Electronic Switches and Power Switches | RS Hong Kong
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    Micro Switches

    Electronic switches are fundamental components in electrical circuits, acting as the control points that enable or interrupt the flow of current. They are essential for powering devices, controlling functions, and ensuring safety in a wide range of applications.

    What Are Switches?

    Switches act as a bridge, either connecting or disconnecting the flow of electrons to turn a circuit on or off. They contain mechanical terminals that connect to metal contacts. When the terminal and contact are touching, the electric switch is closed, enabling current to pass through. Meanwhile, when the terminal and contact are not touching, the open switch prevents current from passing through the circuit.

    Switches are characterised by their poles and throws. Poles refer to the number of separate circuits the switch controls, while throws indicate the number of positions the switch can adopt (on, off, or alternative connections). The combinations of these are:

    • SPST (Single Pole Single Throw)
    • SPDT (Single Pole Double Throw)
    • DPST (Double Pole Single Throw)
    • DPST (Double Pole Double Throw)

    Different Types of Switches

    The type of control switch you use in your electrical application depends on the connections you wish to make within your circuit. Switches are often grouped by the way they are operated or by their application. Here are some electrical switch types:

    • Push button switches: These switches, also known as push switches, are actuated by pressing a button, commonly found in applications like doorbells, remote controls, and industrial control panels.
    • Toggle switches: With a lever that is flipped to open or close the circuit, toggle switches are often used in lighting controls, power supplies, and audio equipment.
    • Rocker switches: Also referred to as on-off switches, these switches operate with a rocking motion for applications like home appliances and automotives.
    • Rotary switches: Commonly found in variable speed fans, dimmers, and aircraft control panels, rotary switches use a rotating shaft to select different contact positions.
    • Key switches: These electromechanical switches require a key to operate, providing security and access control in applications like locks, ignition systems, and security panels.
    • Micro switches: Actuated by a small force, micro switches are small, sensitive switches that are often used in precision applications, such as when a door must be shut before the power to a device turns on.

    How to Choose the Right Switches

    Choosing the right switch involves evaluating several factors, including the electrical requirements, such as voltage and current rating, and the type of actuation needed. Other considerations include mounting style and environmental conditions. For example, if the switch will be used to monitor gas or liquid flow, a flow switch might be a good option.

    If you’re looking for a power switch company, RS Hong Kong offers a wide selection of quality switches to meet various needs so you can easily find the right switch for your application on our online store.

    How to Buy Power Switches from RS Hong Kong

    RS Hong Kong is a trusted power switch button supplier, sourcing supplies from leading brands in various industries, such as Schneider Electric, APEM, and Eaton. Conveniently browse our extensive catalogue and filter by various criteria to find the perfect switch for your needs on our online site.

    Aside from switches, we also stock a wide range of other electrical parts and tools. Whether you’re looking to buy a cartridge fuse or a multimeter, we have a comprehensive selection to meet your requirements. Need help choosing the right tools? Our information articles, such as our USB cables buyers guide, provide the advice you need to make your choice.

    How Delivery Works at RS Hong Kong

    RS Hong Kong understands how flexible and timely deliveries are crucial for business continuity. This is why we offer flexible delivery options for industrial electrical switches, including express and next-day deliveries, to ensure you receive your power switches promptly. For more information on delivery options, please visit our delivery information page.

    To further streamline your procurement process, you can also leverage our global delivery network and online ordering system to manage, track, and update your orders easily online. With our fast and reliable service, you can be assured of prompt support whenever you need it. Open an online account with us today to meet all your electric supply needs.

    1729 Products showing for Micro Switches

    Omron
    Hinge Lever
    Wire Lead
    1 mA
    SPST -NO
    IP67
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Panasonic
    Hinge Lever
    PCB
    100 mA @ 30 V dc
    SPDT-NO/NC
    -
    0.49 N
    -25°C
    +85°C
    -
    Gold Clad Silver Nickel Alloy
    -
    500000Operations
    0.049N
    -
    Omron
    Hinge Lever
    Right Angle PCB
    100 mA @ 30 V dc
    SPDT-NO/NC
    IP40
    0.25 N
    -25°C
    +65°C
    -
    Gold Alloy
    -
    1000000Operations
    0.02N
    -
    Panasonic
    Pin Plunger
    -
    50mA at 16V DC
    SPST
    IP67
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Honeywell
    Pin Plunger
    Solder
    100 mA
    SP-CO
    IP00
    0.59 N
    -
    +120°C
    -
    Gold Plated
    PBT
    -
    -
    -
    Panasonic
    Pin Plunger
    Wire Lead
    50mA at 16V DC
    1NC
    IP67
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Omron
    Hinge Lever
    Wire Lead
    1 mA
    SPST -NC
    IP67
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Panasonic
    Pin Plunger
    Solder
    50mA at 16V DC
    SPST
    IP67
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Omron
    Hinge Lever
    Quick Connect
    1 mA
    SPST
    IP67
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Omron
    Pin Plunger
    PCB Pin
    -
    SPDT
    IP67
    1.18 N
    -40°C
    +85°C
    -
    Gold Alloy
    -
    -
    0.15N
    250V ac
    TE Connectivity
    Lever
    PCB
    0.1A at 30VDC
    SPST
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    TE Connectivity
    Lever
    PCB
    0.1A at 30VDC
    SPST
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    TE Connectivity
    Lever
    Left Angle PCB
    0.5A at 30VDC
    SPST
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Omron
    Simulated Roller Lever
    Solder
    5 A @ 125 V ac
    SPDT-NO/NC
    IP40
    0.49 N
    -25°C
    +85°C
    -
    Silver
    -
    30000000Operations
    0.06N
    -
    Saia-Burgess
    Short Lever
    Tab
    16 A @ 250 V ac
    SPDT-NO/NC
    IP40
    1.4 N
    -40°C
    +85°C
    -
    Fine Silver; Silver Nickel
    Melamine Formaldehyd Thermosetting
    50000000Operations
    -
    -
    Omron
    Pin Plunger
    Through Hole
    100 mA
    SPDT
    IP40
    -
    -
    -
    -
    -
    -
    -
    -
    -
    CAMDENBOSS
    Short Lever
    Quick Connect, Solder
    5A
    1CO
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Omron
    Roller Lever
    Tab
    100 mA @ 30 V dc
    SPDT-NO/NC
    IP40
    0.49 N
    -25°C
    +85°C
    -
    Gold Alloy
    -
    30000000Operations
    0.06N
    -
    TE Connectivity
    Lever
    Left Angle PCB
    0.5A at 30VDC
    SPDT
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    TE Connectivity
    Simulated Roller Lever
    Quick Connect
    20A
    SPDT
    -
    175 g
    -40°C
    +125°C
    PBT
    -
    -
    10000000Operations
    20gf
    125/250V ac
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