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Energise to Hold Electromagnets

 (18 Products)

Energise-to-hold electromagnets create a strong magnetic hold when powered and release instantly when the power is turned off. Ideal for access control, automation, and material handling, they offer safe, reliable, and energy-efficient holding. Available in various sizes and strengths to suit a variety of applications.

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Pull Strength
12.7mm dia x 38.1mm thick Electromagnet with 3.5mm Mounting Hole - 1.8kg Pull (12V DC / 1.4W)
1.8
12.7mm dia x 38.1mm thick Energise to Hold Electromagnet with 6-32 UNC Mounting Hole - 1.8kg Pull (12V DC / 1.4W)Code: EM1338M3
From £20.79£17.33
19.05mm dia x 31.75mm thick Electromagnet with 5mm Mounting Hole - 4.5kg Pull (12V DC / 2W)
4.5
19.05mm dia x 31.75mm thick Energise to Hold Electromagnet with 10-32 UNC Mounting Hole - 4.5kg Pull (12V DC / 2W)Code: EM1931M5
From £15.75£13.13
20mm dia x 15mm thick Electromagnet with M3 Mounting Hole - 2.5kg Pull (24V / 3W)
2.5
20mm dia x 15mm thick Energise to Hold Electromagnet with M3 Mounting Hole - 2.5kg Pull (24V / 3W)Code: EM200815M3
From £8.82£7.35
25.4mm dia x 19.05mm thick Electromagnet with 5mm Mounting Hole - 4.5kg Pull (12V DC / 1.0W)
4.5
25.4mm dia x 19.05mm thick Energise to Hold Electromagnet with 10-32 UNC Mounting Hole - 4.5kg Pull (12V DC / 1.0W)Code: EM2519M5
From £16.38£13.65
25.4mm dia x 31.75mm thick Electromagnet with 5mm Mounting Hole - 9.1kg Pull (12V DC / 2.4W)
9.1
25.4mm dia x 31.75mm thick Energise to Hold Electromagnet with 10-32 UNC Mounting Hole - 9.1kg Pull (12V DC / 2.4W)Code: EM2531M5
From £17.01£14.18
40mm dia x 20mm thick Electromagnet with M5 Mounting Hole - 25kg Pull (24V / 8W)
Super Strong
25
40mm dia x 20mm thick Energise to Hold Electromagnet with M5 Mounting Hole - 25kg Pull (24V / 8W)Code: EM401820M5
From £20.79£17.33
44.45mm dia x 41.275mm thick Electromagnet with 6mm Mounting Hole - 27kg Pull (12V DC / 3.3W)
Sale
27
44.45mm dia x 41.275mm thick Energise to Hold Electromagnet with 1/4-20 UNC Mounting Hole - 27kg Pull (12V DC / 3.3W)Code: EM4441M6
From £20.99£17.49
  £25.20£21.00
50mm dia x 27mm thick Electromagnet with M5 Mounting Hole - 50kg Pull (24V / 10W)
Super Strong
50
50mm dia x 27mm thick Energise to Hold Electromagnet with M5 Mounting Hole - 50kg Pull (24V / 10W)Code: EM502027M5
From £35.28£29.40
50.8mm dia x 41.275mm thick Electromagnet with 6mm Mounting Hole - 100kg Pull (12V DC / 5.2W)
100
50.8mm dia x 41.275mm thick Energise to Hold Electromagnet with 1/4-20 UNC Mounting Hole - 100kg Pull (12V DC / 5.2W)Code: EM5041M6
From £51.66£43.05
63.5 x 38.1 x 31.75mm thick Electromagnet with 5mm Mounting Hole - 91kg Pull (12V DC / 5W)
91
63.5 x 38.1 x 31.75mm thick Energise to Hold Electromagnet with 10-32 UNC Mounting Hole - 91kg Pull (12V DC / 5W)Code: EM633831M5
£79.38£66.15
63.5 x 63.5 x 38.1mm thick Electromagnet with 6mm Mounting Hole - 204kg Pull (12V DC / 8W)
Sale
204
63.5 x 63.5 x 38.1mm thick Energise to Hold Electromagnet with 1/4-20 UNC Mounting Hole - 204kg Pull (12V DC / 8W)Code: EM636338M6
£79.99£66.66
  £102.00£85.00
76.2mm dia x 50.8mm thick Electromagnet with 6mm Mounting Hole - 226kg Pull (12V DC / 12W)
226
76.2mm dia x 50.8mm thick Energise to Hold Electromagnet with 1/4-20 UNC Mounting Hole - 226kg Pull (12V DC / 12W)Code: EM7650M6
£66.00£55.00
88.9mm dia x 38.1mm thick Electromagnet with 6mm Mounting Hole - 300kg Pull (12V DC / 8W)
300
88.9mm dia x 38.1mm thick Energise to Hold Electromagnet with 1/4-20 UNC Mounting Hole - 300kg Pull (12V DC / 8W)Code: EM8838M6
£88.20£73.50
101.6mm dia x 76.2mm thick Electromagnet with 10mm Mounting Hole - 430kg Pull (12V DC / 33W)
430
101.6mm dia x 76.2mm thick Energise to Hold Electromagnet with 3/8-16 UNC Mounting Hole - 430kg Pull (12V DC / 33W)Code: EM10176M10
£186.23£155.19
114.3 x 63.5 x 50.8mm thick Electromagnet with 6mm Mounting Hole - 400kg Pull (12V DC / 12W)
400
114.3 x 63.5 x 50.8mm thick Energise to Hold Electromagnet with 1/4-20 UNC Mounting Hole - 400kg Pull (12V DC / 12W)Code: EM1146350M6
£208.04£173.37
152.4mm dia x 31.75mm thick Electromagnet with 2x 6mm Mounting Hole - 454kg Pull (12V DC / 7.8W)
454
152.4mm dia x 31.75mm thick Energise to Hold Electromagnet with 2 x 1/4-20 UNC Mounting Holes - 454kg Pull (12V DC / 7.8W)Code: EM15231M10
£224.22£186.85
152.4 x 76.2 x 50.8mm thick Electromagnet with 10mm Mounting Hole - 567kg Pull (12V DC / 37W)
567
152.4 x 76.2 x 50.8mm thick Energise to Hold Electromagnet with 3/8-16 UNC Mounting Hole - 567kg Pull (12V DC / 37W)Code: EM1527650M10
£207.90£173.25
203.2 x 101.6 x 63.5mm thick Electromagnet with 10mm Mounting Hole - 907kg Pull (110V DC / 42W)
907
203.2 x 101.6 x 63.5mm thick Energise to Hold Electromagnet with 3/8-16 UNC Mounting Hole - 907kg Pull (110V DC / 42W)Code: EM20310163M10
£351.54£292.95
18 Products
  • 1

