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 877-8105
製造零件編號2901484
TWD2,424.00
單位
- 3 → 300min - DIN Rail Single 2 ETD-BL-1T-ON-CC-300MIN-PT Minutes External SPDT - Screw 19.2V dc 30V dc
RS庫存編號 914-5070
製造零件編號RENF22R2MMW
TWD3,514.00
單位
12 → 240V ac/dc 0.1 s → 100h - DIN Rail Multi Function 2 Zelio Hours, Minutes, Seconds External DPDT 8A Screw 12V ac/dc 240V ac/dc
RS庫存編號 872-5811
製造零件編號RE22R2MMW
TWD3,311.00
單位
12 → 240V ac/dc 0.1 s → 100h - DIN Rail Multi Function 4 RE22 R2 Hours, Minutes, Seconds External DPDT 8A Screw - 250V
RS庫存編號 687-6109
製造零件編號H5CX-L8-N
BrandOmron
TWD6,361.00
單位
100 → 240V ac 0.001 s → 9999h - Panel Mount Multi Function 1 H5CX Hours, Seconds External - - - - -
RS庫存編號 185-097
製造零件編號1SVR500110R0100 - CT-AHD.22
BrandABB
TWD3,926.00
單位
24 → 240 V ac, 24 → 48V dc 0.05 s → 100h - DIN Rail Single 2 - Hours, Seconds External DPDT 6A - 12V 250V
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 828-5177
製造零件編號LRTM/2 12-230V AC/DC
TWD2,212.00
單位
12 → 230V ac/dc 0.1 s → 100h - DIN Rail Dual Function 2 - Hours, Minutes, Seconds External DPDT 8A Screw 12V ac/dc 265V ac/dc
RS庫存編號 746-6971
製造零件編號1SVR730010R3200 CT-MBS.22S
BrandABB
TWD3,573.00
單位
- - - - - - - - - - - - - -
RS庫存編號 783-4005
製造零件編號1SVR730180R3100
BrandABB
TWD3,451.00
單位
- 0.05 s → 300h - DIN Rail Single 1 - Hours, Seconds - SPDT - Screw 24V ac/dc 48 V dc, 240V ac
RS庫存編號 349-1279
製造零件編號H3CR-H8L AC100-120 M
BrandOmron
TWD3,391.00
單位
100 → 120V ac 0.05 → 12min - - Single 2 H3CR Minutes, Seconds External - 5A - - 30 V dc, 250V ac
RS庫存編號 746-7090
製造零件編號1SVR730180R3100 CT-APS.12S
BrandABB
TWD3,285.00
單位
24 → 240 V ac, 24 → 48V dc 0.05 s → 300h - DIN Rail Single 1 - Hours, Seconds External SPDT 4A Push In 12V 300V ac
RS庫存編號 746-7097
製造零件編號1SVR740211R2300 CT-SDS.23P
BrandABB
TWD3,574.00
單位
380 → 440V ac 0.05 s → 10min - DIN Rail Single 2 - Minutes, Seconds External DPNO 4A Push In 12V 300V ac
RS庫存編號 305-6012
製造零件編號81506720
BrandCrouzet
TWD5,527.00
單位
- 0.1 → 30s - Panel Mount Multi Function - - Seconds - - - Screw - -
RS庫存編號 774-0301
製造零件編號88827103
BrandCrouzet
TWD2,251.00
單位
12 → 240V ac/dc 0.1 s → 100h - DIN Rail Multi Function 1 - Hours, Minutes, Seconds External SPDT 8A Screw - -
RS庫存編號 828-5186
製造零件編號LEDF 24VAC/DC/110VAC. 0.5-10 Sec
TWD1,797.00
單位
24V ac/dc, 110 V ac 0.5 → 10s - DIN Rail Single 1 - Seconds External SPDT 8A Screw - -
RS庫存編號 798-3444
BrandRS PRO
TWD1,620.00
單位
230V ac - - - Single 1 - Hours, Minutes, Seconds External - - - - 230V ac
RS庫存編號 896-8698
製造零件編號RE22R2KMR
TWD3,884.00
單位
24 → 240V ac/dc 0.3 → 300s - DIN Rail Single 2 RE22 R2 Seconds External DPDT 5A Screw 24V ac/dc 240V ac/dc
RS庫存編號 225-8267
製造零件編號031882 & ETR4-11-A
BrandEaton
TWD3,697.00
單位
24 → 240V ac/dc 0.05 s → 60h - DIN Rail Single 1 ETR4 Hours, Seconds External SPDT 3A Screw 24V ac/dc 240 V dc, 400V ac
RS庫存編號 329-137
製造零件編號XM-S1
TWD1,806.00
單位
10.5 → 265V ac/dc 0.6 → 60min - Plug In Multi Function 1 XM-S1 Minutes External SPDT 8A 11-Pin Connector 10.5 V ac/dc, 24V dc 265V ac/dc
RS庫存編號 467-6869
製造零件編號88886016
BrandCrouzet
TWD2,560.00
單位
12 → 240 V dc, 24 → 240V ac 0.02 → 300 h, 0.02 → 300 min, 0.02 → 300s - Plug In Multi Function 2 - Hours, Minutes, Seconds External DPDT 5A 11-Pin Connector 12 V dc, 24V ac 240V ac/dc