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 171-8301
製造零件編號7PV1518-1AJ30
BrandSiemens
TWD1,960.00
單位
90 → 127V ac/dc 0.05 → 360000s - DIN Rail Multi Function 1 - Seconds External 1CO 3A Screw 90V ac/dc 127V ac/dc
RS庫存編號 459-4363
製造零件編號CT3-E30 / H
BrandReleco
TWD2,910.00
單位
90 → 265V ac/dc 0.2 → 30 min, 0.2 → 30s - Plug In Single - - Minutes, Seconds External - - 11-Pin Connector 90V ac/dc 265V ac/dc
RS庫存編號 236-1199
製造零件編號H3RN11DC24
BrandOmron
TWD1,843.00
單位
24V dc - - Chassis Mount Multi Function 1 H3RN Minutes, Seconds External - 3A Socket - 250V ac
RS庫存編號 832-5556
製造零件編號GT5Y-4SN6A200
BrandIdec
TWD1,365.00
單位
- - - - - - - - - - - - - -
RS庫存編號 328-358
製造零件編號H3CR-A8 AC100-240/DC100-125
BrandOmron
TWD2,649.00
單位
100 → 125 V dc, 100 → 240V ac 0.05 s → 300h - - Multi Function 2 H3CR Hours, Seconds External - 5A - - 125 V dc, 250V ac
RS庫存編號 349-1320
製造零件編號H3YN-41 AC100-120
BrandOmron
TWD2,954.00
單位
100 → 120V ac 0.1 min → 10h - - Multi Function 4 H3YN Hours, Minutes External - 3A Socket - 250V 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
RS庫存編號 106-6259
製造零件編號H3YN-4-B AC100-120
BrandOmron
TWD2,316.00
單位
100 → 120V ac 0.1 s → 10min - Panel Mount Multi Function 8 H3YN Minutes, Seconds External - 3A Push In - 250V ac
RS庫存編號 221-080
製造零件編號80.61.0.240.0000
BrandFinder
TWD4,085.00
單位
24 → 240V ac/dc 0.05 → 180s - DIN Rail Single 1 80 Series Seconds External SPDT 16A Screw 16.8V ac/dc 242 V dc, 265V ac
RS庫存編號 182-9964
製造零件編號OL1R10MV1
BrandCrouzet
TWD3,542.00
單位
12 → 240V ac/dc 0.05 → 1 days, 0.05 → 1 h, 0.05 → 1 min, 0.5 → 10 days, 0.5 → 10 h, 0.5 → 10 s, 0.5 → 10min - Plug In Multi Function 1 OL1R - - SPDT 10A Plug In 12V ac/dc 240V ac/dc
全新
RS庫存編號 212-8987
製造零件編號3RA2811-2CW10
BrandSiemens
TWD2,577.00
單位
240V ac 0.05 → 100s - - Single 6 - - - - - Cage Clamp - -
RS庫存編號 134-5388
製造零件編號XB5DTB24
TWD2,026.00
單位
24V dc 0.5 → 10min - Panel Mount Single - Harmony XB5 - External - 10A Screw - 24V dc
RS庫存編號 347-882
製造零件編號2BDE30MLP24VDC
BrandTempatron
TWD2,696.00
單位
24V dc 1.5 → 30min - Plug In Single 2 - Minutes External DP-NO/NC 10A - - -
RS庫存編號 340-639
製造零件編號H3Y-4 AC200-230 3M
BrandOmron
TWD1,877.00
單位
200 → 230V ac 0.1 → 3min - DIN Rail, Surface Mount Single 4 H3Y-4 Minutes External - 5A - - 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 - - - - - - - - - - -
RS庫存編號 144-5925
製造零件編號DRTA24A06R
TWD2,190.00
單位
180 → 240V ac/dc 0.1 s → 100h - DIN Rail Single 2 SeriesOneDR Hours, Minutes, Seconds External SPNO 6A Screw 180V ac/dc 240V 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 -
RS庫存編號 832-5486
製造零件編號GT3F-2EAF20
BrandIdec
TWD2,453.00
單位
- - - - - - - - - - - - - -
RS庫存編號 832-5515
製造零件編號GT5Y-2SN1D12
BrandIdec
TWD1,325.00
單位
- - - - - - - - - - - - - -
RS庫存編號 178-5029
BrandRS PRO
TWD2,266.00
單位
12 → 240V ac/dc - - DIN Rail Multi Function 4 - Days, Hours, Minutes, Seconds External 4PDT 8A Screw 12V ac/dc -