Over 800,000 products available

Fuses & Circuit Breakers

Although they work in different ways, fuses and circuit breakers broadly have the same purpose; to protect electrical appliances and electrical circuits from short circuits, and excessive current (called overcurrent or overload).

Fuses

Fuses are relatively low cost electrical safety devices. If too much current enters the circuit, the fuse will burn out (sometimes called blowing out). When the fuse blows out it breaks the circuit. This protects the attached devices and allows you to touch devices without being electrocuted. When the fuse blows, it must be replaced before using the device or appliance again.

Circuit breakers

Circuit breakers work in a similar way to fuses, but they are resettable. Once a fault is detected (this is typically a short circuit or an excessive amount of current flowing through the circuit) the circuit breaker will interrupt the flow of current. When the circuit breaker trips, it's simply a case of flicking a switch to reset the circuit breaker. As soon as you've reset the circuit breaker, it is ready to use again.

Circuit Breakers
Circuit Breakers

Earth & Lightning Protection
Earth & Lightning Protection

Fuse Holders & Accessories
Fuse Holders & Accessories

Fuses
Fuses

51761 Products showing for Fuses & Circuit Breakers

1 of 999+
In Stock
RS PRO BS 1362 Fuse Kit
  • RS Stock No. 893-8546
Subtotal (1 unit)
£57.70(exc. VAT)
£57.70/unit
In Stock
RS PRO NF14 Series Residual Current Circuit Breaker, 40A, 4-Pole, 30 mA, Type A 400V ac
  • RS Stock No. 284-2373
Subtotal (1 unit)
£50.83(exc. VAT)
£50.83/unit
In Stock
Littelfuse Automotive Fuse Kit
  • RS Stock No. 219-9556
  • Mfr. Part No. 00940957XXN
Subtotal (1 unit)
£45.49(exc. VAT)
£45.49/unit
In Stock
WISKA Enclosure Accessory
  • RS Stock No. 700-0818
  • Mfr. Part No. EN20
Subtotal (1 pack of 6 units)
£25.00(exc. VAT)
£25.00/pack
In Stock
Eaton 32A Tag Fuse 22 x 86 mm 660V
  • RS Stock No. 261-417
  • Mfr. Part No. TIA32
Subtotal (1 pack of 20 units)
£171.77(exc. VAT)
£171.77/pack
In Stock
RS Better World
Schneider Electric Kaedra Enclosure
  • RS Stock No. 466-0527
  • Mfr. Part No. 13441
Subtotal (1 unit)
£84.16(exc. VAT)
£84.16/unit
In Stock
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 1-Pole, 4A, Type C, 240V ac AC, 48 V dc DC, 10 kA Breaking
  • RS Stock No. 791-3281
  • Mfr. Part No. A9F54104
Subtotal (1 unit)
£29.04(exc. VAT)
£29.04/unit
In Stock
RS PRO DHMZ Miniature Circuit Breaker, 1-Pole, 6A, Type C, 240V ac AC, 240 V dc DC, 10 kA Breaking Capacity
  • RS Stock No. 265-0204
Subtotal (1 unit)
£8.66(exc. VAT)
£8.66/unit
A&C Q1 Campaign
Complete Fuse Protection for Critical Operations
Our fuse range delivers reliable circuit protection to keep automated processes operating without interruption.
Shop Now
In Stock
Schneider Electric Residual Current Circuit Breaker with Overload Protection, 16A Current Rating, 1-Pole, 30 mA Trip
  • RS Stock No. 339-337
  • Mfr. Part No. SEE116C03
Subtotal (1 unit)
£137.42(exc. VAT)
£137.42/unit
In Stock
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 1-Pole, 16A, Type C, 240V ac AC, 48 V dc DC, 10 kA Breaking
  • RS Stock No. 791-3297
  • Mfr. Part No. A9F54116
Subtotal (1 unit)
£24.20(exc. VAT)
£24.20/unit
In Stock
Eaton 100A Tag Fuse NH000 500V ac
  • RS Stock No. 703-8651
  • Mfr. Part No. 100NHG000B
Subtotal (1 unit)
£7.22(exc. VAT)
£7.22/unit
In Stock
RS PRO Fuse Kit
  • RS Stock No. 918-2697
Subtotal (1 unit)
£69.52(exc. VAT)
£69.52/unit
In Stock
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 2-Pole, 2A, Type C, 12V, 133 V, 220 V, 240 V, 380 V, 415 V,
  • RS Stock No. 791-3326
  • Mfr. Part No. A9F54202
Subtotal (1 unit)
£92.21(exc. VAT)
£92.21/unit
In Stock
RS PRO 1 Phase Industrial Surge Protector, 10 kA, 1.1 kV, DIN Rail
  • RS Stock No. 101-748
Subtotal (1 unit)
£23.38(exc. VAT)
£23.38/unit
In Stock
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 1-Pole, 6A, Type B, 240V ac AC, 48 V dc DC, 10 kA Breaking
  • RS Stock No. 791-3152
  • Mfr. Part No. A9F53106
Subtotal (1 unit)
£27.39(exc. VAT)
£27.39/unit
In Stock
RS PRO DHMZ Miniature Circuit Breaker, 1-Pole, 10A, Type C, 240V ac AC, 240 V dc DC, 6 kA Breaking Capacity
  • RS Stock No. 265-0188
Subtotal (1 unit)
£8.38(exc. VAT)
£8.38/unit
In Stock
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 3-Pole, 50A, Type D, 12V, 133 V, 220 V, 240 V, 380 V, 415 V,
  • RS Stock No. 791-3587
  • Mfr. Part No. A9F55350
Subtotal (1 unit)
£145.65(exc. VAT)
£145.65/unit
In Stock
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 2-Pole, 16A, Type C, 12V, 133 V, 220 V, 240 V, 380 V, 415 V,
  • RS Stock No. 791-3344
  • Mfr. Part No. A9F54216
Subtotal (1 unit)
£72.15(exc. VAT)
£72.15/unit
In Stock
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 3-Pole, 16A, Type C, 12V, 133 V, 220 V, 240 V, 380 V, 415 V,
  • RS Stock No. 791-3382
  • Mfr. Part No. A9F54316
Subtotal (1 unit)
£106.92(exc. VAT)
£106.92/unit
In Stock
RS PRO FT Fuse Kit
  • RS Stock No. 893-8537
Subtotal (1 unit)
£92.12(exc. VAT)
£92.12/unit
1
2
3
2589
Results per page

Guides & Articles

RCBOs Guide
There are many things to consider when choosing the right RCBO. Find out more in our comprehensive RCBOs guide.
Read more
Fuses Guide
Our fuses guide explains what they are, what they are used for, how they work, and the different types available.
Read more
Distribution Boards Guide
Our distribution boards guide explains what they are, their uses and types, and how to connect distribution boards.
Read more
MCBs Guide
What are MCBs and how do they work? Discover all you need to know in our comprehensive guide.
Read more

Related links

Be the first to know about our latest products and offers

Email address

The personal information you provide to us when signing up to this mailing list will be processed in line with the Privacy Policy