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 21 - 40 of 4183 products
Results per page
Description 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. 359-6302
Mfr. Part No.V23134A1053C643 6-1393302-3
$18.94
Each
units
24 V dc 1.6W SPDT 332 Ω Plug In 40A 500V - Quick Connect F4 100V ac - - 1
RS Stock No. 718-1724
Mfr. Part No.RT424009
$3.79
Each
units
9 V dc 400mW DPDT 200 Ω PCB Mount 8A 5kV rms - Through Hole RT2 400V ac - - -
RS Stock No. 914-3982
Mfr. Part No.RY2-1012-26-5230
BrandRelpol
$14.49
Each
units
253 V ac 1.6W DPDT, SPDT 16.1 kΩ DIN Rail - 2.5kV ac - Faston - 440V 30V - 2
RS Stock No. 811-3163
Mfr. Part No.JW2ASN-DC24V
BrandPanasonic
$5.69
Each
units
24 V dc 530mW DPNO 1.1 kΩ PCB Mount 5A 5kV rms - - - 250V 30V - -
RS Stock No. 815-5054
Mfr. Part No.DSP1-DC24V-F
BrandPanasonic
$12.80
Each
units
24 V dc 300mW DPST 1.92 kΩ PCB Mount 5A 3kV rms - PCB Pin - 250V 125V - -
RS Stock No. 807-4539
Mfr. Part No.G2RL1EDC12BYOMB
BrandOmron
$4.73
Each
units
12 V dc 400mW SPDT 360 Ω PCB Mount 16A 5kV ac - PCB Pin G2RL 400V 300V - -
RS Stock No. 366-338
Mfr. Part No.G2R-2 24DC
BrandOmron
$7.67
Each
units
24 V dc - DPDT 1.1 kΩ PCB Mount 5A - - Through Hole G2R-2 - - - -
RS Stock No. 163-9321
Mfr. Part No.OJE-SS-105HM,000
$2.032
Each (In a Bag of 100)
units
5 V dc 450mW SPNO 55.6 Ω PCB Mount 10A 3kV rms - - - 277V 30V - 1
RS Stock No. 789-4669
Mfr. Part No.G2R1A24DC
BrandOmron
$5.62
Each
units
24 V dc 530mW SPST 1.1 kΩ PCB Mount 10A 5kV ac - Plug In G2R-1 380V 125V - -
RS Stock No. 124-4492
Mfr. Part No.OJE-SS-105HM,000
$2.716
Each (In a Pack of 5)
units
5 V dc 450mW SPNO 55.6 Ω PCB Mount 10A 3kV rms - PCB Pin OJE 277V 30V - 1
RS Stock No. 366-265
Mfr. Part No.G2R-1 24DC
BrandOmron
$8.48
Each
units
24 V dc - SPDT 1.1 kΩ PCB Mount 10A - - Through Hole G2R-1 - - - -
RS Stock No. 136-5225
Mfr. Part No.G2R-1 24DC
BrandOmron
$5.043
Each (In a Tray of 100)
units
24 V dc - SPDT 1.1 kΩ PCB Mount 10A - - Through Hole G2R-1 - - - -
RS Stock No. 534-5061
Mfr. Part No.46.52.9.024.0040
BrandFinder
$22.51
Each
units
24 V dc 500mW DPDT 1.2 kΩ Plug In 8A 6kV - Quick Connect 46 Series 250V ac 15V dc - 2
RS Stock No. 124-4471
Mfr. Part No.OJE-SH-105HM,000
$2.402
Each (In a Pack of 5)
units
5 V dc 450mW SPNO 55.6 Ω PCB Mount 10A 3kV rms - - OJE 277V 30V - 1
RS Stock No. 790-3350
Mfr. Part No.JS-12-K
BrandFujitsu
$6.98
Each
units
12 V dc 220mW SPDT 660 Ω PCB Mount 8A 10kV - PCB Pin - 400V ac 300V dc - -
RS Stock No. 488-2610
Mfr. Part No.MY2 24DC (S)
BrandOmron
$27.56
Each
units
24 V dc 900mW DPDT 636 Ω Plug In 10A 2kV - Plug In MY 250V ac 30V dc - 2
RS Stock No. 366-293
Mfr. Part No.G2R-1-E 12DC
BrandOmron
$8.44
Each
units
12 V dc - SPDT 275 Ω PCB Mount 16A - - Through Hole G2R-1 - - - -
RS Stock No. 476-804
BrandRS PRO
$5.52
Each
units
12 V dc 360mW SPNO 400 Ω PCB Mount 16A 2.5kV ac - Through Hole - 400V ac - - 1
RS Stock No. 351-639
Mfr. Part No.40.61.7.012.0000
BrandFinder
$10.15
Each
units
12 V dc 500mW SPDT 300 Ω PCB Mount 16A 6kV - Through Hole 40 Series 400V ac - - 1
RS Stock No. 163-9319
Mfr. Part No.OJE-SH-105HM,000
$1,693.77
1 Bag of 1000
Bag(s)
5 V dc 450mW SPNO 55.6 Ω PCB Mount 10A 3kV rms - - - 277V 30V - 1
Related Products
Lockable test buttonMechanical indicatorOperating temperature: -40°C to +70°CDimensions: ...
Description:
Lockable test buttonMechanical indicatorOperating temperature: -40°C to +70°CDimensions: H37.7mm x W27.7mm x D20.7mm.
Contact rating: 10A @ 250VacTest button and mechanical ...
Description:
Contact rating: 10A @ 250VacTest button and mechanical indicatorCoil To Contact rating of 2000 VContact Material: AgNi Operating Temperature Range of -40 to +70°CSockets available in section (stock no's. 454-7143 8-pin 454-7159 11-pin).
Indicator and a mechanical test button with two ...
Description:
Indicator and a mechanical test button with two positions, one of which is lockable.Can be fitted with series 8630 0024 dual function time switch (357-6948 or 357-6954).
Relays with 2 or 3 rest/work contacts (RT).Permanent ...
Description:
Relays with 2 or 3 rest/work contacts (RT).Permanent 16A current.Housing equipped with a lockable mechanical test button.Option to fit with time switch series 86 dual function or multi-function (357-6948 or 357-6954).Mounts on universal supports with panel attachment, assembly on DIN ...