24V Contactors

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WCED 4P 40A 4NO 24V Modular contactor

2 In stock

More Available in 1-3 Days

SKU: WAC4P40/24

£13.50 £16.20

WCED 2 Pole 20A 24V Normally Closed AC Contactor

10 In stock

More available within 1-3 working days*

SKU: WAC2P20NC/24

£6.25 £7.50

WCED 2 Pole 20A 24V Normally Open AC Contactor

7 In stock

More available within 1-3 working days*

SKU: WAC2P20/24

£6.25 £7.50

WCED 4 Pole 25A 24V Normally Closed AC Contactor

5 In stock

More available within 1-3 working days*

SKU: WAC4P25NC/24

£13.49 £16.19

WCED 4 Pole 25A 24V Normally Open AC Contactor

7 In stock

More available within 1-3 working days*

SKU: WAC4P25/24

£13.49 £16.19

WCED 4 Pole 40A 24V Normally Closed AC Contactor

7 In stock

More available within 1-3 working days*

SKU: WAC4P40NC/24

£13.49 £16.19

WCED 4 Pole 63A 24V Normally Closed AC Contactor

5 In stock

More available within 1-3 working days*

SKU: WAC4P63NC/24

£14.50 £17.40

WCED 4 Pole 63A 24V Normally Open AC Contactor

Delivery usually within 1-3 working days*

SKU: WAC4P63/24

£13.50 £16.20

Showing all 8 results

24V contactors, also known as relay contactors, are electrical switching devices used for controlling electrical circuits in various applications. In the context of BS 7671 (the IET Wiring Regulations), 24V contactors and their associated control circuits are subject to certain electrical installation requirements and considerations. Here are some key points related to 24V contactors within the framework of BS 7671:

Purpose: 24V contactors are used for remotely controlling electrical circuits and equipment. They are commonly employed in industrial, commercial, and residential applications for functions such as motor control, lighting control, and HVAC (Heating, Ventilation, and Air Conditioning) systems.
Voltage and Current Ratings: 24V contactors should be selected based on their voltage and current ratings, ensuring compatibility with the electrical circuit they control. Proper sizing and selection are crucial to prevent overload or damage.
Control Voltage: The 24V control voltage is typically used to energize the coil of the contactor, which, in turn, closes or opens the contacts to control the main electrical circuit. The control voltage must be supplied by a suitable power supply or transformer.
Operation: Contactors consist of a coil that, when energized, generates a magnetic field, causing the contacts to close or open. They can be used in control circuits for starting, stopping, and reversing motors, among other functions.
Wiring and Installation: The wiring and installation of 24V contactors should adhere to the wiring regulations outlined in BS 7671. This includes proper cable sizing, routing, and termination to ensure electrical safety.
Earthing and Bonding: The earthing and bonding requirements specified in BS 7671 must be followed when installing contactors to ensure proper grounding and electrical safety.
Protection Against Mechanical Damage: Contactors should be protected against mechanical damage, such as accidental impacts, as per the regulations. This may involve the use of suitable enclosures or protective measures to prevent physical harm.
Position and Labeling: The position of contactors should be carefully chosen to facilitate safe and efficient operation. Clear labeling and identification of contactors help users understand their function.
Testing and Verification: After installation, contactors and their associated control circuits should be tested and verified to ensure proper operation and compliance with the wiring regulations.
Documentation: Proper documentation of the contactors’ location, function, and specifications should be maintained as required by BS 7671. Clear labeling and identification facilitate safe operation and maintenance.

24V contactors are essential components in control circuits, allowing for remote and automated control of electrical systems and equipment. When incorporating 24V contactors into electrical installations, it is crucial to follow BS 7671 requirements to ensure electrical safety, compliance, and reliable operation. Additionally, it is advisable to consult the manufacturer’s recommendations and any applicable product standards to ensure proper installation and functionality.

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