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 199 products
Results per page
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. 733-4953
Mfr. Part No.H3DK-S1 AC/DC24-240
BrandOmron
TWD3,124.00
Each
units
24 → 240 V ac/dc 0.1 s → 1200 h Flicker ON Start, Interval, ON 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 Stock No. 687-6092
Mfr. Part No.H5CX-A-N
BrandOmron
TWD7,190.00
Each
units
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 Stock No. 733-4956
Mfr. Part No.H3DK-M1 AC/DC24-240
BrandOmron
TWD2,074.00
Each
units
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 Stock No. 687-6109
Mfr. Part No.H5CX-L8-N
BrandOmron
TWD6,350.00
Each
units
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 Stock No. 349-1279
Mfr. Part No.H3CR-H8L AC100-120 M
BrandOmron
TWD3,361.00
Each
units
100 → 120 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 Stock No. 349-1291
Mfr. Part No.H3YN-21 AC100-120
BrandOmron
TWD2,952.00
Each
units
100 → 120 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 Stock No. 106-6272
Mfr. Part No.H3RN-1-B DC24
BrandOmron
TWD1,902.00
Each
units
24 V dc 0.1 s → 10 min Delay ON, Flicker OFF Start, Flicker ON Start, Interval Panel Mount Multi Function 2 H3RN Minutes, Seconds External SPDT 3 A Plug In - 250 V ac
RS Stock No. 349-1285
Mfr. Part No.H3YN-2 AC100-120
BrandOmron
TWD1,649.00
Each
units
100 → 120 V ac 0.1 s → 10 min Flicker OFF Start, Flicker ON Start, Interval, ON Delay DIN Rail, Flush Mount Multi Function 2 H3YN Minutes, Seconds External - 5 A Socket - 250 V ac
RS Stock No. 687-6106
Mfr. Part No.H5CX-AD-N
BrandOmron
TWD7,190.00
Each
units
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 Stock No. 794-8873
Mfr. Part No.H3CA-8 AC200/220/240
BrandOmron
TWD6,953.00
Each
units
200 → 240 V ac 0.1 h → 99.9 h, 0.1 min → 99.9 min, 0.1 s → 99.9 s, 1 h → 999 h, 1 min → 999 min, 1 s → 999 s, 10 h → 9990 h - Surface Mount - 8 - Hours, Minutes, Seconds External - 3 A 8-Pin Socket 200 V ac 240 V ac
RS Stock No. 177-0083
Mfr. Part No.H3DK-GA DC12
BrandOmron
TWD3,326.00
Each
units
12 V dc 1 → 120 s Star-Delta Timer DIN Rail Multi Function 2 H3DK Seconds External SPDT 5 A Screw - 12 V dc
RS Stock No. 106-6274
Mfr. Part No.H3RN-11-B DC12
BrandOmron
TWD1,902.00
Each
units
12 V dc 0.1 min → 10 h Delay ON, Flicker OFF Start, Flicker ON Start, Interval Panel Mount Multi Function 2 H3RN Hours, Minutes External SPDT 3 A Plug In - 250 V ac
RS Stock No. 236-1329
Mfr. Part No.H3YN-21 DC12
BrandOmron
TWD2,952.00
Each
units
12 V dc 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 Stock No. 106-6234
Mfr. Part No.H3DT-L2
BrandOmron
TWD2,698.00
Each
units
24 → 240 V ac/dc 0.1 s → 100 h Delay ON, Delay ON/OFF, Flicker OFF Start, Flicker ON Start, Interval, One Shot DIN Rail Multi Function 4 H3DT - External DPDT 5 A Screw - 30 V dc, 250 V ac
RS Stock No. 177-0073
Mfr. Part No.H3DS-ALC
BrandOmron
TWD1,486.00
Each
units
24 → 230 V ac, 24 → 48 V dc 0.1 s → 120 h ON Delay DIN Rail Multi Function 2 H3DS Hours, Minutes, Seconds Internal SPDT 5 A Screw 24 V ac/dc 48 V dc, 230 V ac
RS Stock No. 106-6247
Mfr. Part No.H3DT-HDL
BrandOmron
TWD2,788.00
Each
units
200 → 240 V ac 1 → 120 s Power OFF Delay DIN Rail Single 2 H3DT Seconds External SPDT 5 A Screw - 30 V dc, 250 V ac
RS Stock No. 687-6096
Mfr. Part No.H5CX-A11-N
BrandOmron
TWD7,190.00
Each
units
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 - - 11-Pin Connector - -
RS Stock No. 328-386
Mfr. Part No.H3CR-A8E AC/DC24-48
BrandOmron
TWD3,129.00
Each
units
24 → 48 V ac/dc 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 Stock No. 177-0109
Mfr. Part No.H5F-B
BrandOmron
TWD9,046.00
Each
units
100 → 240 V ac 24 h → 7 days ON/OFF Flush Mount Dual Function 1 H5F-B - External SPST 15 A Screw 100 V ac 240 V ac
RS Stock No. 177-0084
Mfr. Part No.H3CA-A DIN
BrandOmron
TWD7,024.00
Each
units
12 → 240 V dc, 24 → 240 V ac 0.1 s → 100 h ON Delay DIN Rail Multi Function 2 H3CA Hours, Minutes, Seconds External SPDT 3 A Screw 12 V dc, 24 V ac 240 V ac/dc