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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Omschrijving Prijs 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-stocknr. 812-7967
FabrikantnummerPM4HS-H-DC12VW
FabrikantPanasonic
€ 43,62
Each
Aantal stuks
12V dc 1 s → 500h - - Single 2 - Hours, Minutes, Seconds External DPDT 5A - - -
RS-stocknr. 812-7910
FabrikantnummerPM4HW-H-AC240VW
FabrikantPanasonic
€ 89,62
Each
Aantal stuks
100 → 240V ac 1 s → 500h - - Dual Function 2 - Hours, Minutes, Seconds External DPDT 5A - - -
RS-stocknr. 812-7917
FabrikantnummerPM4HS-H-DC12V
FabrikantPanasonic
€ 43,62
Each
Aantal stuks
12V dc 1 s → 500h - - Single 2 - Hours, Minutes, Seconds External DPDT 5A - - -
RS-stocknr. 228-677
FabrikantnummerPM4HWHAC240SWJ
FabrikantPanasonic
€ 94,96
Each
Aantal stuks
100 → 240V ac 1 s → 500h - - Single - - Hours, Seconds - - 5A Screw - 250V ac
RS-stocknr. 812-7847
FabrikantnummerS1DXMM2C10HAC120V
FabrikantPanasonic
€ 38,14
Each
Aantal stuks
120V ac - - Panel Mount Multi Function 2 S1DXM Hours, Minutes External - - Socket 80V ac 132V ac
RS-stocknr. 812-7964
FabrikantnummerS1DX-A2C60S-AC120V
FabrikantPanasonic
€ 50,51
Each
Aantal stuks
120V ac 60s - Panel Mount Single 2 - Seconds External - - Socket 80V ac 132V ac
RS-stocknr. 812-7908
FabrikantnummerLT4HWT-AC240VS
FabrikantPanasonic
€ 120,24
Each
Aantal stuks
100 → 240V ac 99.99 s → 9999h - - Multi Function 2 - Hours, Minutes, Seconds External - - Screw - -
RS-stocknr. 812-7875
FabrikantnummerPM4HA-H-24V
FabrikantPanasonic
€ 48,46
Each
Aantal stuks
24V ac/dc 1 s → 500h - - Multi Function 2 - Hours, Minutes, Seconds External DPDT 5A 11-Pin Connector - -
RS-stocknr. 812-7914
FabrikantnummerLT4H8-AC240V
FabrikantPanasonic
€ 109,43
Each
Aantal stuks
100 → 240V ac 9.999 s → 999.9h - - Multi Function 2 - Hours, Minutes, Seconds External SPDT 5A - - -
RS-stocknr. 515-0683
FabrikantnummerPM4HA-H-24VW
FabrikantPanasonic
€ 39,88
Each
Aantal stuks
24V ac/dc 1 s → 500h - - Single 2 - Hours, Seconds External DPDT - 11-Pin Connector - -
RS-stocknr. 515-0677
FabrikantnummerPM4HAHAC240SWJ
FabrikantPanasonic
€ 50,83
Each
Aantal stuks
100 → 240V ac 1 s → 500h - - Single 2 - Hours, Seconds External DPDT - Screw - -
RS-stocknr. 228-891
FabrikantnummerPM4HAH24J
FabrikantPanasonic
€ 47,94
Each
Aantal stuks
24V ac/dc 1 s → 500h - Chassis Mount Multi Function - - Hours, Seconds External - 5A 11-Pin Connector - 250V ac
RS-stocknr. 812-7881
FabrikantnummerLT4HW8-DC24V
FabrikantPanasonic
€ 127,56
Each
Aantal stuks
12 → 24V dc 99.99 s → 9999h - - Multi Function 2 - Hours, Minutes, Seconds External SPDT 5A - - -
RS-stocknr. 228-706
FabrikantnummerLC4HSVR424SJ
FabrikantPanasonic
€ 156,77
Each
Aantal stuks
24V ac - - Panel Mount - - - - - - - - - -
RS-stocknr. 812-7894
FabrikantnummerLT4HW-AC240VS
FabrikantPanasonic
€ 128,63
Each
Aantal stuks
100 → 240V ac 99.99 s → 9999h - - Multi Function 2 - Hours, Minutes, Seconds External SPDT 5A Screw - -
RS-stocknr. 228-918
FabrikantnummerPM4HAHAC240SJ
FabrikantPanasonic
€ 49,75
Each
Aantal stuks
100 → 240V ac 1 s → 500h - Chassis Mount Multi Function - - Hours, Seconds External - 5A Screw - 250V ac
RS-stocknr. 812-7926
FabrikantnummerLT4H8-AC24V
FabrikantPanasonic
€ 112,84
Each
Aantal stuks
24V ac 9.999 s → 999.9h - - Multi Function 2 - Hours, Minutes, Seconds External SPDT 5A - - -
RS-stocknr. 812-7879
FabrikantnummerPM4HA-H-AC240V
FabrikantPanasonic
€ 50,41
Each
Aantal stuks
100 → 240V ac 1 s → 500h - - Multi Function 2 - Hours, Minutes, Seconds External DPDT 5A 11-Pin Connector - -
RS-stocknr. 812-7951
FabrikantnummerPMH-10M-AC24V
FabrikantPanasonic
€ 60,15
Each
Aantal stuks
24V ac 0.05 s → 10min - - Single 2 - Minutes, Seconds External DPDT 7A - - -
RS-stocknr. 609-8980
FabrikantnummerS1DXM-M2C10H-DC24V-S
FabrikantPanasonic
€ 43,17
Each
Aantal stuks
24V dc 1 min → 10h - - - - S1DXM Hours, Minutes - - - - - -