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. 465-0609
FabrikantnummerIK7817N.81/200 AC/DC12-240V 0.02s-300h
FabrikantDold
120,78 €
Each
Aantal stuks
12 → 240V ac/dc 0.03 → 300 min, 0.06 → 30 s, 3 → 300h - DIN Rail Multi Function 1 IK7817N Hours, Minutes, Seconds External SPDT 4A - 12V ac/dc 240V ac/dc
RS-stocknr. 160-262
FabrikantnummerE1ZMQ10 24-240V AC/DC
FabrikantTele
37,69 €
Each
Aantal stuks
24 → 240V ac/dc 50 ms → 100h - DIN Rail Multi Function 1 E1ZMQ10 Hours, Milliseconds, Minutes, Seconds External SPDT 8A - - 250V ac
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. 774-0304
Fabrikantnummer88827105
FabrikantCrouzet
66,48 €
Each
Aantal stuks
24 → 240 V ac, 24V dc 0.1 s → 100h - DIN Rail Multi Function 1 - Hours, Minutes, Seconds External SPDT 8A Screw - -
RS-stocknr. 365-6987
FabrikantnummerH3DS-ML AC/DC
FabrikantOmron
57,30 €
Each
Aantal stuks
24 → 230 V ac, 24 → 48V dc 0.1 s → 120h - DIN Rail Multi Function 1 EF7616. Hours, Seconds External - 5A Screw - 30 V dc, 250V ac
RS-stocknr. 828-5158
FabrikantnummerLMMT 12-230V AC/DC
FabrikantBroyce Control
36,00 €
Each
Aantal stuks
24 to 230 V ac/12 to 230V dc 0.1 s → 100h - DIN Rail Multi Function 1 - Hours, Minutes, Seconds External SPDT 8A Screw 24 Vac / 12V dc 265V ac/dc
RS-stocknr. 446-0327
Fabrikantnummer80.01.0.240.0000
FabrikantFinder
51,61 €
Each
Aantal stuks
12 → 240V ac/dc 0.1 → 20 min, 0.1 → 20 s, 0.1 → 24h - DIN Rail Multi Function 1 80 Series Hours, Minutes, Seconds External SPDT 16A Screw 250V ac 400V ac
RS-stocknr. 733-4959
FabrikantnummerH3DK-M2 AC/DC24-240
FabrikantOmron
60,35 €
Each
Aantal stuks
24 → 240V ac/dc 0.1 s → 100h - DIN Rail Multi Function - H3DK Hours, Minutes, Seconds - - 5A - - 30 V dc, 250V ac
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. 160-284
FabrikantnummerE1ZM10 12-240V AC/DC
FabrikantTele
67,10 €
Each
Aantal stuks
12 → 240V ac/dc 50 ms → 100h - DIN Rail Multi Function 1 E1ZM10 Hours, Milliseconds, Minutes, Seconds External SPDT 8A - - 250V ac
RS-stocknr. 896-6810
FabrikantRS PRO
28,58 €
Each
Aantal stuks
24 V ac/dc, 240V ac 0.3 s → 30h - DIN Rail Single 1 - Seconds External SPDT 5A Screw - 24 V ac/dc, 240V ac
RS-stocknr. 113-8134
FabrikantnummerH3CR-A AC100-240/DC100-125
FabrikantOmron
76,05 €
Each
Aantal stuks
100 → 125 V dc, 100 → 240V ac 0.05 s → 300h - - Multi Function 2 H3CR Hours, Seconds External - 5A 11-Pin Connector - 125 V dc, 250V ac
RS-stocknr. 828-5161
FabrikantnummerLESW 12-230V AC/DC
FabrikantBroyce Control
35,29 €
Each
Aantal stuks
12 → 230V ac/dc 0.1 s → 100h - DIN Rail Single 1 - Hours, Minutes, Seconds External SPDT 8A Screw 12V ac/dc 265V ac/dc
RS-stocknr. 536-2779
FabrikantRS PRO
35,05 €
Each
Aantal stuks
250V ac 0 → 120min - Panel Mount - - - - External - - - - -
RS-stocknr. 328-358
FabrikantnummerH3CR-A8 AC100-240/DC100-125
FabrikantOmron
71,50 €
Each
Aantal stuks
100 → 125 V dc, 100 → 240V ac 0.05 s → 300h - - Multi Function 2 H3CR Hours, Seconds External - 5A - - 125 V dc, 250V 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. 774-0339
Fabrikantnummer88827014
FabrikantCrouzet
46,27 €
Each
Aantal stuks
24 → 240V ac/dc 0.1 s → 100h - DIN Rail Single 1 - Hours, Minutes, Seconds External - 0.7A Screw - -
RS-stocknr. 424-9912
FabrikantnummerMK7850N.82/500 AC/DC12-240V 0.02S-300H
FabrikantDold
155,56 €
Each
Aantal stuks
12 → 240V ac/dc 0.03 → 300 min, 0.06 → 30 s, 3 → 300h - DIN Rail Multi Function 2 MK7850N Hours, Minutes, Seconds External DPDT 4A - 12V ac/dc 240V ac/dc
RS-stocknr. 857-7539
FabrikantnummerDMB51CW24
FabrikantCarlo Gavazzi
83,22 €
Each
Aantal stuks
12 → 240V ac/dc 0.1 s → 100h - DIN Rail Multi Function 2 - Hours, Minutes, Seconds External SPDT 5A Screw - -