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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Viewing 1 - 20 of 23 products
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Description Price Supply Voltage Time Range Mounting Type Number of Timer Functions Number of Contacts Series Time Increment Power Supply Contact Configuration Current Maximum Terminal Type Minimum Voltage Maximum Voltage Contact Material
RS Stock No. 358-7140
Mfr. Part No.BC7931N.71 AC/DC24V + AC230V 0.5-10S
BrandDold
TWD2,120.00
Each
units
24 V ac/dc, 230V ac 0.05 → 100s DIN Rail Single 1 BC7931N Seconds External SPDT 3A Screw - 230V ac -
RS Stock No. 358-6939
Mfr. Part No.BC7933N.81 AC110-240V 0.5-10M
BrandDold
TWD2,580.00
Each
units
110 → 240V ac 0.5 → 10min DIN Rail Single 1 BC7933N Minutes, Seconds External SPDT 4A - 110V ac 240V ac -
RS Stock No. 358-6872
Mfr. Part No.BC7933N.81 AC110-240V 0.5-10S
BrandDold
TWD2,606.00
Each
units
110 → 240V ac 0.5 → 10s DIN Rail Single 1 BC7933N Hours, Minutes, Seconds External SPDT 3A Screw 110V ac 240V ac -
RS Stock No. 358-7213
Mfr. Part No.BC7933N.81 AC/DC24V 5-100S
BrandDold
TWD2,606.00
Each
units
110 → 240V ac 5 → 100s DIN Rail Single 1 BC7933N Minutes, Seconds External SPDT 4A - 110V ac 240V ac -
RS Stock No. 358-7077
Mfr. Part No.BC7930N.81 AC/DC24V + AC230V 0.5-10S
BrandDold
TWD2,130.00
Each
units
24 V ac/dc, 230V ac 0.5 → 10s DIN Rail Single 1 BC7930N Hours, Minutes, Seconds External SPDT 4A - - 230V ac -
RS Stock No. 358-6888
Mfr. Part No.BC7933N.81 AC/DC24V 0.5-10S
BrandDold
TWD2,606.00
Each
units
110 → 240V ac 0.5 → 10s DIN Rail Single 1 BC7933N Minutes, Seconds External SPDT 4A - 110V ac 12 V dc, 240V ac -
RS Stock No. 181-2777
Mfr. Part No.UG6960.04PS/100/61 DC24V 300s
BrandDold
TWD15,679.00
Each
units
24V dc 300s DIN Rail Multi Function 4 UG6960 Seconds - DPNO 2A Screw - 24V dc -
RS Stock No. 358-7235
Mfr. Part No.BC7934N.81 AC/DC24V + AC230V 0.05S-16H
BrandDold
TWD2,580.00
Each
units
24 V ac/dc, 230V ac 0.05 → 15 s, 0.2 → 15 min, 0.2 → 16h DIN Rail Single 1 BC7934N Hours, Minutes, Seconds External SPDT 3A Screw - 230V ac -
RS Stock No. 465-0609
Mfr. Part No.IK7817N.81/200 AC/DC12-240V 0.02s-300h
BrandDold
TWD5,010.00
Each
units
12 → 240V ac/dc 0.03 → 300 min, 0.06 → 30 s, 3 → 300h DIN Rail Multi Function 1 IK7817N Hours, Minutes, Seconds External SPDT 4A - 12V ac/dc 240V ac/dc -
RS Stock No. 181-2808
Mfr. Part No.EF7616.24 AC50/60Hz 230V 0,2s-60h
BrandDold
TWD10,501.00
Each
units
230V ac 0.2 s → 60h - Single 24 EF7616 Hours, Seconds External - 3A Screw - 230V ac -
RS Stock No. 358-7178
Mfr. Part No.BC7935N.81 AC/DC24-240V 0.05S-300H
BrandDold
TWD4,272.00
Each
units
24 → 240V ac/dc 0.5 → 10s DIN Rail Multi Function 1 BC7935N Hours, Minutes, Seconds External SPDT 3A Screw 24V ac 240V ac/dc -
RS Stock No. 424-9912
Mfr. Part No.MK7850N.82/500 AC/DC12-240V 0.02S-300H
BrandDold
TWD6,235.00
Each
units
12 → 240V ac/dc 0.03 → 300 min, 0.06 → 30 s, 3 → 300h DIN Rail Multi Function 2 MK7850N Hours, Minutes, Seconds External DPDT 4A - 12V ac/dc 240V ac/dc -
RS Stock No. 181-2811
Mfr. Part No.EF7666.24 AC50/60Hz 230V 0,15s-30h
BrandDold
TWD9,831.00
Each
units
230V ac 0.15 s → 30h - Single 24 EF7666 Hours, Seconds - - 3A - - 230V ac -
RS Stock No. 181-2807
Mfr. Part No.EF7616.24 AC50/60Hz 230V 0,15-1000s
BrandDold
TWD9,960.00
Each
units
230V ac 15 → 1000s - Single 24 EF7616 Seconds External - 3A Screw - 230V ac -
RS Stock No. 358-7156
Mfr. Part No.BC7932N.81 AC/DC24V + AC230V 0.5-10S
BrandDold
TWD2,194.00
Each
units
24 V ac/dc, 230V ac 0.5 → 10s DIN Rail Single 1 BC7932N Seconds External SPDT 3A Screw - 230V ac -
RS Stock No. 181-2778
Mfr. Part No.UG6961.02PS/100/61 DC24V 300s
BrandDold
TWD11,349.00
Each
units
24V dc 300s DIN Rail Multi Function 2 UG6961 Seconds - DPNO 2A Screw - 24V dc -
RS Stock No. 358-7112
Mfr. Part No.BC7933N.81 AC/DC24V 3-60M
BrandDold
TWD2,518.00
Each
units
110 → 240V ac 0.5 → 100 s, 0.5 → 60min DIN Rail Single 1 BC7933N Minutes, Seconds External SPDT 4A - 110V ac 240V ac -
RS Stock No. 500-3521
Mfr. Part No.EF7616.24 AC50/60HZ 230V 0.15S-30H
BrandDold
TWD9,986.00
Each
units
230V ac 0.15 s → 30h Panel Mount Single 2 EF7616 Hours, Seconds External SPDT 3A - - 230V ac -
RS Stock No. 181-2812
Mfr. Part No.EF7666.24 AC50/60Hz 230V 0,2s-60h
BrandDold
TWD10,626.00
Each
units
230V ac 0.2 s → 60h - Single 24 EF7666 Hours, Seconds - - 3A - - 230V ac -
RS Stock No. 424-9906
Mfr. Part No.MK7850N.82/200 AC/DC12-240V 0.02S-300H
BrandDold
TWD5,225.00
Each
units
12 → 240V ac/dc 0.03 → 300 min, 0.06 → 30 s, 3 → 300h DIN Rail Multi Function 2 MK7850N Hours, Minutes, Seconds External DPDT - - - 240V ac/dc -