Timer Relays

"

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
"

...
Read more Read less

Filters

Viewing 1 - 20 of 1065 products
Results per page
Description Price Supply Voltage Mounting Type Time Range Mode of Operation Number of Contacts Number of Timer Functions Series Contact Configuration Time Increment Power Supply Maximum Voltage Current Maximum Terminal Type Minimum Voltage
RS Stock No. 914-5070
Mfr. Part No.RENF22R2MMW
HK$1,005.09
Each
units
12 → 240V ac/dc DIN Rail 0.1 s → 100h - 2 Multi Function Zelio DPDT Hours, Minutes, Seconds External 240V ac/dc 8A Screw 12V ac/dc
RS Stock No. 808-6623
BrandRS PRO
HK$697.73
Each
units
24V ac/dc Panel Mount - One Shot 1 Single - SPDT Hours, Minutes, Seconds External 24V ac/dc - - -
RS Stock No. 774-0304
Mfr. Part No.88827105
BrandCrouzet
HK$744.11
Each
units
24 → 240 V ac, 24V dc DIN Rail 0.1 s → 100h Asymmetrical, Interval, OFF Delay, ON Delay, ON Pulse, Symmetrical 1 Multi Function - SPDT Hours, Minutes, Seconds External - 8A Screw -
RS Stock No. 456-0348
Mfr. Part No.1SBN020010R1004 TE5S-440
BrandABB
HK$1,079.46
Each
units
380 → 440V ac DIN Rail 0.8 → 60s Star Delta - Single - - Seconds External 230V ac 4A Screw -
RS Stock No. 328-364
Mfr. Part No.H3CR-A8 AC24-48/DC12-48
BrandOmron
HK$1,075.07
Each
units
12 → 48 V dc, 24 → 48V ac - 0.05 s → 300h Flicker ON Start, Interval, ON Delay, One Shot 2 Multi Function H3CR - Hours, Seconds External 125 V dc, 250V ac 5A - -
RS Stock No. 328-358
Mfr. Part No.H3CR-A8 AC100-240/DC100-125
BrandOmron
HK$1,508.64
Each
units
100 → 125 V dc, 100 → 240V ac - 0.05 s → 300h Flicker ON Start, Interval, ON Delay, One Shot 2 Multi Function H3CR - Hours, Seconds External 125 V dc, 250V ac 5A - -
RS Stock No. 536-2779
BrandRS PRO
HK$378.57
Each
units
250V ac Panel Mount 0 → 120min - - - - - - External - - - -
RS Stock No. 897-6738
Mfr. Part No.RE22R1QCMU
HK$881.08
Each
units
24 → 240V ac/dc DIN Rail 0.05 → 300s Star Delta 1 Single RE22 R1 SPDT Seconds External 240V ac/dc 8A Screw 24V ac/dc
RS Stock No. 897-6700
Mfr. Part No.RE22R2ACMR
HK$890.11
Each
units
24 → 240V ac/dc DIN Rail 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 OFF Delay, ON Delay 2 Multi Function RE22 R2 DPDT Hours, Minutes, Seconds External 240V ac/dc 8A Screw 24V ac/dc
RS Stock No. 188-4578
Mfr. Part No.H3CR-F8 AC/DC24
BrandOmron
HK$1,083.28
Each
units
24V ac/dc - 0.05 s → 30h Flicker OFF 2 Single H3CR - Hours, Seconds External 30 V dc, 250V ac 5A - -
RS Stock No. 687-6109
Mfr. Part No.H5CX-L8-N
BrandOmron
HK$1,807.04
Each
units
100 → 240V ac Panel Mount 0.001 s → 9999h Flicker OFF Start 1, Flicker OFF Start 2, Flicker ON Start 1, Flicker ON Start 2 1 Multi Function H5CX - Hours, Seconds External - - - -
RS Stock No. 349-1279
Mfr. Part No.H3CR-H8L AC100-120 M
BrandOmron
HK$1,238.04
Each
units
100 → 120V ac - 0.05 → 12min OFF Delay 2 Single H3CR - Minutes, Seconds External 30 V dc, 250V ac 5A - -
RS Stock No. 828-5155
Mfr. Part No.LEDO 12-230V AC/DC
HK$330.24
Each
units
12 → 230V ac/dc DIN Rail 0.1 s → 100h ON Delay 1 Single - SPDT Hours, Minutes, Seconds External 265V ac/dc 8A Screw 12V ac/dc
RS Stock No. 791-2723
Mfr. Part No.RE17RCMU
HK$509.71
Each
units
24 V dc, 24 → 240V ac DIN Rail 0.1 s → 100h OFF Delay 2 Single RE17 SPDT Hours, Minutes, Seconds - 24 V dc, 240V ac 8A Screw 24V ac
RS Stock No. 106-6255
Mfr. Part No.H3YN-21-B AC200-230
BrandOmron
HK$418.01
Each
units
200 → 230V ac Panel Mount 0.1 min → 10h Delay ON, Flicker OFF Start, Flicker ON Start 4 Multi Function H3YN DPDT Hours, Minutes External 250V ac 5A Push In -
RS Stock No. 188-4584
Mfr. Part No.H3CR-F8 AC100-240
BrandOmron
HK$1,082.97
Each
units
100 → 240V ac - 0.05 s → 30h Flicker OFF 2 Single H3CR - Hours, Seconds External 30 V dc, 250V ac 5A - -
RS Stock No. 733-4953
Mfr. Part No.H3DK-S1 AC/DC24-240
BrandOmron
HK$828.14
Each
units
24 → 240V ac/dc DIN Rail 0.1 s → 1200h Flicker ON Start, Interval, ON Delay, One Shot Output - Multi Function H3DK SPDT Hours, Minutes, Seconds - 30 V dc, 250V ac 5A Screw 24V
RS Stock No. 759-6643
Mfr. Part No.83.02.0.240.0000
BrandFinder
HK$1,104.77
Each
units
24 → 240V ac/dc DIN Rail - ON Delay 2 Multi Function 83 Series SPDT Days, Hours, Minutes, Seconds External - 12A - 16.8V ac/dc
RS Stock No. 828-5158
Mfr. Part No.LMMT 12-230V AC/DC
HK$456.25
Each
units
24 to 230 V ac/12 to 230V dc DIN Rail 0.1 s → 100h - 1 Multi Function - SPDT Hours, Minutes, Seconds External 265V ac/dc 8A Screw 24 Vac / 12V dc
RS Stock No. 825-4577
Mfr. Part No.H3CR-F AC100-240/DC100-125
BrandOmron
HK$928.91
Each
units
100 → 125 V dc, 100 → 240V ac - 0.05 s → 30h Flicker OFF Start 2 Single H3CR DPDT Hours, Minutes, Seconds External 125 V dc, 240V ac 5A PCB Pin 100 V ac, 100V dc