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Non-Latching Relays

Relays are electrical switches that are operated by electrical impulses with the primary function to open and close a circuit, they can also be referred to as industrial switches. There are 2 main types available, latching and non–latching relays. How do non-latching relays work? Non-latching relays are in a normally closed (NC) position and will stay in this state without power. When power passes through the circuit, the relay switched to a normally open (NO) position by using an internal coil to generate a magnetic force, holding this NO position. Once the current is turned off, it returns to the NC position. This makes non-latching relays well suited to push-button applications like keyboards and micro-controller input buttons. What are non-latching relays used for? Non-latching relays are highly durable and versatile components, making their performance long lasting and suitable for use in a wide range of applications, such as: Automotive engines. Household appliances. Industrial machinery. Medical equipment. Telecommunications equipment. What is the difference between latching and non-latching relays? Both types of relays in similar in design and function, however, a significant difference between them is that a latching relay will remain in the last position it when it was last powered, whereas a non-latching goes back to its normal position. This makes each more type of relay suitable for different applications. Considerations when selecting a relay. When choosing a relay, it is important to consider a number of specifications to ensure it is fit for purpose, some factors include: Coil voltage – the required voltage to actuate the switching mechanism. If a voltage is too high this could damage the components, if it is too low then it will not actuate.Contact configuration – This is the state the contacts are in without power. For example SPST, single pole single throw. Contact material – the relay contacts are available in many materials that have certain properties. Common materials are gold, silver, tin oxide and nickel. Coil power – the amount of power (watts) the coil operates at. This must match the power in the circuit for correct function. Coil resistance – the amount of resistance (ohms) in the circuit that the coil creates.

 

Showing 1–24 of 570 results

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  • Product image for 3PDT relay w/test button,10A 110Vac coil

    Finder, 110V ac Coil Non-Latching Relay 3PDT, 10A Switching Current Plug In

    RS Stock No.
    0350743
    Brand
    Finder
    Mfr. Prt No.
    60.13.8.110.0040
    VND
    453,409.04
  • Product image for 3P plug in relay 110V 10A

    Finder, 110V ac Coil Non-Latching Relay 3PDT, 10A Switching Current Plug In, 3 Pole

    RS Stock No.
    7761676
    Brand
    Finder
    Mfr. Prt No.
    55.33.8.110.0010
    VND
    388,636.32
  • Product image for 4P plug in relay with LED 110Vac 7A

    Finder, 110V ac Coil Non-Latching Relay 4PDT, 7A Switching Current Plug In, 4 Pole

    RS Stock No.
    7761658
    Brand
    Finder
    Mfr. Prt No.
    55.34.8.110.0054
    VND
    397,651.08
  • Product image for 4PDT mini plug-in relay,7A 110Vac coil

    Finder, 110V ac Coil Non-Latching Relay 4PDT, 7A Switching Current Plug In, 4 Pole

    RS Stock No.
    0385941
    Brand
    Finder
    Mfr. Prt No.
    55.34.8.110.0040
    VND
    390,472.66
  • Product image for DPDT relay w/test button,10A 110Vac coil

    Finder, 110V ac Coil Non-Latching Relay DPDT, 10A Switching Current Plug In

    RS Stock No.
    0350658
    Brand
    Finder
    Mfr. Prt No.
    60.12.8.110.0040
    VND
    457,582.54
  • Product image for 3PDT relay w/test button,10A 110Vdc coil

    Finder, 110V dc Coil Non-Latching Relay 3PDT, 10A Switching Current Plug In, 3 Pole

    RS Stock No.
    0350709
    Brand
    Finder
    Mfr. Prt No.
    60.13.9.110.0040
    VND
    466,764.24
  • Product image for Modular contactor 2NO 25A 12V ac/dc

    Finder, 12V ac/dc Coil Non-Latching Relay DPNO, 25A Switching Current DIN Rail, 2 Pole

    RS Stock No.
    7892705
    Brand
    Finder
    Mfr. Prt No.
    22.32.0.012.4320
    VND
    658,077.48
  • Product image for 3PDT relay w/test button,10A 12Vdc coil

    Finder, 12V dc Coil Non-Latching Relay 3PDT, 10A Switching Current Plug In

    RS Stock No.
    0350670
    Brand
    Finder
    Mfr. Prt No.
    60.13.9.012.0040
    VND
    436,047.28
  • Product image for 3PDT power relay,16A 12Vdc coil

    Finder, 12V dc Coil Non-Latching Relay 3PDT, 16A Switching Current Flange Mount, 3 Pole

    RS Stock No.
    2452447
    Brand
    Finder
    Mfr. Prt No.
    62.83.9.012.0000
    VND
    422,859.02
  • Product image for 4PDT mini plug-in relay,7A 12Vdc coil

    Finder, 12V dc Coil Non-Latching Relay 4PDT, 7A Switching Current Plug In, 4 Pole

