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 247 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 Maximum Switching Current DC Terminal Type Series Maximum Switching Voltage AC Maximum Switching Voltage DC Application
RS Stock No. 884-1313
Mfr. Part No.RXM4AB2BD
kr 65,61
Each
Units
24 V dc 900mW 4PDT 650 Ω Plug In 8A - - - Plug In RXM 250V - -
RS Stock No. 884-1307
Mfr. Part No.RXM4AB1P7
kr 58,21
Each
Units
230 V ac 1.2W 4PDT 15 kΩ Plug In 8A - - - Plug In - 250V - -
RS Stock No. 852-6838
Mfr. Part No.RXG22P7
kr 147,06
Each
Units
230 V ac 820mW DPDT 23.5 kΩ Plug In 5A 5kV ac - - Plug In - 250V 30V -
RS Stock No. 852-6840
Mfr. Part No.RXG22BD
kr 147,06
Each
Units
24 V dc 530mW DPDT 1.1 kΩ Plug In 5A 5kV ac - - Plug In - 250V 30V -
RS Stock No. 884-1433
Mfr. Part No.RXM2AB1JD
kr 43,30
Each
Units
12 V dc 900mW DPDT 160 Ω Plug In 12A - - - Plug In - 250V - -
RS Stock No. 884-1540
Mfr. Part No.RXM4AB1JD
kr 58,21
Each
Units
12 V dc 900mW 4PDT 160 Ω Plug In 8A - - - Plug In - 250V - -
RS Stock No. 884-1304
Mfr. Part No.RXM4AB2P7
kr 65,61
Each
Units
230 V ac 1.2W 4PDT 15 kΩ Plug In 8A - - - Plug In - 250V - -
RS Stock No. 293-5172
Mfr. Part No.RHN412B
kr 308,05
Each
Units
24 V dc 1.6W 4PDT 43.4 Ω Plug In 5A 2.5kV - - Through Hole - - - -
RS Stock No. 884-1290
Mfr. Part No.RXM4AB1BD
kr 58,21
Each
Units
24 V dc 900mW 4PDT 650 Ω Plug In 8A - - - Plug In - 250V - -
RS Stock No. 814-8267
Mfr. Part No.9AS5D52-24
kr 33,46
Each
Units
24 V dc 2.8W SPDT 576 Ω Flange Mount 30A 2.5kV ac - - Quick Connect - 300V - -
RS Stock No. 922-1732
Mfr. Part No.RXG21JD
kr 67,00
Each
Units
12 V dc 530mW DPST-C/O 270 Ω Plug In - 5kV ac - - Plug In - 250V 30V -
RS Stock No. 922-1638
Mfr. Part No.RXG11JD
kr 56,00
Each
Units
12 V dc 530mW SPST-C/O 270 Ω Plug In - 5kV ac - - Plug In - 250V 30V -
RS Stock No. 884-1613
Mfr. Part No.RXM4GB1P7
kr 67,51
Each
Units
230 V ac 1.2W 4PDT 15 kΩ Plug In 3A - - - Plug In - 250V - -
RS Stock No. 852-6881
Mfr. Part No.RXG15BD
kr 90,50
Each
Units
24 V dc 530mW SPDT 1.1 kΩ Plug In 10A 5kV ac - - Plug In - 250V 30V -
RS Stock No. 922-1619
Mfr. Part No.RXG11BD
kr 56,00
Each
Units
24 V dc 530mW SPST-C/O 1.1 kΩ Plug In - 5kV ac - - Plug In - 250V 30V -
RS Stock No. 884-1414
Mfr. Part No.RXM2AB1BD
kr 43,30
Each
Units
24 V dc 900mW DPDT 650 Ω Plug In 12A - - - Plug In - 250V - -
RS Stock No. 852-6866
Mfr. Part No.RXG23JD
kr 142,53
Each
Units
12 V dc 530mW DPDT 270 Ω Plug In 5A 5kV ac - - Plug In - 250V 30V -
RS Stock No. 884-1525
Mfr. Part No.RXM4AB1E7
kr 58,21
Each
Units
48 V ac 1.2W 4PDT 710 Ω Plug In 8A - - - Plug In - 250V - -
RS Stock No. 884-1420
Mfr. Part No.RXM2AB1F7
kr 43,30
Each
Units
120 V ac 1.2W DPDT 3.63 kΩ Plug In 12A - - - Plug In - 250V - -
RS Stock No. 827-7062
Mfr. Part No.199X-13
kr 234,27
Each
Units
24 V dc 4W DPDT 290 Ω Panel Mount 40A 2.2kV ac - - Screw - 600V 28V -