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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Omschrijving Prijs 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-stocknr. 914-5070
FabrikantnummerRENF22R2MMW
76,50 €
Each
Aantal stuks
12 → 240V ac/dc 0.1 s → 100h - DIN Rail Multi Function 2 Zelio Hours, Minutes, Seconds External DPDT 8A Screw 12V ac/dc 240V ac/dc
RS-stocknr. 791-2720
FabrikantnummerRE17RBMU
33,44 €
Each
Aantal stuks
24 V dc, 24 → 240V ac 0.1 s → 100h - DIN Rail Single 2 RE17 Hours, Minutes, Seconds - SPDT 8A Screw 24V ac 24 V dc, 240V ac
RS-stocknr. 791-2711
FabrikantnummerRE17RAMU
36,23 €
Each
Aantal stuks
24 V dc, 24 → 240V ac 0.1 s → 100h - DIN Rail Multi Function 2 RE17 Hours, Minutes, Seconds - SPDT 8A Screw 24V ac 24 V dc, 240V ac
RS-stocknr. 791-2749
FabrikantnummerRE17RMMW
49,28 €
Each
Aantal stuks
12 → 240V ac/dc 0.1 s → 100h - DIN Rail Multi Function 2 RE17 Hours, Minutes, Seconds - SPDT 8A Screw 12V ac/dc 240V ac/dc
RS-stocknr. 896-8695
FabrikantnummerRE22R1KMR
63,27 €
Each
Aantal stuks
24 → 240V ac/dc 0.3 → 300s - DIN Rail Single 1 RE22 R1 Seconds External SPDT 5A Screw 24V ac/dc 240V ac/dc
RS-stocknr. 791-2723
FabrikantnummerRE17RCMU
33,44 €
Each
Aantal stuks
24 V dc, 24 → 240V ac 0.1 s → 100h - DIN Rail Single 2 RE17 Hours, Minutes, Seconds - SPDT 8A Screw 24V ac 24 V dc, 240V ac
RS-stocknr. 791-2745
FabrikantnummerRE17RMMU
47,34 €
Each
Aantal stuks
24 V dc, 24 → 240V ac 0.1 s → 100h - DIN Rail Multi Function 2 RE17 Hours, Minutes, Seconds - SPDT 8A Screw - 24 V dc, 240V ac
RS-stocknr. 872-5811
FabrikantnummerRE22R2MMW
60,44 €
Each
Aantal stuks
12 → 240V ac/dc 0.1 s → 100h - DIN Rail Multi Function 4 RE22 R2 Hours, Minutes, Seconds External DPDT 8A Screw - 250V
RS-stocknr. 791-2708
FabrikantnummerRE17LAMW
41,85 €
Each
Aantal stuks
24 → 240V ac/dc 0.1 s → 100h - DIN Rail Single - RE17 Hours, Minutes, Seconds - - 20A Screw 24V ac/dc 240V ac/dc
RS-stocknr. 896-8673
FabrikantnummerRE22R1AMR
49,68 €
Each
Aantal stuks
24 → 240V ac/dc 0.05 → 1 s, 0.3 → 3 s, 1 → 10 s, 3 → 30 h, 3 → 30 min, 3 → 30 s, 10 → 100 s, 30 → 300 h, 30 → 300 min, 30 → 300s - DIN Rail Single 1 RE22 R1 Hours, Minutes, Seconds External SPDT 8A Screw 24V ac/dc 240V ac/dc
RS-stocknr. 791-2727
FabrikantnummerRE17RHMU
36,23 €
Each
Aantal stuks
24 V dc, 24 → 240V ac 0.1 s → 100h - DIN Rail Multi Function 1 RE17 Hours, Minutes, Seconds - SPDT 8A Screw 24V ac 24 V dc, 240V ac
RS-stocknr. 896-8676
FabrikantnummerRE22R2AMR
63,27 €
Each
Aantal stuks
24 → 240V ac/dc 0.05 → 1 s, 0.3 → 3 s, 1 → 10 s, 3 → 30 h, 3 → 30 min, 3 → 30 s, 10 → 100 s, 30 → 300 h, 30 → 300 min, 30 → 300s - DIN Rail Single 2 RE22 R2 Hours, Minutes, Seconds External DPDT 8A Screw 24V ac/dc 240V ac/dc
RS-stocknr. 872-5805
FabrikantnummerRE22R2AMU
48,60 €
Each
Aantal stuks
24 → 240 V ac, 24V dc 0.1 s → 100h - DIN Rail Multi Function 4 RE22 R2 Hours, Minutes, Seconds External DPDT 8A Screw - -
RS-stocknr. 734-9034
FabrikantnummerA9E16067
148,16 €
Each
Aantal stuks
24 → 240 V ac, 24V dc 0.1 → 360000s - DIN Rail - 2 Acti9 Seconds - SPDT 8A - 5V dc 250V ac/dc
RS-stocknr. 791-2714
FabrikantnummerRE17LLBM
40,91 €
Each
Aantal stuks
24 → 240V ac 0.1 s → 100h - DIN Rail Multi Function - RE17 Hours, Minutes, Seconds - - 0.7A Screw 24V ac 240V ac
RS-stocknr. 872-5817
FabrikantnummerRE22R2MMU
57,74 €
Each
Aantal stuks
24 → 240V ac 0.1 s → 100h - DIN Rail Multi Function 4 RE22 R2 Hours, Minutes, Seconds External DPDT 8A Screw - -
RS-stocknr. 896-8692
FabrikantnummerRE22R1CMR
49,68 €
Each
Aantal stuks
24 → 240V ac/dc 0.05 → 1 s, 0.3 → 3 s, 1 → 10 s, 3 → 30 h, 3 → 30 min, 3 → 30 s, 10 → 100 s, 30 → 300 h, 30 → 300 min, 30 → 300s - DIN Rail Single 1 RE22 R1 Hours, Minutes, Seconds External SPDT 8A Screw 24V ac/dc 240V ac/dc
RS-stocknr. 791-2736
FabrikantnummerRE17RLJU
40,96 €
Each
Aantal stuks
12V ac/dc 0.1 s → 100h - DIN Rail Multi Function 2 RE17 Hours, Minutes, Seconds - SPDT 8A Screw - 12V ac/dc
RS-stocknr. 791-2758
FabrikantnummerRE17RMXMU
45,54 €
Each
Aantal stuks
24 V dc, 24 → 240V ac 1 s → 100h - DIN Rail Multi Function 2 RE17 Hours, Minutes, Seconds - SPDT 8A Screw 24V ac 24 V dc, 240V ac
RS-stocknr. 872-5820
FabrikantnummerRE22R2MXMU
55,89 €
Each
Aantal stuks
24 → 240V ac 0.1 s → 100h - DIN Rail Multi Function 4 RE22 R2 Hours, Minutes, Seconds External DPDT 8A Screw - -