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.

...
顯示內容 隱藏內容

篩選條件

正在檢視 1 - 20,共 231 項產品
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庫存編號 290-1416
製造零件編號2961105
HK$137.34
單位
24 V dc - SPDT 3.39 kΩ PCB Mount 10 mA - PCB Pin REL-MR- 24DC/21 - - Compact 1 28mm
RS庫存編號 358-8288
製造零件編號2961121
HK$146.50
單位
24 V dc - SPDT 3.39 kΩ PCB Mount 1mA - PCB Pin REL-MR- 24DC/21AU - - - - 28mm
RS庫存編號 508-0023
製造零件編號2961192
HK$77.87
單位
24 V dc - DPDT 1.44 kΩ PCB Mount 8A - Through Hole REL-MR- 24DC/21-21 - - - - 29mm
RS庫存編號 857-1383
製造零件編號2903661
HK$504.28
毎盒:10 個
Box(es)
48 V dc - DPDT - Plug In - - Plug In REL-IR2/LDP- 48DC/2X21 - - - - 21.2mm
RS庫存編號 508-0045
製造零件編號2834274
HK$93.58
單位
24 V dc - 3PDT 430 Ω Plug In 10A - Through Hole REL-OR- 24DC/3X21 250V ac 250V dc - - 52.5mm
RS庫存編號 508-0449
製造零件編號2834300
HK$202.37
單位
230 V ac - 3PDT 6.17 kΩ Plug In 10A - Through Hole REL-OR-230AC/3X21 250V ac 250V dc - - 52.5mm
RS庫存編號 308-1311
製造零件編號2942153
HK$195.97
單位
24 V dc - SPDT 1.143 kΩ DIN Rail - - Screw EMG REL - - - - 75mm
RS庫存編號 507-9972
製造零件編號2961312
HK$68.71
單位
24 V dc - SPDT 1.44 kΩ PCB Mount 16A - Through Hole REL-MR- 24DC/21HC 250V ac 250V dc - - 12.7mm
RS庫存編號 794-3771
製造零件編號2903370
HK$94.38
單位
24 V dc 170mW SPDT 3.388 kΩ DIN Rail 6A - Plug In RIF-0-RPT-24DC/21 250V ac 250V dc - - 6.2mm
RS庫存編號 508-0067
製造零件編號2834232
HK$76.30
單位
24 V dc - DPDT 430 Ω Plug In 10A - Through Hole REL-OR- 24DC/2X21 AU 250V ac 250V dc - - 52.5mm
RS庫存編號 794-3755
製造零件編號2903342
HK$85.66
單位
24 V dc 400mW SPDT 1.44 kΩ DIN Rail 11A 6kV Plug In RIF-1-RPT-LDP-24DC/1X21 250V ac 250V dc - - 16mm
RS庫存編號 794-3759
製造零件編號2903359
HK$69.46
單位
24 V dc 170mW SPNO 3.388 kΩ DIN Rail 50mA - Plug In RIF-0-RPT-24DC/ 1AU 30V ac 36V dc - - 6.2mm
RS庫存編號 794-3806
製造零件編號2903669
HK$74.70
單位
12 V dc 36mW 4PDT 160 Ω PCB Mount 50mA - Plug In REL-IR4/LDP- 12DC/4X21AU 30V ac 36V dc - - 21.2mm
RS庫存編號 308-1333
製造零件編號2940391
HK$295.50
單位
24 V dc - DPDT - DIN Rail - - Screw EMG REL - - - - 75mm
RS庫存編號 794-3812
製造零件編號2903677
HK$59.14
單位
24 V dc 77mW 4PDT 640 Ω PCB Mount 16A - Plug In REL-IR4/LDP- 24DC/4X21 250V ac 250V dc - - 21.2mm
RS庫存編號 794-3715
製造零件編號2903331
HK$120.73
單位
230 V ac - DPDT 32.5 kΩ DIN Rail 8A - Plug In RIF-1-RPT-LV-230AC/2X21 250V ac 250V dc - - 16mm
RS庫存編號 794-3721
製造零件編號2903334
HK$97.12
單位
24 V dc 400mW DPDT 1.44 kΩ DIN Rail 2A - Plug In RIF-1-RPT-LDP-24DC/2X21 250V ac 250V dc - - 16mm
RS庫存編號 666-7031
製造零件編號2981363
HK$264.77
單位
24 V dc - DPDT - - - - Screw PSR-SCF- 24UC/URM/2X21 - - - - 75mm
RS庫存編號 794-3761
製造零件編號2903361
HK$77.70
單位
24 V dc 170mW SPNO 3.388 kΩ DIN Rail 6A - Plug In RIF-0-RPT-24DC/1 250V ac 250V dc - - 6.2mm
RS庫存編號 794-3774
製造零件編號2903368
HK$89.69
單位
24 V dc 170mW SPDT 3.388 kΩ DIN Rail 50mA - Plug In RIF-0-RPT-24DC/21AU 30V ac 36V dc - - 6.2mm