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 - 20 of 1073 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. 160-262
Mfr. Part No.E1ZMQ10 24-240V AC/DC
BrandTele
€41.85
Each
units
24 → 240V ac/dc 50 ms → 100h Flash Pause First, OFF Delay, ON Delay, One Shot Leading Edge Voltage Controlled DIN Rail Multi Function 1 E1ZMQ10 Hours, Milliseconds, Minutes, Seconds External SPDT 8A - - 250V ac
RS Stock No. 160-284
Mfr. Part No.E1ZM10 12-240V AC/DC
BrandTele
€74.49
Each
units
12 → 240V ac/dc 50 ms → 100h Flash Pause First, OFF Delay, ON Delay, One Shot Leading Edge Voltage Controlled DIN Rail Multi Function 1 E1ZM10 Hours, Milliseconds, Minutes, Seconds External SPDT 8A - - 250V ac
RS Stock No. 828-5158
Mfr. Part No.LMMT 12-230V AC/DC
€33.31
Each
units
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 Stock No. 160-290
Mfr. Part No.E1ZM10 24-240V AC/DC
BrandTele
€63.88
Each
units
24 → 240V ac/dc 50 ms → 100h Flash Pause First, OFF Delay, ON Delay, One Shot Leading Edge Voltage Controlled DIN Rail Multi Function 1 E1ZM10 Hours, Milliseconds, Minutes, Seconds External SPDT 8A - - 250V ac
RS Stock No. 905-3460
Mfr. Part No.TMM2
BrandLovato
€79.24
Each
units
12 → 240V ac/dc - Flash Start with OFF, Flash Start with ON, OFF Delay, ON Delay, Pulse ON Relay DIN Rail Multi Function 3 - - External - 8A Screw - -
RS Stock No. 791-2711
Mfr. Part No.RE17RAMU
€26.44
Each
units
24 V dc, 24 → 240V ac 0.1 s → 100h ON Delay DIN Rail Multi Function 2 RE17 Hours, Minutes, Seconds - SPDT 8A Screw 24V ac 24 V dc, 240V ac
RS Stock No. 828-5155
Mfr. Part No.LEDO 12-230V AC/DC
€31.46
Each
units
12 → 230V ac/dc 0.1 s → 100h ON Delay DIN Rail Single 1 - Hours, Minutes, Seconds External SPDT 8A Screw 12V ac/dc 265V ac/dc
RS Stock No. 328-358
Mfr. Part No.H3CR-A8 AC100-240/DC100-125
BrandOmron
€63.80
Each
units
100 → 125 V dc, 100 → 240V ac 0.05 s → 300h Flicker ON Start, Interval, ON Delay, One Shot - Multi Function 2 H3CR Hours, Seconds External - 5A - - 125 V dc, 250V ac
RS Stock No. 774-0317
Mfr. Part No.88827125
BrandCrouzet
€60.15
Each
units
24 → 240 V ac, 24V dc 0.1 s → 100h ON Pulse Timer DIN Rail Single 1 - Hours, Minutes, Seconds External SPDT 8A Screw - -
RS Stock No. 774-0308
Mfr. Part No.88827115
BrandCrouzet
€47.40
Each
units
24 → 240 V ac, 24V dc 0.1 s → 100h ON Delay DIN Rail Single 1 - Hours, Minutes, Seconds External SPDT 8A Screw - -
RS Stock No. 687-6092
Mfr. Part No.H5CX-A-N
BrandOmron
€180.34
Each
units
100 → 240V ac 0.001 s → 9999h - Panel Mount Multi Function 1 H5CX Hours, Seconds External - - Screw - -
RS Stock No. 896-6822
BrandRS PRO
€28.87
Each
units
24 V ac/dc, 240V ac 0.3 s → 30h OFF Delay DIN Rail Single 1 - Seconds External SPDT 5A Screw - 24 V ac/dc, 240V ac
RS Stock No. 828-5161
Mfr. Part No.LESW 12-230V AC/DC
€33.31
Each
units
12 → 230V ac/dc 0.1 s → 100h OFF Delay DIN Rail Single 1 - Hours, Minutes, Seconds External SPDT 8A Screw 12V ac/dc 265V ac/dc
RS Stock No. 328-386
Mfr. Part No.H3CR-A8E AC/DC24-48
BrandOmron
€73.09
Each
units
24 → 48V ac/dc 0.05 s → 300h Flicker ON Start, Interval, ON Delay, One Shot - Multi Function 2 H3CR Hours, Seconds External - 5A - - 125 V dc, 250V ac
RS Stock No. 714-0026
Mfr. Part No.V0DDTS
BrandGIC
€46.32
Each
units
24 → 240V ac/dc 0.1 s → 999h - DIN Rail Multi Function 1 - Hours, Seconds - SPDT 8A Screw 125V ac/dc 240 V ac, 250V dc
RS Stock No. 774-0314
Mfr. Part No.88827145
BrandCrouzet
€49.49
Each
units
24 → 240 V ac, 24V dc 0.1 s → 100h Interval DIN Rail Single 1 - Hours, Minutes, Seconds External SPDT 8A Screw - -
RS Stock No. 774-0310
Mfr. Part No.88827135
BrandCrouzet
€60.90
Each
units
24 → 240 V ac, 24V dc 0.1 s → 100h OFF Delay DIN Rail Single 1 - Hours, Minutes, Seconds External SPDT 8A Screw - -
RS Stock No. 467-6869
Mfr. Part No.88886016
BrandCrouzet
€76.53
Each
units
12 → 240 V dc, 24 → 240V ac 0.02 → 300 h, 0.02 → 300 min, 0.02 → 300s A, AC, B, BW, C, G, W Plug In Multi Function 2 - Hours, Minutes, Seconds External DPDT 5A 11-Pin Connector 12 V dc, 24V ac 240V ac/dc
RS Stock No. 687-6106
Mfr. Part No.H5CX-AD-N
BrandOmron
€180.34
Each
units
12 → 24V ac/dc 0.001 s → 9999h - Panel Mount Multi Function 1 H5CX Hours, Seconds External - - Screw - -
RS Stock No. 237-8793
Mfr. Part No.TT32ML
BrandTempatron
€98.96
Each
units
12 → 24V ac/dc 0 → 99:59 h, 0.1 → 999.9 s, 1 → 99:59min - Panel Mount Multi Function 2 - Hours, Minutes, Seconds External - - - - 30V dc