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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Viewing 1 - 14 of 14 products
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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. 857-7094
Mfr. Part No.DAA51CM24
TWD2,559.00
Each
units
24 240 V ac, 24 V dc 0.1 s 100 h ON Delay DIN Rail Single 2 - Hours, Minutes, Seconds External SPDT 5 A Screw - -
RS Stock No. 857-7539
Mfr. Part No.DMB51CW24
TWD2,997.00
Each
units
12 240 V ac/dc 0.1 s 100 h Delay On, Delay On Release, Double Interval, Interval, Interval On Trigger Open, Symmetrical Recycler Off, Symmetrical Recycler On DIN Rail Multi Function 2 - Hours, Minutes, Seconds External SPDT 5 A Screw - -
RS Stock No. 859-3064
Mfr. Part No.DBB01CM24
TWD3,801.00
Each
units
24 → 240 V ac/dc 0.1 → 600 s Delay On Release DIN Rail Single 2 - Seconds External SPDT 8 A Screw - -
RS Stock No. 857-7139
Mfr. Part No.DMB51CM24
TWD2,955.00
Each
units
24 240 V ac, 24 V dc 0.1 s 100 h Delay On, Delay On Release, Double Interval, Interval, Interval On Trigger Open, Symmetrical Recycler Off, Symmetrical Recycler On DIN Rail Multi Function 2 - Hours, Minutes, Seconds External SPDT 5 A Screw - -
RS Stock No. 857-7393
Mfr. Part No.PMC01D115
TWD6,490.00
Each
units
115 V ac 0.1 s → 100 h Delay On Automatic and Manual Start, Delay On Manual Start, Interval Automatic and Manual Start, Interval Manual Start, Interval with No Time Reset Automatic and Manual Start, Interval with No Time Reset Manual Start Plug In Multi Function 2 - Hours, Minutes, Seconds External SPDT 8 A Plug In - -
RS Stock No. 859-3119
Mfr. Part No.FAA08DW24
TWD3,092.00
Each
units
12 → 240 V ac/dc 0.05 s → 300 h Delay On Operate, Interval, One Shot, Symmetrical Recycler On First Plug In Multi Function 4 - Hours, Minutes, Seconds External DPDT 8 A Plug In - -
RS Stock No. 859-3068
Mfr. Part No.DCB01CM24
TWD6,409.00
Each
units
24 V dc, 24 → 240 V ac 0.1 s → 100 h Asymmetrical Recycler with Pulse Start DIN Rail Multi Function 2 - Hours, Minutes, Seconds External SPDT 8 A Screw - -
RS Stock No. 857-3219
Mfr. Part No.FMB01DW24
TWD4,348.00
Each
units
12 → 240 V ac/dc 0.05 s → 300 h Delay On Operate, Delay On Release, Double Interval, Interval, Interval on Trigger Open, Symmetrical Recycler Off First, Symmetrical Recycler On First Plug In Multi Function 4 - Hours, Minutes, Seconds External DPDT 8 A Plug In - -
RS Stock No. 859-3134
Mfr. Part No.PAA01DM24
TWD3,853.00
Each
units
24 → 240 V ac/dc 0.1 s → 100 h ON Delay Plug In Single 2 - Hours, Minutes, Seconds External SPDT 8 A Plug In - -
RS Stock No. 857-7191
Mfr. Part No.DMB01CM24
TWD4,196.00
Each
units
24 V dc, 24 → 240 V ac 0.1 s → 100 h Delay On, Delay On Release, Double Interval, Interval, Interval On Trigger Open, Symmetrical Recycler Off, Symmetrical Recycler On DIN Rail Multi Function 2 - Hours, Minutes, Seconds External SPDT 8 A Screw - -
RS Stock No. 859-3131
Mfr. Part No.PMB01CM24
TWD4,196.00
Each
units
24 V dc, 24 → 240 V ac 0.1 s → 100 h Delay On, Delay On Release, Double Interval, Interval, Interval On Trigger Open, Symmetrical Recycler Off, Symmetrical Recycler On Plug In Multi Function 2 - Hours, Minutes, Seconds External SPDT 8 A Plug In - -
RS Stock No. 857-7132
Mfr. Part No.DCB51CM24
TWD5,417.00
Each
units
24 240 V ac, 24 V dc 0.1 s 100 h Asymmetrical Recycler with Pulse Start DIN Rail Multi Function 2 - Hours, Minutes, Seconds External SPDT 5 A Screw - -
RS Stock No. 859-3049
Mfr. Part No.PMB01DM24
TWD3,945.00
Each
units
24 240 V ac/dc 0.1 s 100 h Delay On, Delay On Release, Double Interval, Interval, Interval On Trigger Open, Symmetrical Recycler Off, Symmetrical Recycler On Plug In Multi Function 4 - Hours, Minutes, Seconds External DPDT 8 A Plug In - -
RS Stock No. 859-3402
Mfr. Part No.PCB01DM24
TWD7,020.00
Each
units
24 → 240 V ac/dc 0.1 s → 100 h Asymmetrical Recycler with Pulse Start Plug In Multi Function 2 - Hours, Minutes, Seconds External SPDT 8 A Plug In - -