    RS Stock No.
    0385913
    Brand
    Finder
    Mfr. Prt No.
    55.34.9.012.0040
    VND
    220,193.86
  • Product image for RELAY 55. 2RT/12 VDC

    Finder, 12V dc Coil Non-Latching Relay DPDT, 10A Switching Current Plug In, 2 Pole

    RS Stock No.
    1893156
    Brand
    Finder
    Mfr. Prt No.
    55.32.9.012.0040
    VND
    246,570.38
  • Product image for DPDT 12A mini plug-in relay, 12Vdc coil

    Finder, 12V dc Coil Non-Latching Relay DPDT, 12A Switching Current Plug In, 2 Pole

    RS Stock No.
    0154605
    Brand
    Finder
    Mfr. Prt No.
    56.32.9.012.0040
    VND
    239,225.02
  • Product image for Plug in relay w/ LED, 8A, 12Vdc, DPDT

    Finder, 12V dc Coil Non-Latching Relay DPDT, 8A Switching Current PCB Mount, 2 Pole

    RS Stock No.
    5345320
    Brand
    Finder
    Mfr. Prt No.
    46.52.9.012.0074
    VND
    215,853.42
  • Product image for 20A 2NO monostable DIN relay, 12Vdc

    Finder, 12V dc Coil Non-Latching Relay DPNO, 20A Switching Current DIN Rail, 2 Pole

    RS Stock No.
    5111133
    Brand
    Finder
    Mfr. Prt No.
    22.22.9.012.4000
    VND
    777,773.46
  • Product image for Plug in relay w/ flag, 16A, 12Vdc, SPDT

    Finder, 12V dc Coil Non-Latching Relay SPDT, 25A Switching Current Plug In Single Pole

    RS Stock No.
    5085595
    Brand
    Finder
    Mfr. Prt No.
    46.61.9.012.0040
    VND
    186,805.86
  • Product image for 3PNO power relay,16A 230Vac coil

    Finder, 230V ac Coil Non-Latching Relay 3P-NO, 16A Switching Current Plug In, 3 Pole

    RS Stock No.
    2452526
    Brand
    Finder
    Mfr. Prt No.
    62.83.8.230.0300
    VND
    343,228.64
  • Product image for 3PDT relay w/test button,10A 230Vac coil

    Finder, 230V ac Coil Non-Latching Relay 3PDT, 10A Switching Current Plug In

    RS Stock No.
    0350759
    Brand
    Finder
    Mfr. Prt No.
    60.13.8.230.0040
    VND
    480,787.20
  • Product image for RELAY 5533 230V 3RT

    Finder, 230V ac Coil Non-Latching Relay 3PDT, 10A Switching Current Plug In, 3 Pole

    RS Stock No.
    2928310
    Brand
    Finder
    Mfr. Prt No.
    55.33.8.230.0010
    VND
    289,473.96
  • Product image for 3PDT power relay,16A 230Vac coil

    Finder, 230V ac Coil Non-Latching Relay 3PDT, 16A Switching Current Plug In, 3 Pole

    RS Stock No.
    2452481
    Brand
    Finder
    Mfr. Prt No.
    62.83.8.230.0000
    VND
    333,212.24
  • Product image for RELAY 6233 230V 3RT

    Finder, 230V ac Coil Non-Latching Relay 3PDT, 16A Switching Current Plug In, 3 Pole

    RS Stock No.
    2928736
    Brand
    Finder
    Mfr. Prt No.
    62.33.8.230.0040
    VND
    415,513.66
  • Product image for 4PDT 12A mini plug-in relay, 230Vac coil

    Finder, 230V ac Coil Non-Latching Relay 4PDT, 12A Switching Current Plug In, 4 Pole

    RS Stock No.
    0154598
    Brand
    Finder
    Mfr. Prt No.
    56.34.8.230.0040
    VND
    483,959.06
  • Product image for 4PDT mini plug-in relay,7A 230Vac coil

    Finder, 230V ac Coil Non-Latching Relay 4PDT, 7A Switching Current Plug In, 4 Pole

    RS Stock No.
    0385957
    Brand
    Finder
    Mfr. Prt No.
    55.34.8.230.0040
    VND
    278,956.74
  • Product image for 4P plug in relay with LED 230Vac 7A

    Finder, 230V ac Coil Non-Latching Relay 4PDT, 7A Switching Current Plug In, 4 Pole

    RS Stock No.
    7761667
    Brand
    Finder
    Mfr. Prt No.
    55.34.8.230.0054
    VND
    272,279.14
  • Product image for DPDT relay w/test button,10A 230Vac coil

    Finder, 230V ac Coil Non-Latching Relay DPDT, 10A Switching Current Plug In

    RS Stock No.
    0350664
    Brand
    Finder
    Mfr. Prt No.
    60.12.8.230.0040
    VND
    451,739.64