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 828-5173
製造零件編號LEDK 12-230V AC/DC
TWD1,663.00
單位
12 → 230V ac/dc 0.1 s → 100h - DIN Rail Single 2 - Hours, Minutes, Seconds External - 8A Screw 12V ac/dc 265V ac/dc
全新
RS庫存編號 220-2675
製造零件編號700-HV32BEU120
TWD7,513.00
單位
120V ac - - - - - - - - - - - - -
RS庫存編號 733-4934
製造零件編號H3DKHBLACDC2448
BrandOmron
TWD4,113.00
單位
24 → 48V ac/dc 1 → 12 s, 10 → 120s - DIN Rail Single - H3DK Seconds - - 5A - - 30 V dc, 250V ac
全新
RS庫存編號 220-2676
製造零件編號700-HV32DDU12
TWD7,513.00
單位
- - Repeat Cycle - - - - - - - - - - -
全新
RS庫存編號 217-6247
製造零件編號TT33MH
BrandTempatron
TWD4,235.00
單位
100 → 240V ac - - Panel Mount Multi Function 2 - - - - - - - -
RS庫存編號 134-5389
製造零件編號XB5DTB25
TWD2,026.00
單位
24V dc 3 → 60min - Panel Mount Single - Harmony XB5 - External - 10A Screw - 24V dc
RS庫存編號 228-706
製造零件編號LC4HSVR424SJ
BrandPanasonic
TWD5,815.00
單位
24V ac - - Panel Mount - - - - - - - - - -
RS庫存編號 733-4937
製造零件編號H3DKHBSACDC2448
BrandOmron
TWD4,113.00
單位
24 → 48V ac/dc 0.1 → 1.2 s, 1 → 12s - DIN Rail Single - H3DK Seconds - - 5A - - 30 V dc, 250V ac
RS庫存編號 144-5926
製造零件編號DRTU24A06
TWD2,384.00
單位
180 → 240V ac/dc 0.1 s → 100h - DIN Rail Multi Function 2 SeriesOneDR Hours, Minutes, Seconds External SPNO 6A Screw 180V ac/dc 240V ac/dc
RS庫存編號 179-2898
BrandRS PRO
TWD5,118.00
單位
100 → 240V ac 99.99s - Plug In Single 1 - - External SPDT 5A - 100V ac 240V ac
RS庫存編號 857-7132
製造零件編號DCB51CM24
TWD4,905.00
單位
24 V dc, 24 → 240V ac 0.1 s → 100h - DIN Rail Multi Function 2 - Hours, Minutes, Seconds External SPDT 5A Screw - -
RS庫存編號 859-3131
製造零件編號PMB01CM24
TWD3,766.00
單位
24 → 240 V ac, 24V dc 0.1 s → 100h - Plug In Multi Function 2 - Hours, Minutes, Seconds External SPDT 8A Plug In - -
全新
RS庫存編號 217-6248
製造零件編號TT33ML
BrandTempatron
TWD4,235.00
單位
24V ac - - Panel Mount Multi Function 2 - - - - - - - -
RS庫存編號 134-5390
製造零件編號XB5DTGM2
TWD2,476.00
單位
110 → 230V ac/dc 0.5 → 10s - Panel Mount Single - Harmony XB5 - External - 10A Screw 110V ac/dc 230V ac/dc
RS庫存編號 144-5927
製造零件編號DRTL24D06
TWD2,387.00
單位
12 → 24V ac/dc 0.1 s → 100h - DIN Rail Single 2 SeriesOneDR Hours, Minutes, Seconds External SPNO 6A Screw 12V ac/dc 24V ac/dc
RS庫存編號 178-5022
BrandRS PRO
TWD2,464.00
單位
12 → 240V ac/dc - - Plug In 2 - - Days, Hours, Minutes, Seconds External DPDT 8A 11-Pin Connector 12V ac/dc -
全新
RS庫存編號 220-2587
製造零件編號700-HNC44AA23
TWD1,970.00
單位
200 → 230V ac - - - Multi Function 4 - - - - - - - -
RS庫存編號 179-2899
BrandRS PRO
TWD4,705.00
單位
100 → 240V ac 999.9s - Plug In Single 1 - - External SPDT 5A - 100V ac 240V ac
全新
RS庫存編號 220-2677
製造零件編號700-HV32DDU120
TWD7,556.00
單位
120V ac - Repeat Cycle - - - - - - - - - - -
RS庫存編號 459-4341
製造零件編號CT3-E30 / S
BrandReleco
TWD2,920.00
單位
9.5 → 18V dc 0.2 → 30 min, 0.2 → 30s - Plug In Single - - Minutes, Seconds External - - 11-Pin Connector 9.5V dc 18V dc