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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รายละเอียดสินค้า / Description ราคา / 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. 536-2555
Brand :RS PRO
THB1,571.91
Each
Units
- Panel Mount 0 → 30min - - - - - - External - - - -
RS Stock No. 896-6822
Brand :RS PRO
THB954.41
Each
Units
24 V ac/dc, 240V ac DIN Rail 0.3 s → 30h OFF Delay 1 Single - SPDT Seconds External 24 V ac/dc, 240V ac 5A Screw -
RS Stock No. 896-6813
Brand :RS PRO
THB1,343.88
Each
Units
12 → 240V ac/dc DIN Rail 0.1 s → 100h Multi Function 1 Multi Function - SPDT Hours, Minutes, Seconds External 240V ac/dc 6A Screw 12V ac/dc
RS Stock No. 896-6810
Brand :RS PRO
THB906.13
Each
Units
24 V ac/dc, 240V ac DIN Rail 0.3 s → 30h ON Delay 1 Single - SPDT Seconds External 24 V ac/dc, 240V ac 5A Screw -
RS Stock No. 896-6816
Brand :RS PRO
THB906.13
Each
Units
24 V ac/dc, 110V ac DIN Rail 0.3 s → 30h ON Delay 1 Single - SPDT Seconds External 24 V ac/dc, 110V ac 5A Screw -
RS Stock No. 896-6841
Brand :RS PRO
THB2,176.93
Each
Units
24 → 240V ac/dc DIN Rail - Multi Function 1 Multi Function - SPDT Seconds External 240V ac/dc 5A Screw 24V ac/dc
RS Stock No. 808-6620
Brand :RS PRO
THB3,118.03
Each
Units
230V ac Panel Mount - One Shot 1 Single - SPDT Minutes, Seconds External 230V ac - - -
RS Stock No. 102-6122
Brand :RS PRO
THB1,546.52
Each
Units
12 → 230V ac/dc DIN Rail - - - Multi Function - SPDT - - - - Screw -
RS Stock No. 102-6127
Brand :RS PRO
THB1,182.58
Each
Units
12 → 230V ac/dc DIN Rail - - - - - SPDT - - - - Screw -
RS Stock No. 808-6623
Brand :RS PRO
THB3,328.33
Each
Units
24V ac/dc Panel Mount - One Shot 1 Single - SPDT Hours, Minutes, Seconds External 24V ac/dc - - -
RS Stock No. 896-6835
Brand :RS PRO
THB1,567.39
Each
Units
115V ac DIN Rail 3 → 120s Star Delta 2 Single - SPNO Seconds External 24 V ac/dc, 240V ac 5A Screw -
RS Stock No. 179-2971
Brand :RS PRO
THB1,530.13
Each
Units
110V ac Plug In 2 → 60s ON-Delay 4 Single - 4PDT - - 110V ac 3A - -
RS Stock No. 179-2943
Brand :RS PRO
THB1,372.60
Each
Units
110V ac Plug In 0.2 → 5min ON-Delay 2 Single - DPDT - - 110V ac 5A - -
RS Stock No. 179-2917
Brand :RS PRO
THB2,723.15
Each
Units
100 → 125 V dc, 100 → 240V ac - 0.1 s → 300h A: ON-Delay, B2: Flicker ON Start, E: Interval, J: One-Shot 2 - - DPDT - - 125 V dc, 240V ac 5A - 100V ac/dc
RS Stock No. 102-6129
Brand :RS PRO
THB1,164.96
Each
Units
12 → 230V ac/dc DIN Rail - - - Multi Function - SPDT - - - - Screw -
RS Stock No. 179-2972
Brand :RS PRO
THB1,320.56
Each
Units
110V ac Plug In 0.1 → 3min ON-Delay 4 Single - 4PDT - - 110V ac 3A - -
RS Stock No. 179-2977
Brand :RS PRO
THB1,444.91
Each
Units
24V dc Plug In 0.1 → 1s ON-Delay 4 Single - 4PDT - - 24V dc 3A - -
RS Stock No. 178-5023
Brand :RS PRO
THB2,836.41
Each
Units
12 → 240V ac/dc Plug In - Asymmetrical Recycler with Pulse Start - 1 - DPDT Days, Hours, Minutes, Seconds External - 8A - 12V ac/dc
RS Stock No. 179-2900
Brand :RS PRO
THB5,891.68
Each
Units
100 → 240V ac Plug In 99 min 59s ON-Delay 1 Single - SPDT - External 240V ac 5A - 100V ac
RS Stock No. 179-2937
Brand :RS PRO
THB1,184.58
Each
Units
110V ac Plug In 0.1 → 1s ON-Delay 2 Single - DPDT - - 110V ac 5A - -