - 15A Screw - 30 V dc, 600V ac
RS Stock No. 782-1523
Mfr. Part No.7022BD
SGD852.15
Each
units
- 5 → 50s - Panel Mount - - - - - - 15A Screw - 30 V dc, 600V ac
RS Stock No. 782-1817
Mfr. Part No.CB-1002B-70
SGD313.47
Each
units
- 0.1 → 5s - Plug In Multi Function 8 - - - - 10A - - 30 V dc, 277V ac
RS Stock No. 782-1573
Mfr. Part No.7012AH
SGD750.25
Each
units
- 3 → 30min - Panel Mount - - - - - - 15A Screw - 120V ac
RS Stock No. 782-1854
Mfr. Part No.CUA-41-70001
SGD296.09
Each
units
- 1s - - - - - - - - 10A Quick Connect - 30V dc, 277 V ac
RS Stock No. 782-1494
Mfr. Part No.7022AH
SGD768.96
Each
units
- 3 → 30min - Panel Mount - - - - - - 15A Screw - 30 V dc, 600V ac