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 536-2555
BrandRS PRO
HK$245.39
單位
250 V ac 0 30 min - Panel Mount - - - - External - - - - -
RS庫存編號 160-307
製造零件編號E3ZM20 12-240V AC/DC
BrandTele
HK$617.07
單位
12 → 240 V ac/dc 50 ms → 100 h Flash Pause First, OFF Delay, ON Delay, ON Delay with Control Contact, One Shot Leading Edge Voltage Controlled, One Shot Leading Edge with Control Contact, One Shot Trailing Edge with Control Contact DIN Rail Multi Function 2 E3ZM20 Hours, Milliseconds, Minutes, Seconds External DPDT 8 A - - 250 V ac
RS庫存編號 221-086
製造零件編號80.11.0.240.0000
BrandFinder
HK$526.88
單位
24 → 240 V ac/dc 0.1 → 20 min, 0.1 → 20 s, 0.1 → 24 h ON Delay DIN Rail Single 1 80 Series Hours, Minutes, Seconds External SPDT 16 A Screw 16.8 V ac/dc 265 V ac/dc
RS庫存編號 827-3436
製造零件編號RUW101MW
HK$755.04
單位
- - Multi Function Plug In Multi Function - - - - - - - 24 V ac/dc 240 V ac/dc
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 160-262
製造零件編號E1ZMQ10 24-240V AC/DC
BrandTele
HK$298.63
單位
24 → 240 V ac/dc 50 ms → 100 h Flash Pause First, OFF Delay, ON Delay, One Shot Leading Edge Voltage Controlled DIN Rail Multi Function 1 E1ZMQ10 Hours, Milliseconds, Minutes, Seconds External SPDT 8 A - - 250 V ac
RS庫存編號 236-1408
製造零件編號H3YN-4 AC200-230
BrandOmron
HK$447.94
單位
200 → 230 V ac 0.1 s → 10 min Flicker OFF Start, Flicker ON Start, Interval, ON Delay DIN Rail, Flush Mount Multi Function 4 H3YN Minutes, Seconds External - 3 A Socket - 250 V ac
RS庫存編號 188-4629
製造零件編號H3CRH8LAC200240M
BrandOmron
HK$1,048.03
單位
200 → 240 V ac 0.05 → 12 min OFF Delay DIN Rail, Flush Mount, Surface Mount Single 2 H3CR Minutes, Seconds External - 5 A 8-Pin Connector - 30 V dc, 250 V ac
RS庫存編號 159-600
製造零件編號85.04.0.125.0000
BrandFinder
HK$379.01
單位
110 125 V ac/dc 0.05 100s, 0.5 100min Interval, On Delay, Pulse Delayed, Symmetrical Flasher Plug In Multi Function 4 85 Series Hours, Minutes, Seconds External 4PDT 7 A 14-Pin Connector 93.5 V ac/dc 137.5 V ac/dc
RS庫存編號 467-6897
製造零件編號88886106
BrandCrouzet
HK$706.53
單位
12 → 240 V dc, 24 → 240 V ac 0.02 → 300 h, 0.02 → 300 min, 0.02 → 300 s ON Delay Plug In Single 2 - Hours, Minutes, Seconds External DPDT 5 A 8-Pin Connector 12 V dc, 24 V ac 240 V ac, 240 V dc
RS庫存編號 340-409
製造零件編號H3Y-4 DC24 30S ..
BrandOmron
HK$474.99
單位
24 V dc 1 → 30 s ON Delay DIN Rail, Surface Mount Single 4 H3Y-4 Seconds External - 5 A - - 250 V ac
RS庫存編號 106-6237
製造零件編號H3DT-N1
BrandOmron
HK$532.76
單位
24 → 240 V ac/dc 0.1 s → 100 h Delay OFF, Delay ON, Flicker OFF Start, Flicker ON Start, Interval DIN Rail Multi Function 2 H3DT - External SPDT 5 A Screw - 30 V dc, 250 V ac
RS庫存編號 392-7188
製造零件編號3RP1574-1NP30
BrandSiemens
HK$932.59
單位
200 → 240 V 1 → 20 s WYE Delta - Single 2 - Seconds External SPDT - Screw - -
RS庫存編號 102-6122
BrandRS PRO
HK$318.72
單位
12 → 230 V ac/dc - - DIN Rail Multi Function - - - - SPDT - Screw - -
RS庫存編號 746-5189
製造零件編號3RP1576-1NP30
BrandSiemens
HK$932.59
單位
24 V ac/dc, 200 → 240 V ac 3 → 60 s WYE Delta DIN Rail Single 2 - Seconds External SPNO 1 (dc) A, 3 (ac) A Screw 24 V ac/dc 250 V dc, 400 V ac
RS庫存編號 746-3883
製造零件編號H3CA-8H DC110
BrandOmron
HK$494.21
單位
110 V dc 0.1 s → 9990 h ON Delay DIN Rail, Flush Mount, Surface Mount Single 1 H3CA Hours, Seconds External - 3 A 8-Pin Socket - 250 V ac
RS庫存編號 825-4637
製造零件編號H5CN-XAN AC100-240
BrandOmron
HK$2,624.00
單位
12 48 V dc, 100 240 V ac 0.001 99.99 s ON Delay Flush Mount, Surface Mount Single 1 H5CN Seconds External SPDT 3 A PCB Pin 12 V dc, 100 V ac 48 V dc, 240 V ac
RS庫存編號 341-373
製造零件編號XM-D1
HK$486.40
單位
10.5 → 265 V ac/dc 0.6 → 60 min ON Delay, ON Pulse, Symmetrical Recycler with Pause Start, Symmetrical Recycler with Pulse Start DIN Rail Multi Function 1 XM-D1 Minutes External SPDT 8 A Screw 10.5 V ac/dc, 24 V dc 265 V ac/dc
RS庫存編號 221-092
製造零件編號80.41.0.240.0000
BrandFinder
HK$471.78
單位
24 → 240 V ac/dc 0.1 → 20 min, 0.1 → 20 s, 0.1 → 24 h OFF Delay with Control Signal DIN Rail Single 1 80 Series Hours, Minutes, Seconds External SPDT 16 A Screw 16.8 V ac/dc 265 V ac/dc
RS庫存編號 729-8976
製造零件編號GT5P-N10SAD24 (HK)
BrandIdec
HK$2,404.56
單位
24 V ac/dc 10 s ON Delay DIN Rail Single 8 - Seconds External - 5 A - 120 V ac 240 V ac