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. 365-6987
FabrikantnummerH3DS-ML AC/DC
FabrikantOmron
55,30 €
Each
Aantal stuks
24 → 230 V ac, 24 → 48 V dc 0.1 s → 120 h Flicker OFF Start, Flicker ON Start, Interval, ON Delay, One Shot, Signal OFF Delay, Signal ON/OFF Delay DIN Rail Multi Function 1 EF7616. Hours, Seconds External - 5 A Screw - 30 V dc, 250 V ac
RS-stocknr. 733-4959
FabrikantnummerH3DK-M2 AC/DC24-240
FabrikantOmron
58,85 €
Each
Aantal stuks
24 → 240 V ac/dc 0.1 s → 1200 h Flicker OFF Start, Flicker ON Start, Interval, OFF Delay, ON Delay, ON/OFF Delay, One Shot Output DIN Rail Multi Function - H3DK Hours, Minutes, Seconds - - 5 A - - 30 V dc, 250 V ac
RS-stocknr. 113-8134
FabrikantnummerH3CR-A AC100-240/DC100-125
FabrikantOmron
74,10 €
Each
Aantal stuks
100 → 125 V dc, 100 → 240 V ac 0.05 s → 300 h Flicker OFF Start, Flicker ON Start, Interval, ON Delay, One Shot, Signal OFF Delay, Signal ON/OFF Delay DIN Rail, Flush Mount, Surface Mount Multi Function 2 H3CR Hours, Seconds External - 5 A 11-Pin Connector - 125 V dc, 250 V ac
RS-stocknr. 328-358
FabrikantnummerH3CR-A8 AC100-240/DC100-125
FabrikantOmron
69,70 €
Each
Aantal stuks
100 → 125 V dc, 100 → 240 V ac 0.05 s → 300 h Flicker ON Start, Interval, ON Delay, One Shot DIN Rail, Flush Mount, Surface Mount Multi Function 2 H3CR Hours, Seconds External - 5 A 8-Pin Connector - 125 V dc, 250 V ac
RS-stocknr. 687-6092
FabrikantnummerH5CX-A-N
FabrikantOmron
244,30 €
Each
Aantal stuks
100 → 240 V ac 0.001 s → 9999 h Cumulative, Interval, ON/OFF Duty Adjustable Flicker, Power ON Delay I, Power ON Delay II Repeat Cycle I, Repeat Cycle II, Signal OFF Delay, Signal ON Delay I, Signal ON Delay II, Stopwatch Panel Mount Multi Function 1 H5CX Hours, Seconds External - - Screw - -
RS-stocknr. 841-1537
FabrikantnummerH3DK-M1A-DC12
FabrikantOmron
53,50 €
Each
Aantal stuks
12 V dc 0.1 s → 100 h Flicker OFF Start, Flicker ON Start, Interval, ON Delay, One Shot Output, Signal OFF Delay, Signal ON/OFF Delay DIN Rail Multi Function 2 H3DK Hours, Minutes, Seconds External SPDT 5 A Screw 24 V ac/dc 240 V ac/dc
RS-stocknr. 106-6237
FabrikantnummerH3DT-N1
FabrikantOmron
54,90 €
Each
Aantal stuks
24 → 240 V ac/dc 0.1 s → 100 h Delay OFF, Delay ON, Flicker OFF Start, Flicker ON Start, Interval DIN Rail Multi Function 2 H3DT - External SPDT 5 A Screw - 30 V dc, 250 V ac
RS-stocknr. 113-8128
FabrikantnummerH3CR-A AC24-48/DC12-48
FabrikantOmron
74,10 €
Each
Aantal stuks
12 → 48 V dc, 24 → 48 V ac 0.05 s → 300 h Flicker OFF Start, Flicker ON Start, Interval, ON Delay, One Shot, Signal OFF Delay, Signal ON/OFF Delay DIN Rail, Flush Mount, Surface Mount Multi Function 2 H3CR Hours, Seconds External - 5 A 11-Pin Connector - 125 V dc, 250 V ac
RS-stocknr. 687-6106
FabrikantnummerH5CX-AD-N
FabrikantOmron
210,30 €
Each
Aantal stuks
12 → 24 V ac/dc 0.001 s → 9999 h Cumulative, Interval, ON/OFF Duty Adjustable Flicker, Power ON Delay I, Power ON Delay II Repeat Cycle I, Repeat Cycle II, Signal OFF Delay, Signal ON Delay I, Signal ON Delay II, Stopwatch Panel Mount Multi Function 1 H5CX Hours, Seconds External - - Screw - -
