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. 746-7021
Mfr. Part No.1SVR730180R3300
BrandABB
kr 906,27
Each
Units
24 → 240 V ac, 24 → 48 V dc 0.05 s → 300 h OFF Delay DIN Rail Single 2 - Hours, Seconds External DPDT 4 A Screw 12 V 300 V ac
RS Stock No. 746-7081
Mfr. Part No.1SVR730180R3300
BrandABB
kr 924,22
Each
Units
24 → 240 V ac, 24 → 48 V dc 0.05 s → 300 h OFF Delay DIN Rail Single 2 - Hours, Seconds External DPDT 4 A Push In 12 V 300 V ac
RS Stock No. 746-6999
Mfr. Part No.1SVR730030R3300
BrandABB
kr 1 154,83
Each
Units
- - - - - - - - - - - - - -
RS Stock No. 456-0332
Mfr. Part No.1SBN020010R1003
BrandABB
kr 906,27
Each
Units
220 → 240 V ac 0.8 → 8 s, 6 → 60 s ON Delay DIN Rail Single - - Seconds External - 5 A Screw 24 V ac 240 V ac
RS Stock No. 746-7006
Mfr. Part No.1SVR730100R0300
BrandABB
kr 906,27
Each
Units
24 → 240 V ac/dc - - DIN Rail - - - - - - - - - -
RS Stock No. 489-7151
Mfr. Part No.1SVR500020R0000
BrandABB
kr 596,70
Each
Units
24 → 240 V ac, 24 → 48 V dc 0.05 s → 100 h Flash Start with OFF, Flash Start with ON, Impulse OFF with Auxiliary Voltage, Impulse ON, OFF Delay with Auxiliary Voltage, ON Delay, Pulse Former DIN Rail Multi Function 1 - Hours, Seconds External SPDT 6 A Screw 12 V 250 V
RS Stock No. 185-104
Mfr. Part No.1SVR500160R0100 - CT-TGD.22
BrandABB
kr 699,89
Each
Units
24 → 240 V ac, 24 → 48 V dc 0.05 s → 100 h Pulse Generator DIN Rail Single 2 - Hours, Seconds External DPDT 6 A - 12 V 250 V
RS Stock No. 783-4005
Mfr. Part No.1SVR730180R3100
BrandABB
kr 632,39
Each
Units
- 0.05 s → 300 h OFF Delay DIN Rail Single 1 - Hours, Seconds - SPDT 50 mA Screw 24 V ac/dc 48 V dc, 240 V ac
RS Stock No. 442-9118
Mfr. Part No.1SVR550107R1100
BrandABB
kr 448,65
Each
Units
24 V ac/dc, 200 → 240 V ac 0.1 → 10 s ON Delay DIN Rail Single 1 - Seconds External SPDT 4 A - - 250 V
RS Stock No. 185-110
Mfr. Part No.1SVR500210R0100 - CT-SAD.22
BrandABB
kr 596,70
Each
Units
24 → 240 V ac, 24 → 48 V dc 0.05 s → 10 min Star Delta DIN Rail Single 2 - Minutes, Seconds External DPNO 6 A - 12 V 250 V
RS Stock No. 746-7090
Mfr. Part No.1SVR730180R3100
BrandABB
kr 834,49
Each
Units
24 → 240 V ac, 24 → 48 V dc 0.05 s → 300 h OFF Delay DIN Rail Single 1 - Hours, Seconds External SPDT 4 A Push In 12 V 300 V ac
RS Stock No. 185-025
Mfr. Part No.1SVR500211R0100 - CT-SDD.22
BrandABB
kr 551,84
Each
Units
24 → 240 V ac, 24 → 48 V dc 0.05 s → 10 min Star Delta DIN Rail Single 2 - Minutes, Seconds External DPNO 6 A - 12 V 250 V
RS Stock No. 746-7107
Mfr. Part No.CT-MFD.21
BrandABB
kr 753,73
Each
Units
12 → 24 V ac/dc 0.05 s → 100 h Flash Start with OFF, Flash Start with ON, Impulse OFF with Auxiliary Voltage, Impulse ON, OFF Delay with Auxiliary Voltage, ON Delay, Pulse Former DIN Rail Multi Function 2 - Hours, Seconds External DPDT 5 A Screw 12 V 250 V ac
RS Stock No. 746-7097
Mfr. Part No.1SVR740211R2300
BrandABB
kr 906,27
Each
Units
380 → 440 V ac 0.05 s → 10 min Star Delta Changeover DIN Rail Single 2 - Minutes, Seconds External DPNO 4 A Push In 12 V 300 V ac
RS Stock No. 746-7025
Mfr. Part No.1SVR730180R3100
BrandABB
kr 812,06
Each
Units
24 → 240 V ac, 24 → 48 V dc 0.05 s → 300 h OFF Delay DIN Rail Single 1 - Hours, Seconds External SPDT 4 A Screw 12 V 300 V ac
RS Stock No. 489-7173
Mfr. Part No.1SVR500110R0000
BrandABB
kr 551,84
Each
Units
24 → 240 V ac, 24 → 48 V dc 0.05 s → 100 h OFF Delay DIN Rail Single 1 - Hours, Seconds External SPDT 6 A Screw 12 V 250 V
RS Stock No. 442-9045
Mfr. Part No.1SVR550107R4100
BrandABB
kr 448,65
Each
Units
24 V ac/dc, 200 → 240 V ac 0.3 → 30 s ON Delay DIN Rail Single 1 - Seconds External SPDT 4 A - - 250 V
RS Stock No. 746-6977
Mfr. Part No.1SVR730010R0200
BrandABB
kr 1 154,83
Each
Units
- - - - - - - - - - - - - -
RS Stock No. 746-7028
Mfr. Part No.1SVR730180R0300
BrandABB
kr 1 031,90
Each
Units
24 → 240 V ac/dc 0.05 s → 300 h OFF Delay DIN Rail Single 2 - Hours, Seconds External DPDT 4 A Screw 12 V 300 V ac
RS Stock No. 489-7189
Mfr. Part No.1SVR500130R0000
BrandABB
kr 502,49
Each
Units
24 → 240 V ac, 24 → 48 V dc 0.05 s → 100 h Impulse ON DIN Rail Single 1 - Hours, Seconds External SPDT 6 A Screw 12 V 250 V