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Contactors

Showing 41–60 of 71 results

24V Modular Contactors

24V Modular Contactors (8)

Normally Closed (NC) Modular Contactors

Normally Closed (NC) Modular Contactors (8)

NO & NC Combined Contactors

NO & NC Combined Contactors (2)

Normally Open (NO) Modular Contactors

Normally Open (NO) Modular Contactors (36)

DC Coil Modular Contactors

DC Coil Modular Contactors (24)

WCED WAC4P63NC/24 WCED 4 Pole 63A 24V Normally Closed AC Contactor 1

WCED 4 Pole 63A 24V NC Normally Closed AC Modular Contactor

3 In stock
More available within 1-3 working days*
SKU: WAC4P63NC/24
£14.50

3-£14.14£0.36£14.50
5-£13.78£0.73£14.50
10-£13.41£1.09£14.50
20-£13.05£1.45£14.50
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FuseBox INC634 FuseBox INC634 63A 4 Pole Contactor 230V 1

FuseBox INC634 63A 4 Pole 230V NO Normally Open AC Modular Contactor

2 In stock
More available within 1-3 working days*
SKU: INC634
£15.50
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WCED WAC2P25 WCED 2 Pole 25A 2NO AC Contactor 1

WCED 2 Pole 230V 25A NO Normally Open AC Modular Contactor

11 In stock
More available within 1-3 working days*
SKU: WAC2P25
£5.99

3-£5.84£0.15£5.99
5-£5.69£0.30£5.99
10-£5.54£0.45£5.99
20-£5.39£0.60£5.99
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WCED WAC4P25NC/24 WCED 4 Pole 25A 24V Normally Closed AC Contactor 1

WCED 4 Pole 25A 24V NC Normally Closed AC Modular Contactor

5 In stock
More available within 1-3 working days*
SKU: WAC4P25NC/24
£13.49

3-£13.15£0.34£13.49
5-£12.82£0.67£13.49
10-£12.48£1.01£13.49
20-£12.14£1.35£13.49
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Hager ESC225 - Contactor 25A, 2NO, 230V~50Hz

Hager ESC225 – Contactor 25A 2NO 230V 50Hz

12 In stock
More available within 1-3 working days*
SKU: ESC225
£32.58
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Hager ESC125 - Contactor 25A, 1NO, 230V~50Hz

Hager ESC125 – Contactor 25A 1NO 230V 50Hz

Delivery usually within 1-3 working days*
SKU: ESC125
£30.40
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Hager ESC425 – Contactor 25A 4NO 230V 50Hz

Hager ESC425 – Contactor 25A 4NO 230V 50Hz

6 In stock
More available within 1-3 working days*
SKU: ESC425
£58.24
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Live Electrical MDAC2P16/12V 2 Pole 16A 2NO AC Contactor/12V DC Coil

Live Electrical MDAC2P16/12V 2 Pole 16A 2NO AC Contactor/12V DC Coil

Delivery usually within 1-3 working days*
SKU: MDAC2P16/12V
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Live Electrical MDAC2P20/12V 2 Pole 20A 2NO AC Contactor/12V DC Coil

Live Electrical MDAC2P20/12V 2 Pole 20A 2NO AC Contactor/12V DC Coil

Delivery usually within 1-3 working days*
SKU: MDAC2P20/12V
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Live Electrical MDAC2P25/12V 2 Pole 25A 2NO AC Contactor/12V DC Coil

Live Electrical MDAC2P25/12V 2 Pole 25A 2NO AC Contactor/12V DC Coil

Delivery usually within 1-3 working days*
SKU: MDAC2P25/12V
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Live Electrical MDAC2P32/12V 2 Pole 32A 2NO AC Contactor/12V DC Coil

Live Electrical MDAC2P32/12V 2 Pole 32A 2NO AC Contactor/12V DC Coil

Delivery usually within 1-3 working days*
SKU: MDAC2P32/12V
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Live Electrical MDAC2P40/12V 2 Pole 40A 2NO AC Contactor/12V DC Coil

Live Electrical MDAC2P40/12V 2 Pole 40A 2NO AC Contactor/12V DC Coil

Delivery usually within 1-3 working days*
SKU: MDAC2P40/12V
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Live Electrical MDAC2P63/12V 2 Pole 63A 2NO AC Contactor/12V DC Coil

Live Electrical MDAC2P63/12V 2 Pole 63A 2NO AC Contactor/12V DC Coil

Delivery usually within 1-3 working days*
SKU: MDAC2P63/12V
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Live Electrical MDAC2P16/24V 2 Pole 16A 2NO AC Contactor/24V DC Coil

Live Electrical MDAC2P16/24V 2 Pole 16A 2NO AC Contactor/24V DC Coil

Delivery usually within 1-3 working days*
SKU: MDAC2P16/24V
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Live Electrical MDAC2P20/24V 2 Pole 20A 2NO AC Contactor/24V DC Coil

Live Electrical MDAC2P20/24V 2 Pole 20A 2NO AC Contactor/24V DC Coil

Delivery usually within 1-3 working days*
SKU: MDAC2P20/24V
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Live Electrical MDAC2P25/24V 2 Pole 25A 2NO AC Contactor/24V DC Coil

Live Electrical MDAC2P25/24V 2 Pole 25A 2NO AC Contactor/24V DC Coil

Delivery usually within 1-3 working days*
SKU: MDAC2P25/24V
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Live Electrical MDAC2P32/24V 2 Pole 32A 2NO AC Contactor/24V DC Coil

Live Electrical MDAC2P32/24V 2 Pole 32A 2NO AC Contactor/24V DC Coil

Delivery usually within 1-3 working days*
SKU: MDAC2P32/24V
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Live Electrical MDAC2P40/24V 2 Pole 40A 2NO AC Contactor/24V DC Coil

Live Electrical MDAC2P40/24V 2 Pole 40A 2NO AC Contactor/24V DC Coil

Delivery usually within 1-3 working days*
SKU: MDAC2P40/24V
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Live Electrical MDAC2P63/24V 2 Pole 63A 2NO AC Contactor/24V DC Coil

Live Electrical MDAC2P63/24V 2 Pole 63A 2NO AC Contactor/24V DC Coil

Delivery usually within 1-3 working days*
SKU: MDAC2P63/24V
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Live Electrical MDAC4P16/12V 4 Pole 16A 4NO AC Contactor/12V DC Coil

Live Electrical MDAC4P16/12V 4 Pole 16A 4NO AC Contactor/12V DC Coil

Delivery usually within 1-3 working days*
SKU: MDAC4P16/12V
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More products

Showing 41–60 of 71 results

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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