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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Beskrivning Pris 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-artikelnummer 358-7213
Tillv. art.nrBC7933N.81 AC/DC24V 5-100S
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649,61 kr
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110 → 240 V ac 5 → 100 s Continuous DIN Rail Single 1 BC7933N Minutes, Seconds External SPDT 4 A - 110 V ac 240 V ac
RS-artikelnummer 358-7077
Tillv. art.nrBC7930N.81 AC/DC24V + AC230V 0.5-10S
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530,81 kr
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24 V ac/dc, 230 V ac 0.05 → 100 s, 0.2 → 16 h, 0.2 → 60 min Continuous DIN Rail Single 1 BC7930N Hours, Minutes, Seconds External SPDT 4 A - - 230 V ac
RS-artikelnummer 358-7156
Tillv. art.nrBC7932N.81 AC/DC24V + AC230V 0.5-10S
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546,86 kr
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24 V ac/dc, 230 V ac 0.5 → 10 s Flash DIN Rail Single 1 BC7932N Seconds External SPDT 3 A Screw - 230 V ac
RS-artikelnummer 500-3521
Tillv. art.nrEF7616.24 AC50/60HZ 230V 0.15S-30H
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2 489,26 kr
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230 V ac 0.15 s → 30 h Continuous Panel Mount Single 2 EF7616 Hours, Seconds External SPDT 3 A - - 230 V ac
RS-artikelnummer 358-7099
Tillv. art.nrBC7931N.71 AC/DC24V + AC230V 0.05-1S
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546,86 kr
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24 V ac/dc, 230 V ac 0.05 → 1 s Continuous DIN Rail Single 1 BC7931N Seconds External SPDT 4 A - - 230 V ac
RS-artikelnummer 358-7112
Tillv. art.nrBC7933N.81 AC/DC24V 3-60M
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649,61 kr
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110 → 240 V ac 0.5 → 100 s, 0.5 → 60 min Continuous DIN Rail Single 1 BC7933N Minutes, Seconds External SPDT 4 A - 110 V ac 240 V ac
RS-artikelnummer 181-2807
Tillv. art.nrEF7616.24 AC50/60Hz 230V 0,15-1000s
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2 399,35 kr
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230 V ac 15 → 1000 s Continuous Flush Mount Single 24 EF7616 Seconds External NO/NC (Delayed), NO/NC (Instantaneous) 3 A Screw - 230 V ac
RS-artikelnummer 358-6872
Tillv. art.nrBC7933N.81 AC110-240V 0.5-10S
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649,61 kr
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110 → 240 V ac 0.5 → 10 s Continuous DIN Rail Single 1 BC7933N Hours, Minutes, Seconds External SPDT 3 A Screw 110 V ac 240 V ac
RS-artikelnummer 358-6939
Tillv. art.nrBC7933N.81 AC110-240V 0.5-10M
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643,18 kr
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110 → 240 V ac 0.5 → 10 min Continuous DIN Rail Single 1 BC7933N Minutes, Seconds External SPDT 4 A - 110 V ac 240 V ac
RS-artikelnummer 358-7140
Tillv. art.nrBC7931N.71 AC/DC24V + AC230V 0.5-10S
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546,86 kr
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24 V ac/dc, 230 V ac 0.05 → 100 s Fleeting DIN Rail Single 1 BC7931N Seconds External SPDT 3 A Screw - 230 V ac
RS-artikelnummer 181-2778
Tillv. art.nrUG6961.02PS/100/61 DC24V 300s
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2 829,51 kr
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24 V dc 300 s Continuous DIN Rail Multi Function 2 UG6961 Seconds - DPNO 2 A Screw - 24 V dc
RS-artikelnummer 181-2808
Tillv. art.nrEF7616.24 AC50/60Hz 230V 0,2s-60h
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2 529,99 kr
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230 V ac 0.2 s → 60 h Continuous Flush Mount Single 24 EF7616 Hours, Seconds External NO/NC (Delayed), NO/NC (Instantaneous) 3 A Screw - 230 V ac
RS-artikelnummer 181-2812
Tillv. art.nrEF7666.24 AC50/60Hz 230V 0,2s-60h
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2 558,78 kr
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230 V ac 0.2 s → 60 h Continuous Flush Mount Single 24 EF7666 Hours, Seconds - NO/NC (Delayed), NO/NC (Instantaneous) 3 A Flat - 230 V ac
RS-artikelnummer 358-7235
Tillv. art.nrBC7934N.81 AC/DC24V + AC230V 0.05S-16H
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643,18 kr
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24 V ac/dc, 230 V ac 0.05 → 15 s, 0.2 → 15 min, 0.2 → 16 h Continuous DIN Rail Single 1 BC7934N Hours, Minutes, Seconds External SPDT 3 A Screw - 230 V ac
RS-artikelnummer 358-7178
Tillv. art.nrBC7935N.81 AC/DC24-240V 0.05S-300H
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1 064,84 kr
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24 → 240 V ac/dc 0.5 → 10 s Flash Start with Impulse, Fleeting ON Break, Fleeting ON Make, Operate Delay, Operate/Release Delay, Pulse Delay, Pulse Former, Release Delay DIN Rail Multi Function 1 BC7935N Hours, Minutes, Seconds External SPDT 3 A Screw 24 V ac 240 V ac/dc
RS-artikelnummer 181-2777
Tillv. art.nrUG6960.04PS/100/61 DC24V 300s
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3 775,57 kr
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24 V dc 300 s Continuous DIN Rail Multi Function 4 UG6960 Seconds - DPNO 2 A Screw - 24 V dc
RS-artikelnummer 424-9906
Tillv. art.nrMK7850N.82/200 AC/DC12-240V 0.02S-300H
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1 302,42 kr
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12 → 240 V ac/dc 0.03 → 300 min, 0.06 → 30 s, 3 → 300 h Delay Pulse, Flash Start with Impulse, Fleeting ON Break, Fleeting ON Make, Operate Delay, Pulse Former, Release Delay DIN Rail Multi Function 2 MK7850N Hours, Minutes, Seconds External DPDT 1 (dc) A, 3 (ac) A - - 240 V ac/dc
RS-artikelnummer 181-2809
Tillv. art.nrEF7666.24 AC50/60Hz 230V 0,15-1000s
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2 450,68 kr
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230 V ac 15 → 1000 s Continuous Flush Mount Single 24 EF7666 Seconds - NO/NC (Delayed), NO/NC (Instantaneous) 3 A Flat - 230 V ac
RS-artikelnummer 358-6888
Tillv. art.nrBC7933N.81 AC/DC24V 0.5-10S
VarumärkeDold
649,61 kr
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110 → 240 V ac 0.5 → 10 s Continuous DIN Rail Single 1 BC7933N Minutes, Seconds External SPDT 4 A - 110 V ac 12 V dc, 240 V ac
RS-artikelnummer 424-9912
Tillv. art.nrMK7850N.82/500 AC/DC12-240V 0.02S-300H
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1 608,49 kr
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12 → 240 V ac/dc 0.03 → 300 min, 0.06 → 30 s, 3 → 300 h Delay (AV), Delay (RV), Flash (BI), Fleeting (AW), Fleeting (EW), Pulse Converter (IF), Pulse Delay (IE), Release Relay (AV/RV) DIN Rail Multi Function 2 MK7850N Hours, Minutes, Seconds External DPDT 4 A - 12 V ac/dc 240 V ac/dc