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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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庫存編號 221-086
製造零件編號80.11.0.240.0000
BrandFinder
TWD2,519.00
單位
24 → 240V ac/dc 0.1 → 20 min, 0.1 → 20 s, 0.1 → 24h ON Delay DIN Rail Single 1 80 Series Hours, Minutes, Seconds External SPDT 16A Screw 16.8V ac/dc 265V ac/dc
RS庫存編號 828-5158
製造零件編號LMMT 12-230V AC/DC
TWD1,601.00
單位
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庫存編號 733-4953
製造零件編號H3DK-S1 AC/DC24-240
BrandOmron
TWD3,126.00
單位
24 → 240V ac/dc 0.1 s → 1200h Flicker ON Start, Interval, ON Delay, One Shot Output DIN Rail Multi Function - H3DK Hours, Minutes, Seconds - SPDT 5A Screw 24V 30 V dc, 250V ac
RS庫存編號 684-3689
製造零件編號2917463
TWD2,808.00
單位
19.2 → 30V dc 3 → 300s OFF Delay with Control Contact DIN Rail Single 1 ETD-BL-1T-OFF-CC-300S Seconds External - 6.3A Screw - -
RS庫存編號 687-6092
製造零件編號H5CX-A-N
BrandOmron
TWD7,589.00
單位
100 → 240V ac 0.001 s → 9999h - Panel Mount Multi Function 1 H5CX Hours, Seconds External - - Screw - -
RS庫存編號 828-5155
製造零件編號LEDO 12-230V AC/DC
TWD1,330.00
單位
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庫存編號 914-4597
製造零件編號LEDO/2 12-230V AC/DC
TWD1,212.00
單位
12 → 230V ac/dc 0.1 s → 100h ON Delay DIN Rail - 2 - Hours, Minutes, Seconds External DPDT 8A Screw 12V ac/dc 230V ac/dc
RS庫存編號 828-5151
製造零件編號LMMT/2 12-230V AC/DC
TWD1,646.00
單位
24 to 230 V ac/12 to 230V dc 0.1 s → 100h - DIN Rail Multi Function 2 - Hours, Minutes, Seconds External DPDT 8A Screw 24 Vac / 12V dc 265V ac/dc
RS庫存編號 827-3436
製造零件編號RUW101MW
TWD2,166.00
單位
- - Multi Function Plug In Multi Function - - - - - - - 24V ac/dc 240V ac/dc
RS庫存編號 308-0784
製造零件編號XMW-D1
TWD2,009.00
單位
10.5 → 265V ac/dc 0 → 60 min, 0 → 60s Asymmetrical Recycler with Pause Start, Asymmetrical Recycler with Pulse Start DIN Rail Multi Function 1 XMW-D1 Seconds External SPDT 8A Screw 10.5 V ac/dc, 24V dc 265V ac/dc
RS庫存編號 456-0310
製造零件編號1SBN020010R1001 TE5S-24
BrandABB
TWD2,876.00
單位
24V ac/dc 0.8 → 8 s, 6 → 60s ON Delay DIN Rail Single - - Seconds External - 5A Screw 24V ac 240V ac
RS庫存編號 828-5164
製造零件編號LART 12-230V AC/DC
TWD1,243.00
單位
24 to 230 V ac/12 to 230V dc 0.1 s → 100h - DIN Rail Dual Function 1 - Hours, Minutes, Seconds External SPDT 8A Screw 24 Vac / 12V dc 265V ac/dc
RS庫存編號 818-4575
製造零件編號2A8DT6
BrandGIC
TWD1,914.00
單位
24 → 240V ac/dc - - DIN Rail Multi Function 2 - Hours, Minutes, Seconds External SPDT 5A Screw 24V ac/dc 240V ac/dc
RS庫存編號 392-7223
製造零件編號3RP1505-1BP30
BrandSiemens
TWD7,504.00
單位
24 V ac, 24V dc, 200 → 240 V ac 0.5 → 10s - - Multi Function - - Seconds External DPDT - Screw - -
RS庫存編號 857-7094
製造零件編號DAA51CM24
TWD2,409.00
單位
24 → 240 V ac, 24V dc 0.1 s → 100h ON Delay DIN Rail Single 2 - Hours, Minutes, Seconds External SPDT 5A Screw - -
RS庫存編號 733-4956
製造零件編號H3DK-M1 AC/DC24-240
BrandOmron
TWD3,066.00
單位
24 → 240V ac/dc 0.1 s → 1200h 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 5A Screw 24V 30 V dc, 250V ac
RS庫存編號 349-1279
製造零件編號H3CR-H8L AC100-120 M
BrandOmron
TWD3,561.00
單位
100 → 120V ac 0.05 → 12min OFF Delay - Single 2 H3CR Minutes, Seconds External - 5A - - 30 V dc, 250V ac
RS庫存編號 834-7473
製造零件編號3RP1512-1AP30
BrandSiemens
TWD2,134.00
單位
200 → 240V 1.5 → 30s - DIN Rail Single 1 - Seconds External SPDT 1A Screw - -
RS庫存編號 349-1291
製造零件編號H3YN-21 AC100-120
BrandOmron
TWD1,587.00
單位
100 → 120V ac 0.1 min → 10h Flicker OFF Start, Flicker ON Start, Interval, ON Delay - Multi Function 2 H3YN Hours, Minutes External - 5A Socket - 250V ac
RS庫存編號 828-5170
製造零件編號LEYD/A 12-230V AC/DC
TWD1,510.00
單位
12 → 230V ac/dc 0.1 s → 100h Star/Delta DIN Rail Single 1 - Hours, Minutes, Seconds External SPDT 6A Screw 12V ac/dc 265V ac/dc