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.


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รายละเอียดสินค้า / Description ราคา / Price Coil Voltage Coil Power Contact Configuration Coil Resistance Mounting Type Switching Current Isolation Coil To Contact Terminal Type Series Maximum Switching Voltage AC Maximum Switching Voltage DC Application Number of Poles Length
RS Stock No. 136-5225
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.G2R-1 24DC
Brand :Omron
THB123.77
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24 V dc - SPDT 1.1 kΩ PCB Mount 10A - Through Hole G2R-1 - - - - 29mm
RS Stock No. 366-265
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Brand :Omron
THB169.68
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24 V dc - SPDT 1.1 kΩ PCB Mount 10A - Through Hole G2R-1 - - - - 29mm
RS Stock No. 319-6182
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Brand :Omron
THB341.90
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24 V dc - DPDT 1.113 kΩ PCB Mount - - Plug In - - - - - 29mm
RS Stock No. 794-8136
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MY4N24DCS
Brand :Omron
THB493.19
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24 V dc 900mW 4PDT 636 Ω Plug In 5A 2kV ac Plug In MY4 250V 125V - - 36mm
RS Stock No. 488-2610
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MY2 24DC (S)
Brand :Omron
THB295.52
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24 V dc 900mW DPDT 636 Ω Plug In 10A 2kV Plug In MY 250V ac 30V dc - 2 28mm
RS Stock No. 488-2575
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Brand :Omron
THB383.80
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24 V dc 900mW 4PDT 636 Ω Plug In 3A 2kV Plug In MY4 250V ac 30V dc - 4 28mm
RS Stock No. 488-1869
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THB710.28
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24 V dc 900mW 4PDT 636 Ω Plug In 5A 2kV Plug In MY4 250V ac 30V dc - 4 28mm
RS Stock No. 488-1960
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MY2N 24DC(S)
Brand :Omron
THB348.40
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24 V dc 900mW DPDT 636 Ω Plug In 10A 2kV Plug In MY 250V ac 30V dc - 2 28mm
RS Stock No. 488-1904
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MY2 AC220/240(S)
Brand :Omron
THB327.08
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240 V ac 1.1W DPDT 18.79 kΩ Plug In 10A 2kV Plug In MY 250V ac 30V dc - 2 28mm
RS Stock No. 827-8387
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THB812.44
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24 V dc 900mW 4PDT 636 Ω Plug In 5A 2kV ac PCB Pin MY4 250V 125V - - 21.5mm
RS Stock No. 200-2020
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THB250.96
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12 V dc - SPNO 160 Ω Plug In 20A - Through Hole G4A - - - 1 30.5mm
RS Stock No. 794-8182
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MY4N 220/240AC(S)
Brand :Omron
THB440.15
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240 V ac 1.1W 4PDT 18.79 kΩ Plug In 5A 2kV ac Plug In MY4 250V 125V - - 36mm
RS Stock No. 353-837
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.G2R-1-SN 24DC(S)
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THB302.39
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24 V dc 530mW SPDT 1.1 kΩ Plug In 10A 5kV ac Plug In G2R-1 380V ac 125V dc - 1 29mm
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หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MY2N-CR AC220/240(S)
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THB623.73
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240 V ac 1.1W DPDT 18.79 kΩ Plug In 10A 2kV Plug In MY 250V ac 30V dc - 2 28mm
RS Stock No. 366-293
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.G2R-1-E 12DC
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THB171.00
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12 V dc - SPDT 275 Ω PCB Mount 16A - Through Hole G2R-1 - - - - 29mm
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หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MY4 DC24
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THB283.64
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24 V dc 900mW 4PDT 636 Ω Plug In 5A 2kV ac Through Hole MY4 250V ac 125V dc - - 28mm
RS Stock No. 369-494
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THB106.62
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5 V dc - DPDT 50 Ω PCB Mount 2A - Through Hole G5V - - - - 20.5mm
RS Stock No. 828-7328
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LY2N-DC24
Brand :Omron
THB621.30
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24 V dc 900mW DPDT 650 Ω Plug In 10A 2kV ac PCB Pin LY2N 250V 125V - - 21.5mm
RS Stock No. 353-887
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.G2R-2-SN 24DC(S)
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THB403.56
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24 V dc - DPDT 1.113 kΩ Plug In 5A - Plug In G2R-2 - - - 2 29mm
RS Stock No. 329-783
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THB627.55
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12 V dc - DPDT 160 Ω Plug In 10A - Quick Connect LY2 - - - 2 28mm