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 Maximum Switching Current AC Terminal Type Series Maximum Switching Voltage AC Maximum Switching Voltage DC Application Number of Poles
RS Stock No. 290-1416
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.2961105
THB252.83
Each
Units
24 V dc - SPDT 3.39 kΩ PCB Mount 10 mA - - PCB Pin REL-MR- 24DC/21 - - Compact 1
RS Stock No. 136-5225
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.G2R-1 24DC
Brand :Omron
THB103.455
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24 V dc - SPDT 1.1 kΩ PCB Mount 10A - - Through Hole G2R-1 - - - -
RS Stock No. 366-265
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.G2R-1 24DC
Brand :Omron
THB145.00
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24 V dc - SPDT 1.1 kΩ PCB Mount 10A - - Through Hole G2R-1 - - - -
RS Stock No. 476-630
Brand :RS PRO
THB172.62
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24 V dc 170mW SPDT 3.39 kΩ PCB Mount 6A 4kV ac - Through Hole - 400V ac 125V dc - 1
RS Stock No. 450-0295
Brand :RS PRO
THB197.35
Each
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24 V dc 900mW SPDT 750 Ω PCB Mount 15A 1.5kV ac - PCB Pin - 240V ac 28V dc - 1
RS Stock No. 256-0649
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.V23079A1001B301 1393788-3
THB62.26
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5 V dc - DPDT 178 Ω PCB Mount 2A - - Through Hole P2 - - - -
RS Stock No. 135-4739
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.V23079A1001B301
THB53.257
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5 V dc - DPDT 178 Ω PCB Mount 5A - - Through Hole - - - - -
RS Stock No. 319-6182
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.G2R-2-SND DC24V
Brand :Omron
THB231.57
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24 V dc - DPDT 1.113 kΩ PCB Mount - - - Plug In - - - - -
RS Stock No. 794-8136
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MY4N24DCS
Brand :Omron
THB402.59
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24 V dc 900mW 4PDT 636 Ω Plug In 5A 2kV ac - Plug In MY4 250V 125V - -
RS Stock No. 511-1149
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.22.22.9.024.4000
Brand :Finder
THB1,087.01
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24 V dc 1.25W DPNO 460 Ω DIN Rail 20A 4kV - Screw 22 Series 250V ac - - 2
RS Stock No. 488-2610
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MY2 24DC (S)
Brand :Omron
THB234.92
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24 V dc 900mW DPDT 636 Ω Plug In 10A 2kV - Plug In MY 250V ac 30V dc - 2
RS Stock No. 815-4900
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.DS2E-S-DC12V
Brand :Panasonic
THB216.88
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12 V dc 200mW DPDT 720 Ω PCB Mount 2A 1.5kV rms - PCB Pin - 250V 220V - -
RS Stock No. 488-2575
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MY4 24DC (S)
Brand :Omron
THB310.01
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24 V dc 900 4PDT 636 Ω Plug In 3A 2kV - Plug In MY4 250V ac 30V dc - 4
RS Stock No. 308-1311
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.2942153
THB2,226.02
Each
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24 V dc - SPDT 1.143 kΩ DIN Rail - - - Screw EMG REL - - - -
RS Stock No. 488-1869
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MY4N-D2 24DC(S)
Brand :Omron
THB583.07
Each
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24 V dc 900mW 4PDT 636 Ω Plug In 5A 2kV - Plug In MY4 250V ac 30V dc - 4
RS Stock No. 508-0023
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.2961192
THB160.85
Each
Units
24 V dc - DPDT 1.44 kΩ PCB Mount 8A - - Through Hole REL-MR- 24DC/21-21 - - - -
RS Stock No. 457-2846
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.34.51.7.024.0010
Brand :Finder
THB273.28
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24 V dc 170mW SPDT 3.35 kΩ PCB Mount 6A 6kV - PCB Pin 34 Series 400V ac - - 1
RS Stock No. 161-4086
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.1-1393222-5
THB74.83
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9 V dc 220mW SPNO 364 Ω PCB Mount 8A 4kV rms - Through Hole - 400V ac - - -
RS Stock No. 189-4109
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RT314024 9-1393239-8
THB76.63
Each
Units
24 V dc - SPDT 1.44 kΩ PCB Mount 16A - - Through Hole RT3 - - - -
RS Stock No. 135-4660
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RT314024 9-1393239-8
THB71.853
Each (In a Box of 20)
Units
24 V dc - SPDT 1.44 kΩ PCB Mount 16A - - Through Hole - - - - -
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