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 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. 790-3303
Mfr. Part No.A-5W-K
BrandFujitsu
TWD137.00
Each
units
5 V dc 140mW DPDT 178 Ω PCB Mount 2A 1.5kV PCB Pin - 125V ac 110V dc - - 14mm
RS Stock No. 811-3163
Mfr. Part No.JW2ASN-DC24V
BrandPanasonic
TWD126.00
Each
units
24 V dc 530mW DPNO 1.1 kΩ PCB Mount 5A 5kV rms - - 250V 30V - - 28.6mm
RS Stock No. 136-1702
Mfr. Part No.RP421024
TWD296.10
Each (In a Box of 20)
units
24 V dc - DPDT 1.1 kΩ PCB Mount 8A - Through Hole - - - - - 29mm
RS Stock No. 492-6625
Mfr. Part No.32.21.7.005.2000
BrandFinder
TWD139.00
Each
units
5 V dc 200mW SPDT 125 Ω PCB Mount 6A - Through Hole 32 Series 250V ac - - 1 20mm
RS Stock No. 168-0672
Mfr. Part No.8-1419111-3
TWD7,786.00
1 Tube of 25
Tube(s)
110 V dc 750mW 4PDT 16.133 kΩ Plug In 6A 2.5kV rms Plug In - 240V - - 4 28mm
RS Stock No. 135-5007
Mfr. Part No.IM03TS
TWD64.90
Each (In a Tube of 1000)
units
5 V dc - DPDT 178 Ω PCB Mount 2A - Through Hole - - - - - 10mm
RS Stock No. 172-0064
Mfr. Part No.G2R-1-E48VDC
BrandOmron
TWD146.00
Each
units
48 V dc - SPDT 4.17 kΩ PCB Mount 16A - Through Hole G2R - - - 1 29mm
RS Stock No. 350-686
Mfr. Part No.60.13.9.024.0040
BrandFinder
TWD598.00
Each
units
24 V dc 1.3W 3PDT 445 Ω Plug In 10A - PCB Pin 60 Series 400V ac - - - 32.5mm
RS Stock No. 535-935
Mfr. Part No.ST112F
BrandPanasonic
TWD429.00
Each
units
12 V dc 240mW DPST 600 Ω PCB Mount 8 A 3.75kV rms Through Hole - 380V ac 250V dc Power - 31mm
RS Stock No. 376-600
Mfr. Part No.G6E-134P-US 12DC
BrandOmron
TWD196.00
Each
units
12 V dc - SPDT 720 Ω PCB Mount 3A - Through Hole G6E - - - - 16mm
RS Stock No. 394-9100
BrandRS PRO
TWD240.00
Each
units
120 V ac 1.1W 4PDT 4.43 kΩ Plug In 5A 2kV ac Through Hole - 250V ac 125V dc - 4 28mm
RS Stock No. 135-4652
Mfr. Part No.V23026A1004B201
TWD211.10
Each (In a Tube of 40)
units
24 V dc - SPDT 4.5 kΩ PCB Mount - - Through Hole - - - - - 13mm
RS Stock No. 366-300
Mfr. Part No.G2R-1-E 24DC
BrandOmron
TWD179.00
Each
units
24 V dc - SPDT 1.1 kΩ PCB Mount 16A - Through Hole G2R-1 - - - - 29mm
RS Stock No. 173-8139
Mfr. Part No.ST112F
BrandPanasonic
TWD334.70
Each (In a Box of 50)
units
12 V dc 240mW - 600 PCB Mount 8A 3.75kV rms Through Hole - 380V ac 250V dc - - 31mm
RS Stock No. 172-0777
Mfr. Part No.V23026A1004B201
TWD253.00
Each
units
24 V dc - SPDT 4.5 kΩ PCB Mount - - Through Hole P1 - - - - 13mm
RS Stock No. 789-4669
Mfr. Part No.G2R1A24DC
BrandOmron
TWD148.00
Each
units
24 V dc 530mW SPST 1.1 kΩ PCB Mount 10A 5kV ac Plug In G2R-1 380V 125V - - 29mm
RS Stock No. 422-7029
Mfr. Part No.IM03TS 1-1462037-8
TWD111.00
Each
units
5 V dc - DPDT 178 Ω PCB Mount 2A - Through Hole IM - - - - 10mm
RS Stock No. 168-0613
Mfr. Part No.V23092A1024A202
TWD165,526.00
1 Reel of 1000
Reel(s)
24 V dc 170mW SPNO 3.39 kΩ PCB Mount 6A 4kV rms Through Hole - 400V ac - - - 28mm
RS Stock No. 434-1563
Mfr. Part No.G5Q1A12DC
BrandOmron
TWD71.00
Each
units
12 V dc - SPNO 720 Ω PCB Mount 10A - Through Hole G5Q - - - - 20.3mm
RS Stock No. 164-9035
Mfr. Part No.RT334012
TWD74.30
Each (In a Box of 500)
units
12 V dc - SPNO 360 Ω PCB Mount 16A - Through Hole - - - - - 29mm