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. 392-7223
Fabrikantnummer3RP1505-1BP30
FabrikantSiemens
€ 119,00
Each
Aantal stuks
24 V ac, 24 V dc, 200 → 240 V ac 0.5 → 10 s - - Multi Function - - Seconds External DPDT - Screw - -
RS-stocknr. 746-5110
Fabrikantnummer3RP1505-1AW30
FabrikantSiemens
€ 118,00
Each
Aantal stuks
24 → 240 V ac/dc 1.5 → 30 s - DIN Rail Multi Function 1 - Seconds External SPDT 1 (dc) A, 3 (ac) A Screw 24 V ac/dc 250 V dc, 400 V ac
RS-stocknr. 746-5117
Fabrikantnummer3RP1505-1AQ30
FabrikantSiemens
€ 105,00
Each
Aantal stuks
24 V dc, 100 → 127 V ac 0.15 → 3 s - DIN Rail Multi Function 1 - Seconds External SPDT 1 (dc) A, 3 (ac) A Screw 24 V ac/dc 250 V dc, 400 V ac
RS-stocknr. 392-7239
Fabrikantnummer3RP1505-1AP30
FabrikantSiemens
€ 105,00
Each
Aantal stuks
24 V ac, 24 V dc, 200 → 240 V ac 0.5 → 10 s - - Multi Function - - Seconds External SPDT - Screw - -
RS-stocknr. 746-5173
Fabrikantnummer3RP1555-1AP30
FabrikantSiemens
€ 135,00
Each
Aantal stuks
24 V ac/dc, 200 → 240 V ac 0.5 → 10 s Clock Pulse DIN Rail Single 1 - Seconds External SPDT 1 (dc) A, 3 (ac) A Screw 24 V ac/dc 250 V dc, 400 V ac
RS-stocknr. 746-5126
Fabrikantnummer3RP1505-1BW30
FabrikantSiemens
€ 145,00
Each
Aantal stuks
24 → 240 V ac/dc 0.5 → 10 min - DIN Rail Multi Function 2 - Minutes External DPDT 1 (dc) A, 3 (ac) A Screw 24 V ac/dc 250 V dc, 400 V ac
RS-stocknr. 746-5120
Fabrikantnummer3RP1505-1RW30
FabrikantSiemens
€ 174,00
Each
Aantal stuks
24 → 240 V ac/dc 0.05 → 1 h - DIN Rail Multi Function 2 - Seconds External DPDT 1 (dc) A, 3 (ac) A Screw 24 V ac/dc 250 V dc, 400 V ac
RS-stocknr. 746-5154
Fabrikantnummer3RP1532-1AP30
FabrikantSiemens
€ 96,00
Each
Aantal stuks
24 V ac/dc, 200 → 240 V ac 1.5 → 30 s OFF Delay DIN Rail Single 1 - Seconds External SPDT 1 (dc) A, 3 (ac) A Screw 24 V ac/dc 250 V dc, 400 V ac
RS-stocknr. 392-7188
Fabrikantnummer3RP1574-1NP30
FabrikantSiemens
€ 72,10
Each
Aantal stuks
200 → 240 V 1 → 20 s WYE Delta - Single 2 - Seconds External SPDT - Screw - -
RS-stocknr. 699-7067
Fabrikantnummer7PV1518-1AW30
FabrikantSiemens
€ 30,42
Each
Aantal stuks
12 → 240 V ac/dc 0.05 → 100 s, 3 → 100 min, 5 → 100 h ON Delay DIN Rail Single 1 - Hours, Minutes, Seconds External SPDT 1 (dc) A, 3 (ac) A Screw - 250 V ac/dc
RS-stocknr. 699-7060
Fabrikantnummer7PV1538-1AW30
FabrikantSiemens
€ 40,56
Each
Aantal stuks
12 → 240 V ac/dc 0.05 → 100 s, 3 → 100 min, 5 → 100 h OFF Delay DIN Rail Single 1 - Hours, Minutes, Seconds External SPDT 1 (dc) A, 3 (ac) A Screw - 250 V ac/dc
RS-stocknr. 831-6075
Fabrikantnummer3RP2576-1NW30
FabrikantSiemens
€ 72,00
Each
Aantal stuks
12 → 240 V ac/dc 3 → 60 s Star Delta - Single 2 - Seconds - DPNO - Screw 12 V ac/dc 240 V ac/dc
RS-stocknr. 834-7509
Fabrikantnummer3RP1540-1BN31
FabrikantSiemens
€ 162,00
Each
Aantal stuks
200 → 240 V 0.05 → 600 s OFF Delay DIN Rail Single 2 - Seconds External DPDT 1 A Screw - -
RS-stocknr. 746-5114
Fabrikantnummer3RP1505-1BQ30
FabrikantSiemens
€ 119,00
Each
Aantal stuks
24 V dc, 100 → 127 V ac 5 → 100 s - DIN Rail Multi Function 2 - Seconds External DPDT 1 (dc) A, 3 (ac) A Screw 24 V ac/dc 250 V dc, 400 V ac
RS-stocknr. 392-7217
Fabrikantnummer3RP15111AP30
FabrikantSiemens
€ 64,20
Each
Aantal stuks
24 V ac, 24 V dc, 200 → 240 V ac 0.5 → 10 s ON Delay - Single - - Seconds External SPDT - Screw - -
RS-stocknr. 834-7473
Fabrikantnummer3RP1512-1AP30
FabrikantSiemens
€ 55,80
Each
Aantal stuks
200 → 240 V 1.5 → 30 s ON Delay DIN Rail Single 1 - Seconds External SPDT 1 A Screw - -
RS-stocknr. 746-5167
Fabrikantnummer3RP1540-1AN31
FabrikantSiemens
€ 122,00
Each
Aantal stuks
200 → 240 V ac/dc 0.3 → 6 s OFF Delay DIN Rail Single 1 - Seconds External SPDT 1 (dc) A, 3 (ac) A Screw 24 V ac/dc 250 V dc, 400 V ac
RS-stocknr. 746-5123
Fabrikantnummer3RP1505-1BT20
FabrikantSiemens
€ 127,00
Each
Aantal stuks
400 → 440 V ac 1.5 → 30 min - DIN Rail Multi Function 2 - Minutes External DPDT 1 (dc) A, 3 (ac) A Screw 24 V ac/dc 250 V dc, 400 V ac
RS-stocknr. 834-7470
Fabrikantnummer3RP1511-2AP30
FabrikantSiemens
€ 65,30
Each
Aantal stuks
200 → 240 V 0.5 → 10 s ON Delay DIN Rail Multi Function 1 - Seconds External SPDT 1 A Cage Clamp - -
RS-stocknr. 699-7058
Fabrikantnummer7PV1508-1AW30
FabrikantSiemens
€ 44,75
Each
Aantal stuks
12 → 240 V ac/dc 0.05 → 100 s, 3 → 100 min, 5 → 100 h Additive ON Delay with Auxiliary Voltage, Flash Start with Interval, OFF Delay with Auxiliary Voltage, ON Delay, Passing Break Contact with Auxiliary Voltage, Passing Make Contact, Pulse Former with Auxiliary Voltage DIN Rail Multi Function 1 - Hours, Minutes, Seconds External SPDT 1 (dc) A, 3 (ac) A Screw - 250 V ac/dc