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 1 - 20 of 5377 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. 329-806
Mfr. Part No.LY2 24AC
BrandOmron
HK$142.41
Each
units
24 V ac - DPDT 180 Ω Plug In 10A - Quick Connect LY2 - - - 2 28mm
RS Stock No. 351-588
Mfr. Part No.40.52.7.024.0000
BrandFinder
HK$53.64
Each
units
24 V dc 500mW DPDT 1.2 kΩ PCB Mount 8A 6kV Through Hole 40 Series 400V ac - - 2 29mm
RS Stock No. 366-265
Mfr. Part No.G2R-1 24DC
BrandOmron
HK$32.85
Each
units
24 V dc - SPDT 1.1 kΩ PCB Mount 10A - Through Hole G2R-1 - - - - 29mm
RS Stock No. 136-5225
Mfr. Part No.G2R-1 24DC
BrandOmron
HK$29.67
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. 290-1416
Mfr. Part No.2961105
HK$132.87
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. 394-9065
BrandRS PRO
HK$59.98
Each
units
12 V dc 900mW 4PDT 160 Ω Plug In 5A 2kV ac Through Hole - 250V ac 125V dc - 4 28mm
RS Stock No. 366-338
Mfr. Part No.G2R-2 24DC
BrandOmron
HK$43.27
Each
units
24 V dc - DPDT 1.1 kΩ PCB Mount 5A - Through Hole G2R-2 - - - - 29mm
RS Stock No. 348-756
BrandRS PRO
HK$80.15
Each
units
12 V dc 1.2W DPDT 120 Ω Plug In 10A 1.5kV ac Through Hole - 240V 30V - 2 35mm
RS Stock No. 794-8164
Mfr. Part No.MY4IN 100/110DC(S)
BrandOmron
HK$99.89
Each
units
100/110 V dc 900mW 4PDT 11.1 kΩ Plug In 5A 2kV ac Plug In MY4 250V 125V - - 36mm
RS Stock No. 348-762
BrandRS PRO
HK$85.95
Each
units
230 V ac 2W DPDT 8.2 kΩ Plug In 10A 1.5kV ac Through Hole - 240V 30V - 2 35mm
RS Stock No. 457-2846
Mfr. Part No.34.51.7.024.0010
BrandFinder
HK$66.47
Each
units
24 V dc 170mW SPDT 3.35 kΩ PCB Mount 6A 6kV PCB Pin 34 Series 400V ac - - 1 28mm
RS Stock No. 359-6302
Mfr. Part No.V23134A1053C643 6-1393302-3
HK$159.67
Each
units
24 V dc 1.6W SPDT 332 Ω Plug In 40A 500V Quick Connect F4 100V ac - - 1 26.2mm
RS Stock No. 358-8288
Mfr. Part No.2961121
HK$72.32
Each
units
24 V dc - SPDT 3.39 kΩ PCB Mount 1mA - PCB Pin REL-MR- 24DC/21AU - - - - 28mm
RS Stock No. 345-965
Mfr. Part No.C3-A30X / DC 24 V
BrandReleco
HK$162.81
Each
units
24 V dc - 3PDT 443 Ω Plug In 10A - Plug In MRC - - - - 35mm
RS Stock No. 353-887
Mfr. Part No.G2R-2-SN 24DC(S)
BrandOmron
HK$78.17
Each
units
24 V dc - DPDT 1.113 kΩ Plug In 5A - Plug In G2R-2 - - - 2 29mm
RS Stock No. 528-4017
Mfr. Part No.SF2D24
BrandPanasonic
HK$226.40
Each
units
24 V dc 500mW DPDT 1.152 kΩ PCB Mount 6A 2.5kV rms Through Hole - 440V ac 30V dc - - 53.3mm
RS Stock No. 353-821
Mfr. Part No.G2R-1-SN 12DC(S)
BrandOmron
HK$66.99
Each
units
12 V dc 530mW SPDT 275 Ω Plug In 10A 5kV ac Plug In G2R-1 380V ac 125V dc - 1 29mm
RS Stock No. 350-686
Mfr. Part No.60.13.9.024.0040
BrandFinder
HK$140.98
Each
units
24 V dc 1.3W 3PDT 445 Ω Plug In 10A - PCB Pin 60 Series 400V ac - - - 32.5mm
RS Stock No. 237-5356
Mfr. Part No.G5V-2-H1-24VDC
BrandOmron
HK$28.51
Each
units
24 V dc - DPDT 2.88 kΩ PCB Mount 1A - Through Hole G5V - - - 2 20.5mm
RS Stock No. 811-3189
Mfr. Part No.JTN1AS-PA-F-DC12V
BrandPanasonic
HK$35.49
Each
units
12 V dc 800mW SPNO 180 Ω PCB Mount 30A 2.5kV rms Through Hole - 277V - - - 26.9mm
Related Products
Precision metal film technologyPassivated range for superior humidity ...
Description:
Precision metal film technologyPassivated range for superior humidity performanceLoad life stability and humidity to 0.05%.
The MF series from KOA is a range ...
Description:
The MF series from KOA is a range of through hole precision resistors. Various resistance values are available for this series. Constructed with lead free terminations, MF through hole resistors are ideal for use in automatic placement machines.MFS variations offer ...
RC Metal Film Resistor Series has low TCRs ...
Description:
RC Metal Film Resistor Series has low TCRs over a wide resistance rangeResistance tolerance down to 0.05%Low noise and negligible voltage coefficientTemperature Coefficient of Resistance down to 5 ppm/°C.
Arcol MRA Precison Metal Film Resistors offer a ...
Description:
Arcol MRA Precison Metal Film Resistors offer a very low TCR of ±5ppm/ºCThe resistance values range from R1 to 10M and the precision tolerance is down to ±0.05%Maximum Operating Voltages vary from 200V to 500VMRA range now offers a maximum ...