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 349-888
製造零件編號2BDE200SLP240VAC
BrandTempatron
HK$583.78
單位
240 V ac 5 → 200 s ON Delay Energise Plug In Single 2 - Seconds External DP-NO/NC 10 A 8-Pin Connector - -
RS庫存編號 237-8793
製造零件編號TT32ML
BrandTempatron
HK$942.48
單位
12 → 24 V ac/dc 0 → 99:59 h, 0.1 → 999.9 s, 1 → 99:59 min Cycle, Dependent ON Delay Energise, Interval, ON Delay Deenergise, ON Delay Energise, ON Delay Energise & Interval, Pulse Delay, 24 Hour Clock Panel Mount Multi Function 2 - Hours, Minutes, Seconds External SPNC, SPNO - - - 30 V dc
RS庫存編號 347-747
製造零件編號FBDE30MLP230VAC
BrandTempatron
HK$653.22
單位
230 V ac 1.5 → 30 min ON Delay Energise Panel Mount, Plug In Single 2 - Minutes External DP-NO/NC 10 A 8-Pin Connector - 30 V dc, 240 V ac
RS庫存編號 217-1390
製造零件編號TT4802-11
BrandTempatron
HK$856.06
單位
230 V ac 3 s → 30 m True OFF Delay Deenergise Panel Mount, Plug In Single 2 - Minutes, Seconds External DP-NO/NC 5 A 11-Pin Connector - 30 V dc, 230 V ac
RS庫存編號 308-1579
製造零件編號TE48ML
BrandTempatron
HK$1,901.10
單位
12 24 V ac/dc 0.1 999.9 s, 1 9999 min, 1 99:59 h Cycle Time Monitor, Delay Cycle, Delay Pulse, Dependent ON Delay Energise, Interval, ON Delay Deenergise, ON Delay Energise, ON Delay Energise & Interval, Sequence Panel Mount Multi Function 2 - Hours, Minutes, Seconds External SPDT, SPNO - - - 26.4 V ac/dc
RS庫存編號 347-927
製造零件編號2BDE30MLP240VAC
BrandTempatron
HK$650.59
單位
240 V ac 1.5 → 30 min ON Delay Energise Plug In Single 2 - Minutes External DP-NO/NC 10 A 8-Pin Connector - -
RS庫存編號 349-765
製造零件編號MDE200SLP30VDC
BrandTempatron
HK$541.57
單位
10 30 V dc 5 200 s ON Delay PCB Mount Single - - Seconds External - - - - -
RS庫存編號 349-951
製造零件編號2BDE200SLP12VDC
BrandTempatron
HK$583.78
單位
12 V dc 5 → 200 s ON Delay Energise Plug In Single 2 - Seconds External DP-NO/NC 10 A 8-Pin Connector - -
RS庫存編號 349-872
製造零件編號2BDE20SLP240VAC
BrandTempatron
HK$572.69
單位
240 V ac 0.5 → 20 s ON Delay Energise Plug In Single 2 - Seconds External DP-NO/NC 10 A 8-Pin Connector - -
RS庫存編號 343-997
製造零件編號UDT
BrandTempatron
HK$958.03
單位
18 → 264 V ac, 18 → 300 V dc 0.01 → 99.9 h, 0.01 → 99.9 min, 0.1 → 99.9 s Delay Cycle, Delay Pulse, Immediate Cycle, Interval, ON Delay Deenergise, ON Delay Energise Plug In Multi Function 1 - Hours, Minutes, Seconds External SP-NO/NC 10 A 11-Pin Connector - 30 V dc, 240 V ac
RS庫存編號 349-771
製造零件編號MDE20SRP30VDC
BrandTempatron
HK$389.07
單位
10 30 V dc 0.5 20 s ON Delay PCB Mount Single - - Seconds External - - - - -
RS庫存編號 347-674
製造零件編號FBDE200SLP110VAC
BrandTempatron
HK$685.89
單位
110 V ac 5 → 200 s ON Delay Energise Panel Mount, Plug In Single 2 - Seconds External DP-NO/NC 10 A 8-Pin Connector - 30 V dc, 240 V ac
RS庫存編號 349-917
製造零件編號2BDC200SLP200SLP240VAC
BrandTempatron
HK$791.30
單位
240 V ac 5 → 200 s Delay Cycle Plug In Single 2 - Seconds External DP-NO/NC 10 A 8-Pin Connector - 30 V dc, 240 V ac
RS庫存編號 420-9122
製造零件編號MINT20SLP30VDC
BrandTempatron
HK$569.03
單位
10 30 V dc 0.5 20 s Encapsulated Interval Panel Mount, PCB Mount Single - - Seconds External - - - - -
RS庫存編號 349-894
製造零件編號2BDE20SLP110VAC
BrandTempatron
HK$624.40
單位
110 V ac 0.5 → 20 s ON Delay Energise Plug In Single 2 - Seconds External DP-NO/NC 10 A 8-Pin Connector - -
RS庫存編號 217-1328
製造零件編號TT4801-01
BrandTempatron
HK$653.57
單位
230 V ac 6 s → 6 h ON Delay Energise Panel Mount, Plug In Single 2 TT4801 Hours, Minutes, Seconds External DP-NO/NC 5 A 8-Pin Connector - 30 V dc, 240 V ac
RS庫存編號 349-939
製造零件編號2BDE200SLP24VDC
BrandTempatron
HK$583.78
單位
24 V dc 5 → 200 s ON Delay Energise Plug In Single 2 - Seconds External DP-NO/NC 10 A 8-Pin Connector - -
RS庫存編號 217-1407
製造零件編號TT4802-12
BrandTempatron
HK$840.38
單位
110 V ac 3 s → 30 m True ON Delay Deenergise Panel Mount, Plug In Single 2 - Minutes, Seconds External DP-NO/NC 5 A 11-Pin Connector - 30 V dc, 240 V ac
RS庫存編號 341-200
製造零件編號MT4L30M110VAC
BrandTempatron
HK$366.08
單位
110 V ac 1.5 → 30 min ON Delay Energise Plug In Single 4 - Minutes External 4P-NO/NC 3 A 14-Pin Connector - 30 V dc, 240 V ac
RS庫存編號 341-165
製造零件編號MT4L60S110VAC
BrandTempatron
HK$439.41
單位
110 V ac 3 → 60 s ON Delay Energise Plug In Single 4 - Seconds External 4P-NO/NC 3 A 14-Pin Connector - 30 V dc, 240 V ac