Products Found: 259

Showing Results For: Reed Switches

Reed Switches

Reed switches, or magnetic reed switches, are versatile electromechanical electronic components designed to operate or actuate by applying a relatively low magnetic field. These switches comprise two or more ferromagnetic, nickel-iron alloy or other metallic, thin, and flexible reed contacts/blades enclosed in an inert-gas-filled sealed glass tube. These magnetically permeable contacts are hermetically sealed, kept apart by a small air gap, and activated by the presence/absence of a magnetic field. These specialised reed switches feature resistance against moisture, dust, and other environmental contaminants. Additionally, reed switches come in normally open or normally closed configurations and can be customised to custom sensitivity levels.

What are the Potential Benefits of Reed Switches?

Reed switches are simple yet versatile electronic components that offer several benefits in various applications. Here are some of the key advantages of using reed switches:

  • They are compact and consume less power.
  • Simple and sealed design.
  • Function as simple on/off switches and other sensing elements, including proximity and level sensors.
  • Suit hazardous environments and provide robust safety.
  • Reed switches have a fast response time with magnetic sensitivity.
  • They are highly durable with a long operational life.
  • Provide protection against environmental factors such as dust, moisture, and gases. 
  • Operate reliably over a broad range of temperatures.
  • Offer non-contact switching and are cost-effective.

Operating Principle of Reed Switches:

Upon applying a magnetic field near the reed switch, the integrated ferromagnetic material in the reed contacts becomes magnetised and attracts each other. This causes the switch’s closed state, a phenomenon when contacts come into contact and complete an electrical circuit. When the magnetic field is removed or reversed, the contacts spring back to their original position–breaking the circuit and returning to the open state.

Two Types of Reed Switches:

Reed switches mainly come in two types based on their construction and operation:

  • Form A/Normally Open – The Form A reed switch, also known as a normally open (NO) reed switch, is the most common switch type. In its normal state, the switch contacts are open where no current flows across the circuit. When a magnetic field is applied, the reeds are attracted and come into contact, closing the circuit and allowing current flow.
  • Form B/Normally Closed – The Form B reed switch, also known as a normally closed (NC) reed switch, operates opposite the Form A switch. In its normal state, the contacts are closed, flowing current across the circuit. When a magnetic field is applied, the reeds are attracted and separated, opening the circuit and interrupting the current flow.
  • Form C/Changeover Switches – There are also combination types combining the features of Form A and Form B switches, known as Form C switches or changeover switches. In their normal state, the contacts are closed (like Form B), but when a magnetic field is applied, they open (like Form A).

Typical Applications of Reed Switches:

Reed switches find applications in a wide range of industries, such as:

  • Door and Window Monitoring
  • Robotics
  • Consumer Electronics
  • Medical Equipment
  • Automotive
  • Security Systems
  • Proximity Sensing
  • Liquid Level Detection
  • Telecommunications
  • Industrial Control Systems.

