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    Modular Contactors

    230V AC Coil

    230V AC Coil (78)

    24V AC Coil

    24V AC Coil (12)

    24V DC Coil

    24V DC Coil (11)

    12V DC Coil

    12V DC Coil (3)

    Switchtec SMC-4020-240 40A Contactor

    Switchtec SMC-4020-240 40A Contactor – 2NO 240V AC Coil
    Delivery usually within 1 - 3 working days *
    SKU: SMC-4020-240
    £21.20
    Switchtec SMC-4040-240 40A Contactor

    Switchtec SMC-4040-240 40A Contactor – 4NO 240V AC Coil
    Delivery usually within 1 - 3 working days *
    SKU: SMC-4040-240
    £29.51
    Switchtec SMC-6340-240 63A Contactor

    Switchtec SMC-6340-240 63A Contactor – 4NO 240V AC Coil
    Delivery usually within 1 - 3 working days *
    SKU: SMC-6340-240
    £29.51
    Switchtec SMC-10020-240 100A Contactor

    Switchtec SMC-10020-240 100A Contactor – 2NO 240V AC Coil
    Delivery usually within 1 - 3 working days *
    SKU: SMC-10020-240
    £34.55
    Switchtec SMC-10040-240 100A Contactor

    Switchtec SMC-10040-240 100A Contactor – 4NO 240V AC Coil
    Delivery usually within 1 - 3 working days *
    SKU: SMC-10040-240
    £68.76
    Live Electrical 24V AC 20A modular contactor

    Live Electrical | MLAC2P20/24 | 24V AC 20A 2 Pole NO | Modular Contactor
    Delivery usually within 1 - 3 working days *
    SKU: MLAC2P20/24
    £7.50
    Live Electrical | MLAC2P25/24 | 24V AC 25A 2 Pole NO | Modular Contactor

    Live Electrical | MLAC2P25/24 | 24V AC 25A 2 Pole NO | Modular Contactor
    Delivery usually within 1 - 3 working days *
    SKU: MLAC2P25/24
    £7.50
    Deligo MC202NCP1 2NC 20A 230V AC Modular Contactor

    Deligo | MC202NCP1 | 2NC 20A AC1 230V AC | Modular Contactor
    Delivery usually within 1 - 3 working days *
    SKU: MC202NCP1
    £10.43
    Deligo MC202P1 2NO 20A 230V AC Modular Contactor

    Deligo | MC202P1 | 2NO 20A AC1 230V AC | Modular Contactor
    Delivery usually within 1 - 3 working days *
    SKU: MC202P1
    £9.06
    Deligo MC252NCP1 2NC 25A 230V AC Modular Contactor

    Deligo | MC252NCP1 | 2NC 25A AC1 230V AC | Modular Contactor
    Delivery usually within 1 - 3 working days *
    SKU: MC252NCP1
    £11.20
    Deligo MC252P1 2NO 25A 230V AC Modular Contactor

    Deligo | MC252P1 | 2NO 25A AC1 230V AC | Modular Contactor
    Delivery usually within 1 - 3 working days *
    SKU: MC252P1
    £11.33
    Deligo MC254NCP2 4NC 25A 230V AC Modular Contactor

    Deligo | MC254NCP2 | 4NC 25A AC1 230V AC | Modular Contactor
    Delivery usually within 1 - 3 working days *
    SKU: MC254NCP2
    £21.54
    Deligo MC254P2 4NO 25A 230V AC Modular Contactor

    Deligo | MC254P2 | 4NO 25A AC1 230V AC | Modular Contactor
    Delivery usually within 1 - 3 working days *
    SKU: MC254P2
    £18.73
    Deligo MC404NCP3 4NC 40A 230V AC Modular Contactor

    Deligo | MC404NCP3 | 4NC 40A AC1 230V AC | Modular Contactor
    Delivery usually within 1 - 3 working days *
    SKU: MC404NCP3
    £31.08
    Deligo MC404P3 4NO 63A 230V AC Modular Contactor

    Deligo | MC404P3 | 4NO 63A AC1 230V AC | Modular Contactor
    Delivery usually within 1 - 3 working days *
    SKU: MC404P3
    £27.03
    Deligo MC634P3 4NO 63A 230V AC Modular Contactor

