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 61 - 80 of 4931 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. 457-2846
Mfr. Part No.34.51.7.024.0010
BrandFinder
PHP606.48
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. 237-5328
Mfr. Part No.G5V-2-H1 5DC
BrandOmron
PHP333.75
Each
units
5 V dc - DPDT 166.7 Ω PCB Mount 2A - Through Hole G5V - - - 2 20.5mm
RS Stock No. 376-442
Mfr. Part No.C9-A41X / DC 24 V
BrandReleco
PHP810.70
Each
units
24 V dc - 4PDT 594 Ω Plug In 5A - PCB Pin C9 - - - - 28mm
RS Stock No. 376-802
Mfr. Part No.40.52.8.024.0000
BrandFinder
PHP561.32
Each
units
24 V ac 1.2W DPDT 320 Ω PCB Mount 8A 6kV Through Hole 40 Series 400V ac - - 2 29mm
RS Stock No. 329-799
Mfr. Part No.LY2 24DC
BrandOmron
PHP1,123.05
Each
units
24 V dc - DPDT 650 Ω Plug In 10A - Quick Connect LY2 - - - 2 28mm
RS Stock No. 189-3229
Mfr. Part No.55.34.9.048.0040
BrandFinder
PHP954.20
Each
units
48 V dc 1W 4PDT 2.4 kΩ Plug In 7A 4kV Quick Connect 55 Series 400V ac - - 4 27.7mm
RS Stock No. 178-2012
Mfr. Part No.CB112
BrandPanasonic
PHP332.28
Each
units
12 V dc 1.4W SPDT 103 Ω Plug In 40A 500V Quick Connect CB - - - - 26mm
RS Stock No. 758-6898
Mfr. Part No.LZX:PT270024
BrandSiemens
PHP522.65
Each
units
24 V dc - DPDT - Plug In 8A - Screw LZX 230V 24V - - 22.5mm
RS Stock No. 859-3254
Mfr. Part No.RMIA45230AC
PHP1,229.83
Each
units
230 V ac 1.2W 4PDT 11 kΩ Plug In 5A 3.75kV ac PCB Pin RCP 250V 30V - - 28mm
RS Stock No. 348-784
BrandRS PRO
PHP550.45
Each
units
24 V dc 1.2W DPDT 478 Ω Plug In 10A 1.5kV ac Through Hole - 240V 30V - 2 35mm
RS Stock No. 827-8131
Mfr. Part No.MKS2PI AC240
BrandOmron
PHP858.70
Each
units
240 V ac 2.7W DPDT 4.48 kΩ Plug In 10A 2.5kV ac Plug In MKS 250V 250V - - 34.5mm
RS Stock No. 488-1869
Mfr. Part No.MY4N-D2 24DC(S)
BrandOmron
PHP1,167.71
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. 329-991
Mfr. Part No.G7L-2A-T 200/240AC
BrandOmron
PHP1,122.24
Each
units
240 V ac - DPNO - Panel Mount 25A - Quick Connect G7L - - - 2 52.5mm
RS Stock No. 536-912
Mfr. Part No.MKS3PI-5 DC24
BrandOmron
PHP999.71
Each
units
24 V dc - 3PDT 430 Ω Plug In 10A - Plug In MKS 250V ac 250V dc - 3 34.5mm
RS Stock No. 376-830
Mfr. Part No.40.31.8.024.0000
BrandFinder
PHP296.42
Each
units
24 V ac 1.2W SPDT 320 Ω PCB Mount 10A 6kV Through Hole 40 Series 400V ac - - 1 29mm
RS Stock No. 256-0655
Mfr. Part No.V23079A1003B301
PHP163.10
Each
units
12 V dc - DPDT 1.029 kΩ PCB Mount 2A - Through Hole Axicom P2 - - - 2 14.5mm
RS Stock No. 683-9362
Mfr. Part No.G6C-2114P-US 24DC
BrandOmron
PHP446.25
Each
units
24 V dc 200mW DPST 2.88 kΩ PCB Mount 8A 2kV ac Through Hole G6C - - - - 20mm
RS Stock No. 173-8192
Mfr. Part No.DSP2A-DC24V
BrandPanasonic
PHP335.454
Each (In a Box of 50)
units
24 V dc 300mW DPNO 1.92 k PCB Mount 5A 3kV rms Through Hole - - - - - 20.2mm
RS Stock No. 135-4741
Mfr. Part No.V23079A1003B301
PHP155.404
Each (In a Tube of 50)
units
12 V dc - DPDT 1.029 kΩ PCB Mount 5A - Through Hole Axicom P2 - - - 2 14.5mm
RS Stock No. 884-1474
Mfr. Part No.RXM3AB1BD
PHP496.99
Each
units
24 V dc 900mW 3PDT 650 Ω Plug In 10A - Plug In - 250V - - 3 21mm