FILTERS
Filters
Showing
1 -
Enrgtech #
Manufacturer Part No
Name
Availability
Price
Rating
Assemtech
Rohs Verified
RI-23B, Assemtech
208 In Stock
Check Stock & Lead Times Packaging Options
10 +
£ 1.17
Assemtech
Rohs Verified
RI-46B, Assemtech
Pre Order
Check Stock & Lead Times Packaging Options
10 +
£ 0.34
Assemtech
Rohs Verified
RI-90 Kit, Assemtech
235 In Stock
Check Stock & Lead Times Packaging Options
1 +
£ 4.90
10 +
£ 4.71
25 +
£ 4.33
Rohs Verified
GC2722 (40-50AT), Assemtech
Pre Order
Check Stock & Lead Times Packaging Options
10 +
£ 0.92
50 +
£ 0.84
100 +
£ 0.82
Rohs Verified
GC1625 (80-90AT), Assemtech
48 In Stock
Check Stock & Lead Times Packaging Options
10 +
£ 7.54
100 +
£ 6.69
250 +
£ 6.29
Assemtech
Rohs Verified
RI-26AA, Assemtech
Pre Order
Check Stock & Lead Times Packaging Options
10 +
£ 1.08
50 +
£ 1.00
100 +
£ 0.97
Assemtech
Rohs Verified
RI-70 Kit, Assemtech
36 In Stock
Check Stock & Lead Times Packaging Options
1 +
£ 2.64
10 +
£ 2.33
25 +
£ 2.16
Assemtech
Rohs Verified
RI-90, Assemtech
498 In Stock
Check Stock & Lead Times Packaging Options
10 +
£ 2.82
50 +
£ 2.60
100 +
£ 2.54
Rohs Verified
GC3723 (15-25AT), Assemtech
188 In Stock
Check Stock & Lead Times Packaging Options
10 +
£ 1.43
50 +
£ 1.39
100 +
£ 1.35
Rohs Verified
GC2522 (10-20AT), Assemtech
Pre Order
Check Stock & Lead Times Packaging Options
10 +
£ 1.42
50 +
£ 1.31
100 +
£ 1.28
Rohs Verified
GC3823 (30-40AT), Assemtech
58 In Stock
Check Stock & Lead Times Packaging Options
10 +
£ 3.74
50 +
£ 3.43
100 +
£ 3.36
Rohs Verified
GC3817 (30-40AT), Assemtech
Pre Order
Check Stock & Lead Times Packaging Options
10 +
£ 3.00
Assemtech
Rohs Verified
RI-26A, Assemtech
28 In Stock
Check Stock & Lead Times Packaging Options
10 +
£ 1.08
50 +
£ 1.00
100 +
£ 0.97
Assemtech
Rohs Verified
RI-26B, Assemtech
148 In Stock
Check Stock & Lead Times Packaging Options
10 +
£ 1.08
50 +
£ 1.00
100 +
£ 0.97
Rohs Verified
GC1917 (60-80AT), Assemtech
Pre Order
Check Stock & Lead Times Packaging Options
10 +
£ 7.54
Assemtech
Rohs Verified
RI-46 Kit, Assemtech
27 In Stock
Check Stock & Lead Times Packaging Options
1 +
£ 2.77
10 +
£ 2.42
25 +
£ 2.26
Assemtech
Rohs Verified
GC2522 Kit, Assemtech
Pre Order
Check Stock & Lead Times Packaging Options
1 +
£ 1.99
10 +
£ 1.79
25 +
£ 1.68
Assemtech
Rohs Verified
RI-46C, Assemtech
278 In Stock
Check Stock & Lead Times Packaging Options
10 +
£ 0.34
Assemtech
Rohs Verified
RI-70B, Assemtech
238 In Stock
Check Stock & Lead Times Packaging Options
10 +
£ 0.91
100 +
£ 0.82
250 +
£ 0.73
Rohs Verified
D-A96L, SMC
1 In Stock
Check Stock & Lead Times Packaging Options
1 +
£ 19.22
Assemtech
Rohs Verified
RI-23C, Assemtech
248 In Stock
Check Stock & Lead Times Packaging Options
10 +
£ 0.80
50 +
£ 0.74
100 +
£ 0.72
Assemtech
Rohs Verified
RI-23A, Assemtech
Pre Order
Check Stock & Lead Times Packaging Options
10 +
£ 1.17
100 +
£ 0.97
250 +
£ 0.79
Sensata / Cynergy3
Rohs Verified
TRA291G/20-30, Sensata / Cynergy3
120 In Stock
Check Stock & Lead Times Packaging Options
1 +
£ 2.12
20 +
£ 2.05
100 +
£ 1.93
Sensata / Cynergy3
Rohs Verified
TRA294G/20-30, Sensata / Cynergy3
1740 In Stock
Check Stock & Lead Times Packaging Options
1 +
£ 2.12
20 +
£ 2.00
100 +
£ 1.85
RS PRO
268-4849, RS PRO
136 In Stock
Check Stock & Lead Times Packaging Options
1 +
£ 11.64
10 +
£ 11.29
100 +
£ 9.30
Showing
1 -
FAQs
We offer free shipping for orders over £200 if delivery is in the UK. All other orders in the UK, shipping from £7.99 depending on the weight and measurement. Mainland Europe shipping charges start from £25. For all other countries shipping charges start from £50 for products like Reed Switches and all others.
You can email us directly at sales@enrgtech.co.uk or via our website for any queries regarding Reed Switches or any other product.
This depends on the Reed Switches individual product and information that can be found on our website.
Yes, we offer special discounts on orders above £200 for Reed Switches and all other products.
UK orders normally take between 2/3 working days. International orders normally take between 3/5 working days for all products including Reed Switches.
Yes. We keep updating our stock frequently and if a product like Reed Switches is not in stock then we will let you know.