    Deligo | MC634P3 | 4NO 63A AC1 230V AC | Modular Contactor
    Delivery usually within 1 - 3 working days *
    SKU: MC634P3
    £31.32
    How Contactors Work – Technical Overview

    Contactors operate through electromagnetic principles, enabling precise control of electrical power. Here’s how they function:

    1. Electromagnetic Coil Activation:
      When a control circuit energizes the coil, it creates a magnetic field. As a result, this field pulls the armature (a moving component) toward the coil.
    2. Contact Operation:
      The armature’s movement closes the main contacts (for NO configurations) or opens them (for NC configurations). This process allows the power circuit to switch on or off effectively.
    3. Load Switching:
      The contacts, made from durable materials like silver alloys, handle high electrical loads without excessive wear. To prevent damage, many contactors include arc suppression systems, which protect the contacts and improve durability.
    4. Spring Mechanism Reset:
      Once the coil is de-energised, a spring pushes the armature back into its default position. This action ensures that the contacts return to their original state.
    5. Auxiliary Contacts:
      Auxiliary contacts provide additional functionality, such as signaling or feedback to control systems. These features allow seamless integration with automation setups.
    Advanced Features of Contactors
    • High Switching Capacity: They can handle both resistive and inductive loads effectively.
    • Modular Design: Their compact structure allows easy installation on DIN rails.
    • Silent Operation: Low-noise options make them suitable for residential and office use.
    • Thermal Protection: They are often paired with overload relays to safeguard circuits from overheating.
    • Long-Lasting Performance: Built to perform millions of operations under rated conditions.
    Usage in Electrical Installations

    Contactors are essential for controlling:

    • Lighting Systems: Manage high-wattage lights in commercial and residential setups.
    • Heating and Ventilation: Optimise the operation of heating elements and fans.
    • Motors and Pumps: Enable efficient control of motors and reverse operations.
    • Automation Systems: Work seamlessly with sensors and building management systems.
    • Energy Management: Support smart load-shedding and efficient energy distribution.
    Compliance with Standards

    All contactors in this category comply with BS 7671: Requirements for Electrical Installations (IET Wiring Regulations). These products also adhere to IEC and EN standards, ensuring safety and reliability across various environments. Moreover, these contactors meet stringent British standards for thermal performance, overcurrent protection, and system integration.

    Key Features:
    • Wide Range: Includes 2-pole, 4-pole, NO, NC, NO/NC combined, and 24V variants.
    • Durable Design: Built to withstand heavy loads and frequent switching.
    • Compact and Modular: Space-saving form factor for effortless panel integration.
    • Trusted Brands: Hager, Live Electrical, FuseBox, and WCED.
    • Standards Compliance: Fully certified to meet BS 7671 and international regulations.
    Applications
    1. Residential:
      Control lighting, heating, and small pumps with precision.
    2. Commercial:
      Automate HVAC systems, lighting setups, and ventilation systems.
    3. Industrial:
      Manage motors, conveyors, and large machinery in production environments.
    Why Choose Contactors from This Range?

    These contactors provide reliable solutions for demanding electrical installations. With superior switching technology, modular construction, and compliance with British standards, they ensure efficiency and safety. Explore our collection to find the perfect fit for your project.






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    Next Day Delivery

    Cut-Off Time and Order Information
    To ensure your order qualifies for next day delivery, please place your order by 3:00 PM. This is subject to all items being available on the shelf at the time of your order. For orders where the total value exceeds £150 + VAT (double our standard carriage-paid order value of £75 + VAT), we are happy to split the delivery into two shipments if some items are needed urgently and others are not immediately available. If you have any questions or need further assistance, feel free to reach out to us via WhatsApp for live support. We’re here to help!

    In Stock Delivery Policy

    Free Next-Day Delivery Over £75 + VAT:
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    Orders Below £150 + VAT:
    To keep costs manageable, we dispatch your order once all items are ready, including products with longer lead times.

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    Orders Above £150 + VAT:
    For larger orders, we can split delivery at no extra cost. In-stock items will be sent immediately, with the remaining items dispatched once available.

    Backorder Delivery Policy

    Items with Lead Times (e.g., 1–3 Working Days):
    This means we need to source the product from our supplier before sending it to you. The estimated dispatch time is displayed on each product page.

    Out of Stock at Supplier:
    If an item is unavailable at the supplier, we will contact you promptly. You’ll have the option to choose an alternative product or request a full refund.

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