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.


...
Read more Read less

Filters

Viewing 81 - 100 of 4440 products
Results per page
Description 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. 488-1982
Mfr. Part No.MY2N-D2 24DC(S)
BrandOmron
TWD475.00
Each
units
24 V dc 900mW DPDT 636 Ω Plug In 10A 2kV Plug In MY 250V ac 30V dc - 2 28mm
RS Stock No. 488-1869
Mfr. Part No.MY4N-D2 24DC(S)
BrandOmron
TWD528.00
Each
units
24 V dc 900mW 4PDT 636 Ω Plug In 5A 2kV Plug In MY4 250V ac 30V dc - 4 28mm
RS Stock No. 256-2437
Mfr. Part No.V23092A1012A302
TWD248.00
Each
units
12 V dc 170mW SPNO 848 Ω PCB Mount 6A 4kV rms Through Hole SNR 400V ac - - - 28mm
RS Stock No. 366-265
Mfr. Part No.G2R-1 24DC
BrandOmron
TWD147.00
Each
units
24 V dc - SPDT 1.1 kΩ PCB Mount 10A - Through Hole G2R-1 - - - - 29mm
RS Stock No. 366-293
Mfr. Part No.G2R-1-E 12DC
BrandOmron
TWD193.00
Each
units
12 V dc - SPDT 275 Ω PCB Mount 16A - Through Hole G2R-1 - - - - 29mm
RS Stock No. 535-2407
Mfr. Part No.PT270L24 9-1415001-1
TWD394.00
Each
units
24 V dc 741mW DPDT 777 Ω PCB Mount 12A 2.5kV Quick Connect PT 400V ac - - - 28mm
RS Stock No. 161-6332
Mfr. Part No.V23092-A1012-A201
TWD356.50
Each (In a Tube of 20)
units
12 V dc - SPDT 848 Ω PCB Mount 6A - Through Hole - - - - - 28mm
RS Stock No. 680-3814
Mfr. Part No.RT334012
TWD114.00
Each
units
12 V dc - SPNO 360 Ω PCB Mount 16A - Through Hole RT1 - - - - 29mm
RS Stock No. 173-9229
Mfr. Part No.JTN1AS-PA-F-DC12V
BrandPanasonic
TWD101.20
Each (In a Box of 50)
units
12 V dc 800mW SPNO 180 Ω PCB Mount 30A 2.5kV rms Through Hole - 277V - - - 26.9mm
RS Stock No. 718-1904
Mfr. Part No.V23092A1024A202
TWD200.00
Each
units
24 V dc 170mW SPNO 3.39 kΩ PCB Mount 6A 4kV rms Through Hole SNR 400V ac - - - 28mm
RS Stock No. 235-5510
Mfr. Part No.T92P11A22-240 4-1393211-4
TWD618.00
Each
units
240 V ac - DPDT 3.8 kΩ Flange Mount 30A - Quick Connect T92 - - - - 68.58mm
RS Stock No. 136-5225
Mfr. Part No.G2R-1 24DC
BrandOmron
TWD122.00
Each (In a Tray of 100)
units
24 V dc - SPDT 1.1 kΩ PCB Mount 10A - Through Hole G2R-1 - - - - 29mm
RS Stock No. 164-9071
Mfr. Part No.V23092A1012A302
TWD163.90
Each (In a Tube of 20)
units
12 V dc 170mW SPNO 848 Ω PCB Mount 6A 4kV rms Through Hole - 400V ac - - - 28mm
RS Stock No. 811-3189
Mfr. Part No.JTN1AS-PA-F-DC12V
BrandPanasonic
TWD132.00
Each
units
12 V dc 800mW SPNO 180 Ω PCB Mount 30A 2.5kV rms Through Hole - 277V - - - 26.9mm
RS Stock No. 815-4900
Mfr. Part No.DS2E-S-DC12V
BrandPanasonic
TWD174.00
Each
units
12 V dc 200mW DPDT 720 Ω PCB Mount 2A 1.5kV rms PCB Pin - 250V 220V - - 20mm
RS Stock No. 290-1416
Mfr. Part No.2961105
TWD544.00
Each
units
24 V dc - SPDT 3.39 kΩ PCB Mount 10 mA - PCB Pin REL-MR- 24DC/21 - - Compact 1 28mm
RS Stock No. 533-0902
Mfr. Part No.PCJ-124D3M
TWD73.00
Each
units
24 V dc 200mW SPNO 2.88 kΩ PCB Mount 3A 4kV rms Through Hole PCJ 400V 30V - - 20.4mm
RS Stock No. 842-3767
Mfr. Part No.C5-A30DX/024VDC
BrandTurck
TWD946.00
Each
units
24 V dc 2.4W 3PDT 414 Ω Plug In - 4kV Plug In - 400V 220V - - 35mm
RS Stock No. 245-2116
Mfr. Part No.65.31.8.110.0000
BrandFinder
TWD629.00
Each
units
110 V ac 2.2W SPDT 1.6 kΩ Flange Mount 20A 4kV Quick Connect 65 Series 250V ac - - 1 62.2mm
RS Stock No. 699-5730
Mfr. Part No.ACTP112
BrandPanasonic
TWD106.00
Each
units
12 V dc 1W SPDT 144 Ω PCB Mount 30A 500V rms Through Hole - - 14V dc - - 17.4mm