Energise to Hold Electromagnets

Electromagnets are a versatile and powerful solution for temporary holding applications. Unlike permanent magnets, these magnets only generate a magnetic field when an electrical current is applied—giving you full control over when the magnet is active. They are inactive when unpowered, meaning they release their hold when the power is switched off. This makes them ideal for use in automation, manufacturing, robotics, and safety-critical applications where reliable, switchable magnetic holding is essential.

At FIRST4MAGNETS, we stock a wide range of high-performance electromagnets in various sizes and strengths to suit your needs. Whether you're looking for a compact magnet for a small-scale project or a heavy-duty solution for industrial use, our energise-to-hold electromagnets offer reliable, repeatable performance.

Popular Uses for Electromagnets

Energise-to-hold electromagnets are used across a wide range of industries and applications, including:

  • Automation & Manufacturing: Used to control machine movement, hold components in place, or sort metal parts in production lines.
  • Access Control Systems: Frequently used in magnetic locks and secure door systems where reliable holding and quick release are required.
  • Robotics & Engineering Projects: Ideal for robotic gripping, positioning systems, or precision lifting tasks.
  • Medical & Laboratory Equipment: Used in specialised devices that require controlled magnetic holding.
  • DIY & Hobby Electronics: A popular choice for creators looking to build interactive or mechanical prototypes.




Not quite what you're looking for?

If you're in need of an electromagnet for a safety lock or lifting system, you might need an Energise to Release Electromagnet instead. Take a look at the full range here.

For detailed information on our Electromagnet range, browse our Electromagnet Brochure here


Want to Learn More?

If you're curious about how electromagnets work, where they’re used, or how to get the most from your setup, our blog is packed with expert tips and inspiration:

Good to Knows on Our Electromagnet Range – Discover essential facts about how our energise-to-hold electromagnets work, including guidance on wiring, duty cycles, and practical considerations.

Uncovering the Key Differences Between Magnets and Electromagnets – Confused about permanent vs. electromagnets? This article breaks it down with real-world examples and expert explanations.

A Complete Guide to the Magnets Used in Motors – From brushed DC motors to cutting-edge robotics, learn how electromagnets and permanent magnets power motion across industries.

Utilising Magnets for On-Stage Magic – See how our customer used electromagnets behind the scenes to create jaw-dropping effects and seamless set changes.

Whether you're a professional engineer, a DIY enthusiast, or just getting started with magnetic projects, these resources will give you the confidence and knowledge to get the most out of your electromagnet application.

If you're not sure which electromagnet is right for your project, get in touch with the FIRST4MAGNETS® team for expert advice.