RS-stocknr. 340-392
FabrikantnummerH3Y-4 DC24 10S
FabrikantOmron
37,59 €
Each
Aantal stuks
24 V dc 0.5 → 10 s ON Delay DIN Rail, Surface Mount Single 4 H3Y-4 Seconds External - 5 A - - 250 V ac
RS-stocknr. 733-4928
FabrikantnummerH3DK-F AC/DC24-240
FabrikantOmron
81,80 €
Each
Aantal stuks
24 → 240 V ac/dc 0.1 → 1.2 s, 1 → 12 h, 1 → 12 min, 1 → 12 s, 10 → 120 h, 10 → 120 min, 10 → 120 s, 100 → 1200 h Flicker OFF Start, Flicker ON Start DIN Rail Multi Function - H3DK Hours, Minutes, Seconds - - 5 A - - 24 V dc, 250 V ac
RS-stocknr. 733-4956
FabrikantnummerH3DK-M1 AC/DC24-240
FabrikantOmron
53,50 €
Each
Aantal stuks
24 → 240 V ac/dc 0.1 s → 1200 h Flicker OFF Start, Flicker ON Start, Interval, OFF Delay, ON Delay, ON/OFF Delay, One Shot Output DIN Rail Multi Function - H3DK Hours, Minutes, Seconds - SPDT 5 A Screw 24 V 30 V dc, 250 V ac
RS-stocknr. 188-4578
FabrikantnummerH3CR-F8 AC/DC24
FabrikantOmron
111,10 €
Each
Aantal stuks
24 V ac/dc 0.05 s → 30 h Flicker OFF DIN Rail, Flush Mount, Surface Mount Single 2 H3CR Hours, Seconds External - 5 A 8-Pin Connector - 30 V dc, 250 V ac
RS-stocknr. 328-364
FabrikantnummerH3CR-A8 AC24-48/DC12-48
FabrikantOmron
69,70 €
Each
Aantal stuks
12 → 48 V dc, 24 → 48 V ac 0.05 s → 300 h Flicker ON Start, Interval, ON Delay, One Shot DIN Rail, Flush Mount, Surface Mount Multi Function 2 H3CR Hours, Seconds External - 5 A 8-Pin Connector - 125 V dc, 250 V ac
RS-stocknr. 188-4629
FabrikantnummerH3CRH8LAC200240M
FabrikantOmron
103,00 €
Each
Aantal stuks
200 → 240 V ac 0.05 → 12 min OFF Delay DIN Rail, Flush Mount, Surface Mount Single 2 H3CR Minutes, Seconds External - 5 A 8-Pin Connector - 30 V dc, 250 V ac
RS-stocknr. 397-1220
FabrikantnummerH3DS-XL
FabrikantOmron
39,80 €
Each
Aantal stuks
24 → 230 V ac/dc 0.1 s → 120 h ON Delay DIN Rail Single 1 H3DS Hours, Seconds External - 5 mA Screw - -
RS-stocknr. 188-4584
FabrikantnummerH3CR-F8 AC100-240
FabrikantOmron
113,20 €
Each
Aantal stuks
100 → 240 V ac 0.05 s → 30 h Flicker OFF DIN Rail, Flush Mount, Surface Mount Single 2 H3CR Hours, Seconds External - 5 A 8-Pin Connector - 30 V dc, 250 V ac
RS-stocknr. 236-1357
FabrikantnummerH3YN-21 AC200-230
FabrikantOmron
52,40 €
Each
Aantal stuks
200 → 230 V ac 0.1 min → 10 h Flicker OFF Start, Flicker ON Start, Interval, ON Delay DIN Rail, Flush Mount Multi Function 2 H3YN Hours, Minutes External - 5 A Socket - 250 V ac
RS-stocknr. 687-6109
FabrikantnummerH5CX-L8-N
FabrikantOmron
210,30 €
Each
Aantal stuks
100 → 240 V ac 0.001 s → 9999 h Flicker OFF Start 1, Flicker OFF Start 2, Flicker ON Start 1, Flicker ON Start 2 Panel Mount Multi Function 1 H5CX Hours, Seconds External - - 8-Pin Connector - -
RS-stocknr. 733-4921
FabrikantnummerH3DKGACDC24240
FabrikantOmron
61,10 €
Each
Aantal stuks
24 → 240 V ac/dc 1 → 12 s, 10 → 120 s Star Delta DIN Rail Single - H3DK Seconds - - 5 A - - 24 V dc, 250 V ac