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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.

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Part Details Brand Stock Coil Voltage Coil Power Switching Current Coil Resistance Isolation Coil To Contact Contact Configuration Mounting Type Switching Current Terminal Type Number of Poles Application Maximum Switching Current AC Maximum Switching Current DC Maximum Switching Voltage AC Maximum Switching Voltage DC Dimensions Length Depth Height Series Maximum Switching Power AC Standards Met Maximum Switching Power DC Operating Temperature Range Life Contact Material Maximum Operating Temperature Minimum Operating Temperature Special Features
Omron D2F SPDT Non-Latching Relay PCB Mount, 5A
  • € 0.88
  • Each (In a Pack of 1000)
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Omron 1000 - - 5A - - SPDT PCB Mount 5A PCB Pin 1 - 5 A - 250V - - 12.8mm 5.8mm 10mm D2F - - - - - - - - -
Omron D2F SPDT Non-Latching Relay PCB Mount, 5A
  • € 0.83
  • Each (In a Pack of 1000)
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Omron 1000 - - 5A - - SPDT PCB Mount 5A PCB Pin 1 - 5 A - 250V - - 12.7mm 5.8mm 5.5mm D2F - - - - - - - - -
Omron D2F SPDT Non-Latching Relay PCB Mount, 5A Omron 750 - - 5A - - SPDT PCB Mount 5A PCB Pin 1 - 5 A - 250V - - 12.7mm 5.8mm 13mm D2F - - - - - - - - -
Finder 40 DPDT Non-Latching Relay PCB Mount, 24V dc Coil, 8A Finder 113 24V dc 650 8A 900 Ω 6kV DPDT PCB Mount 8A Plug In 2 - - - 400V - - 29mm 12.4 25mm 40 - - - - - - - - -
Omron G6DN SPNO Non-Latching Relay PCB Mount, 12V dc Coil, 5A Omron 100 12V dc 110mW 5A 1.309 kΩ - SPNO PCB Mount 5A PCB Pin 1 - 5 A 5 A 277V 125V - 20mm 5.08mm 12.5mm G6DN - - 110 mW - - - - - -
Omron G6DN SPNO Non-Latching Relay PCB Mount, 5V dc Coil, 5A Omron 100 5V dc 110mW 5A 227 Ω - SPNO PCB Mount 5A PCB Pin 1 - 5 A 5 A 277V 125V - 20mm 5.08mm 12.5mm G6DN - - 110 mW - - - - - -
TE Connectivity RM 8 SPDT Non-Latching Relay, 24V dc Coil, 25A TE Connectivity 89 24V dc 1.2W 25A 475 Ω - SPDT - 25A Quick Connect 2 - - - 400V - - 38.5mm 35.5mm 73.5mm RM 8 6 kVA - - - - - - - -
Schneider Electric RSL SPDT Non-Latching Relay, 60V dc Coil, 6A Schneider Electric 77 60V dc 170mW 6A 20.5 kΩ 4kV ac SPDT - 6A Screw - - 6 A 6 A 277V 230V - 6.2mm 78.7mm 96mm RSL 150 W - 1500 VA - - - - - -
Finder 40 DPDT Non-Latching Relay PCB Mount, 24V dc Coil, 10A Finder 76 24V dc 650mW 10A 900 Ω 6kV DPDT PCB Mount 10A Plug In 2 - - - 400V - - 29mm 12.4mm 25mm 40 - - - - - - - - -
Finder 40 DPDT Non-Latching Relay PCB Mount, 12V dc Coil, 10A Finder 59 12V dc 650mW 10A 200 Ω 6kV DPDT PCB Mount 10A Plug In 2 - - - 400V - - 29mm 12.4mm 25mm 40 - - - - - - - - -
