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. 106-6237
FabrikantnummerH3DT-N1
FabrikantOmron
55,75 €
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. 791-2723
FabrikantnummerRE17RCMU
37,15 €
Each
Aantal stuks
24 240 V ac, 24 V dc 0.1 s 100 h OFF Delay DIN Rail Single 2 RE17 Hours, Minutes, Seconds - SPDT 8 A Screw 24 V ac 24 V dc, 240 V ac
RS-stocknr. 746-5110
Fabrikantnummer3RP1505-1AW30
FabrikantSiemens
181,80 €
Each
Aantal stuks
24 240 V ac/dc 1.5 30 s - DIN Rail Multi Function 1 - Seconds External SPDT 1 (dc) A, 3 (ac) A Screw 24 V ac/dc 250 V dc, 400 V ac
RS-stocknr. 791-2745
FabrikantnummerRE17RMMU
52,60 €
Each
Aantal stuks
24 240 V ac, 24 V dc 0.1 s 100 h - DIN Rail Multi Function 2 RE17 Hours, Minutes, Seconds - SPDT 8 A Screw - 24 V dc, 240 V ac
RS-stocknr. 392-7223
Fabrikantnummer3RP1505-1BP30
FabrikantSiemens
184,50 €
Each
Aantal stuks
24 V ac, 24 V dc, 200 → 240 V ac 0.5 → 10 s - - Multi Function - - Seconds External DPDT - Screw - -
RS-stocknr. 841-1537
FabrikantnummerH3DK-M1A-DC12
FabrikantOmron
54,35 €
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. 666-7949
Fabrikantnummer38.21.0.024.9024
FabrikantFinder
44,15 €
Each
Aantal stuks
24 V ac/dc 0.1 s → 6 h ON Delay, ON Pulse DIN Rail Multi Function - 38 Series Hours, Seconds External - 10 A Screw 250 V ac 400 V ac
RS-stocknr. 160-290
FabrikantnummerE1ZM10 24-240V AC/DC
FabrikantTele
41,87 €
Each
Aantal stuks
24 → 240 V ac/dc 50 ms → 100 h Flash Pause First, OFF Delay, ON Delay, ON Delay with Control Contact, One Shot Leading Edge Voltage Controlled, One Shot Leading Edge with Control Contact, One Shot Trailing Edge with Control Contact DIN Rail Multi Function 1 E1ZM10 Hours, Milliseconds, Minutes, Seconds External SPDT 8 A - - 250 V ac
RS-stocknr. 225-8267
FabrikantnummerETR4-11-A
FabrikantEaton
82,42 €
Each
Aantal stuks
24 → 240 V ac/dc 0.05 s → 60 h ON Delay DIN Rail Single 1 ETR4 Hours, Seconds External SPDT 3 A Screw 24 V ac/dc 240 V dc, 400 V ac
RS-stocknr. 470-787
Fabrikantnummer2866161
FabrikantPhoenix Contact
67,94 €
Each
Aantal stuks
24 240 V ac/dc 50 ms 100 h Flash Start with Pause, Flash Start with Pulse, One Shot Leading Edge, One Shot Leading Edge with Control Contact, One Shot Trailing Edge with Control Contact, Release Delay with Control Contact, Switch ON Delay, Switch ON Delay with Control Contact, Voltage Controlled DIN Rail Multi Function 2 ETD-SL-1T-DTF Hours, Milliseconds External - 5 A Screw - 250 V
RS-stocknr. 733-4928
FabrikantnummerH3DK-F AC/DC24-240
FabrikantOmron
83,05 €
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. 467-6875
Fabrikantnummer88886116
FabrikantCrouzet
87,61 €
Each
Aantal stuks
12 240 V dc, 24 240 V ac 0.02 300 h, 0.02 300 min, 0.02 300 s A1, A2, D, Di, H1, H2, Q1, Q2 Plug In Multi Function 2 - Hours, Minutes, Seconds External DPDT 5 A 8-Pin Connector 12 V dc, 24 V ac 240 V ac/dc
RS-stocknr. 113-8128
FabrikantnummerH3CR-A AC24-48/DC12-48
FabrikantOmron
75,25 €
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
213,50 €
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
39,11 €
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. 733-4956
FabrikantnummerH3DK-M1 AC/DC24-240
FabrikantOmron
54,35 €
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. 746-7047
Fabrikantnummer1SVR740020R3100
FabrikantABB
115,00 €
Each
Aantal stuks
24 240 V ac, 24 48 V dc 0.05 s 300 h Accumulative ON Delay, Flash Start with OFF, Flash Start with ON, Impulse OFF with Auxiliary Voltage, Impulse ON, OFF Delay with Auxiliary Voltage, ON Delay, Pulse Former, Symmetrical OFF Delay, Symmetrical ON Delay DIN Rail Multi Function 1 - Hours, Seconds External SPDT 4 A Push In 12 V 300 V ac
RS-stocknr. 828-5177
FabrikantnummerLRTM/2 12-230V AC/DC
FabrikantBroyce Control
68,61 €
Each
Aantal stuks
12 → 230 V ac/dc 0.1 s → 100 h Delayed Pulse Function, Recycling On/Off DIN Rail Dual Function 2 - Hours, Minutes, Seconds External DPDT 8 A Screw 12 V ac/dc 265 V ac/dc
RS-stocknr. 872-5811
FabrikantnummerRE22R2MMW
67,15 €
Each
Aantal stuks
12 240 V ac/dc 0.1 s 100 h Multi Function DIN Rail Multi Function 4 RE22 R2 Hours, Minutes, Seconds External DPDT 8 A Screw - 250 V
RS-stocknr. 225-8295
FabrikantnummerETR4-51-A
FabrikantEaton
90,12 €
Each
Aantal stuks
24 → 240 V ac/dc 3 → 60 s Star Delta Switching DIN Rail Single 2 ETR4 Seconds External SPNO 3 A Screw 24 V ac/dc 240 V dc, 400 V ac
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