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 101 - 120 of 4962 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. 800-4491
BrandRS PRO
MYR9.99
Each
units
48V dc 530mW DPDT 4.17 kΩ PCB Mount 10A 5kV ac Through Hole - 250V ac 30V dc - 2 29mm
RS Stock No. 888-6896
BrandRS PRO
MYR50.416
Each (In a Pack of 5)
units
24V ac/dc - SPDT - DIN Rail 6A - Push In - 250V 250V - 1 6.2mm
RS Stock No. 450-0318
BrandRS PRO
MYR37.38
Each
units
12V dc 900mW DPDT 160 Ω Plug In 10A 1.5kV ac PCB Pin - 240V ac 30V dc - 2 28mm
RS Stock No. 819-8984
BrandRS PRO
MYR185.17
Each
units
12V dc 140mW DPDT 1.029 kΩ PCB Mount 2A 1.8kV rms PCB Pin - 250V 220V - 2 16mm
RS Stock No. 888-6821
BrandRS PRO
MYR61.394
Each (In a Pack of 5)
units
115V ac/dc - SPDT - DIN Rail 6A - Screw - 250V 250V - 1 6.2mm
RS Stock No. 450-0295
BrandRS PRO
MYR39.85
Each
units
24V dc 900mW SPDT 750 Ω PCB Mount 15A 1.5kV ac PCB Pin - 240V ac 28V dc - 1 27mm
RS Stock No. 869-7485
BrandRS PRO
MYR313.70
Each
units
12V dc - 4PDT - PCB Mount 2A - PCB Pin - 250V 220V - 4 35.56mm
RS Stock No. 193-5865
BrandRS PRO
MYR273.05
Each
units
36V 400mW 4PDT 144 Ω PCB Mount 2A - PCB Pin - 250V 220V - 4 35.56mm
RS Stock No. 888-6811
BrandRS PRO
MYR52.572
Each (In a Pack of 5)
units
24V ac/dc - SPDT - DIN Rail 6A - Screw - 250V 250V - 1 6.2mm
RS Stock No. 144-1602
BrandRS PRO
MYR37.24
Each
units
24V dc 530mW DPDT 1.1 kΩ Plug In 8A 5kV ac PCB Pin RFT 250V 30V - 2 29mm
RS Stock No. 800-4530
BrandRS PRO
MYR22.38
Each
units
5V dc 900mW SPNO 27.8 Ω PCB Mount 25A 4.5kV ac Through Hole - 250V ac - - 1 30.5mm
RS Stock No. 121-7808
BrandRS PRO
MYR41.84
Each
units
110V ac 480W SPDT - Plug In 16A 2kV ac Plug In - 250V ac 30V dc - 1 28mm
RS Stock No. 800-4463
BrandRS PRO
MYR16.45
Each
units
24V ac 750mW DPDT 350 Ω PCB Mount 8A 5kV ac Through Hole - 440V ac 300V dc - 2 29mm
RS Stock No. 121-7817
BrandRS PRO
MYR58.76
Each
units
24V ac 300W 3PDT - Plug In 10A 2kV ac Plug In - 250V ac 30V dc - 3 31.5mm
RS Stock No. 193-5864
BrandRS PRO
MYR217.144
Each (In a Pack of 100)
units
36V 400mW 4PDT 144 Ω PCB Mount 2A - PCB Pin - 250V 220V - 4 35.56mm
RS Stock No. 121-7830
BrandRS PRO
MYR57.37
Each
units
24V ac 300W DPDT - Plug In 10A 2.5kV ac Plug In - 250V ac 30V dc - 2 36mm
RS Stock No. 193-5849
BrandRS PRO
MYR213.27
Each
units
- - - - - - - - - - - - - -
RS Stock No. 121-7807
BrandRS PRO
MYR41.84
Each
units
24V ac 480W SPDT - Plug In 16A 2kV ac Plug In - 250V ac 30V dc - 1 28mm
RS Stock No. 476-589
BrandRS PRO
MYR21.78
Each
units
12V dc 290mW SPDT 620 Ω PCB Mount 10A 5kV ac Through Hole - 440V ac 125V dc - 1 28.5mm
RS Stock No. 819-8988
BrandRS PRO
MYR149.15
Each
units
24V 200mW DPDT 2.88 kΩ PCB Mount 2A 1.8kV rms PCB Pin - 250V 220V - 2 16mm
Related Products
Introducing the Panasonic DW (ADW1) Series of Polarised ...
Description:
Introducing the Panasonic DW (ADW1) Series of Polarised Power Relays. The relays feature up to 16 A @ 277 V ac switching capacity. These relays are of compact size, can run at a high operating power and are highly reliable ...
These compact latching relays from Panasonic were developed ...
Description:
These compact latching relays from Panasonic were developed primarilly for digital, electronic smart meters. To save energy a latching relay is necessary. To save current consumption in stand-by modes they are also ideal for use in white goods such as ...
The Releco by Turck C5 series of Relays ...
Description:
The Releco by Turck C5 series of Relays are general purpose plug-in relays that offer superior reliability combined with time-saving standard features that result in simplified testing and minimum down time.The C5 series has latching and non-latching options available. Available ...
RPII series PCB power relays with 500mW coil ...
Description:
RPII series PCB power relays with 500mW coil power available with SPST, SPDT and DPDT contact configurations. Part numbers RP3-XXXX and RP4-XXXX are flux proof. Part numbers RP7-XXXX and RP8-XXXX are wash tight. Coil power: 500 mWOperating temperature range: -40 ...