Finder 55 Series 4PDT Non-Latching Relay PCB Mount, 24V dc Coil, 7A Finder 52 24V dc 1W 7A 600 Ω 4kV 4PDT PCB Mount 7A PCB Pin 4 - 7 A 7 A 250/250V - - 27.7mm 20.7mm 37.2mm 55 Series 1.5 VA - 1 W - - - - - -
Omron G6QE SPNO Non-Latching Relay PCB Mount, 24V dc Coil, 36A Omron 50 24V dc 1.4W 36A 411.4 Ω - SPNO PCB Mount 36A PCB Pin 1 - 36 A - 277V - - 30.5mm 16mm 20.5mm G6QE - - 1400 mW - - - - - -
Omron G6QE SPNO Non-Latching Relay PCB Mount, 5V dc Coil, 36A Omron 50 5V dc 1.4W 36A 17.9 Ω - SPNO PCB Mount 36A PCB Pin 1 - 36 A - 277V - - 30.5mm 16mm 20.5mm G6QE - - 1400 mW - - - - - -
Schneider Electric RPM DPDT Non-Latching Relay, 230V ac Coil, 15 A @ 250 V ac, 15 A @ 28 V dc Schneider Electric 46 230V ac 1.1W 15 A @ 250 V ac, 15 A @ 28 V dc 16.27 kΩ - DPDT - 15 A @ 250 V ac, 15 A @ 28 V dc - - - 15 A 15 A 250V ac 28V dc - 21mm 47mm 27mm RPM 3.75 kVA - - - - - - - -
Schneider Electric RPM SPDT Non-Latching Relay, 24V dc Coil, 15 A @ 250 V ac, 15 A @ 28 V dc Schneider Electric 42 24V dc 1.1W 15 A @ 250 V ac, 15 A @ 28 V dc 450 Ω - SPDT - 15 A @ 250 V ac, 15 A @ 28 V dc - - - 15 A 15 A 250V ac 28V dc - 14mm 43mm 27mm RPM 3.75 kVA - - - - - - - -
Schneider Electric RPF DPDT Non-Latching Relay DIN Rail, Panel Mount, 12V dc Coil, 25 A @ 28 V dc, 30 A @ 250 V ac Schneider Electric 38 12V dc 1.7W 25 A @ 28 V dc, 30 A @ 250 V ac 86 Ω - DPDT DIN Rail, Panel Mount 25 A @ 28 V dc, 30 A @ 250 V ac - - - 30 A 25 A 250V ac 28V dc - 33.7mm 30mm 68.5mm RPF 7.5 kVA - - - - - - - -
Finder 40 DPDT Non-Latching Relay PCB Mount, 12V dc Coil, 8A Finder 35 12V dc 650mW 8A 200 Ω 6kV DPDT PCB Mount 8A Plug In 2 - - - 400V - - 29mm 12.4mm 25mm 40 - - - - - - - - -
Wago 857 SPDT Relay Interface Module Plug In, 12 V dc Coil, 6A Wago 32 12 V dc 1500 W 6A - - SPDT Plug In 6A PCB Pin - - 3 A 2 A 250 V 30 V - 5 mm 28 mm 15 mm 857 1.5 kVA - - - - - - - -
Finder 30 Series DPDT Non-Latching Relay PCB Mount, 12V dc Coil, 2A Finder 30 12V dc 200mW 2A 720 Ω 1.5kV DPDT PCB Mount 2A PCB Pin 2 - 2 A 2 A 125/250V - - 20.3mm 10.1mm 11.4mm 30 Series - - 0.2 W - - - - - -
Omron G7Z Non-Latching Relay Chassis Mount, 24V dc Coil, 40 (AC) A, 5 (DC) A
  • RS Stock No. 178-8265
  • Brand Omron
  • Mfr. Part No. G7Z-4A-02Z-R 24VDC
Omron 27 24V dc 3.7W 40 (AC) A, 5 (DC) A - - - Chassis Mount 40 (AC) A, 5 (DC) A Crimp 4 - 40 A 5 A 480V 125V - 45mm 92.2mm 62mm G7Z 11000 (NC/Resistive Load) VA, 17600 (NO/Resistive Load) VA, 4400 (NC/Induction Load) VA, 9680 (NO/Induction Load) VA - 550 W - - - - - -
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