Circuit Protection

Circuit Protection: MCBs, RCDs and RCBOs

Circuit protection devices guard final circuits against overload, short circuit and earth-leakage faults. This range stocks ABB System pro M compact S200 MCBs, DS200 RCBOs and F200 RCDs, Mersen fuses and fuse gear, Chint NB1 and NL1, IMO, Lovato Electric P1 and Finder devices, in B, C, D and K curves from 0.5 A to 125 A.

Filter by brand, current rating, curve, pole count and breaking capacity. For higher currents see MCCB & ACB; for DC-rated breakers see PV MCB; for the boards they fit see Power Distribution Systems.

Showing 12,585 products

Product Key Specs Price Qty Stock Actions
ABB s201-z2na mcb s200p 1+n pole z type 2a amp ABB S201-Z2NA 1P+N miniature circuit breaker with 2 A rating, Z tripping characteristic and 6…
ABB s201-z2na mcb s200p 1+n pole z type 2a amp ABB S201-Z2NA 1P+N miniature circuit breaker with 2 A rating, Z tripping characteristic and 6…
With Overload
£88.63 ex. VAT
Manufacturer Lead Time Estimated Delivery 14 weeks
SKU: 2CDS251103R0278
MERSEN FUSE HANDLE SELECT RED SCREW-ON DM HSRWDM Mersen HSRWDM red screw-mounted rotary selector handle with NEMA Type 3R and Type 12 ratings…
MERSEN FUSE HANDLE SELECT RED SCREW-ON DM HSRWDM Mersen HSRWDM red screw-mounted rotary selector handle with NEMA Type 3R and Type 12 ratings…
£20.62 ex. VAT
Manufacturer Lead Time Contact us for availability
SKU: HSRWDM
ABB s202p-k6na mcb s200p 2 pole d type 6amp ABB S202P-K6NA miniature circuit breaker, a 2-pole 6 A K curve thermal-magnetic MCB from the…
ABB s202p-k6na mcb s200p 2 pole d type 6amp ABB S202P-K6NA miniature circuit breaker, a 2-pole 6 A K curve thermal-magnetic MCB from the…
POA Manufacturer Lead Time Contact us for availability
Unavailable
SKU: S202P-K6NA
ABB s201-z10na mcb s200p 1+N pole z type 10a amp ABB S201-Z10NA miniature circuit breaker featuring a 10 A rated current, Z characteristic tripping curve,…
ABB s201-z10na mcb s200p 1+N pole z type 10a amp ABB S201-Z10NA miniature circuit breaker featuring a 10 A rated current, Z characteristic tripping curve,…
With Overload
£79.73 ex. VAT
Manufacturer Lead Time Estimated Delivery 12 weeks
SKU: 2CDS251103R0428
MERSEN FUSE 2,5 URGG 36/500 BS36UG25V500 Why Choose the MERSEN FUSE 2,5 URGG 36/500 BS36UG25V500?
MERSEN FUSE 2,5 URGG 36/500 BS36UG25V500 Why Choose the MERSEN FUSE 2,5 URGG 36/500 BS36UG25V500?
£77.04 ex. VAT
Manufacturer Lead Time Contact us for availability
SKU: J075540
ABB s203-b13 mcb s200p 3 pole b type 13amp ABB S203-B13 three pole 13 A B curve miniature circuit breaker with 6 kA breaking…
ABB s203-b13 mcb s200p 3 pole b type 13amp ABB S203-B13 three pole 13 A B curve miniature circuit breaker with 6 kA breaking…
With Overload
£89.25 ex. VAT
Manufacturer Lead Time Contact us for availability
SKU: S203-B13
ABB s201-b63na mcb s200p 1+n pole b type 63a amp ABB S201-B63NA miniature circuit breaker featuring a 63 A rated current, Type B tripping characteristic,…
ABB s201-b63na mcb s200p 1+n pole b type 63a amp ABB S201-B63NA miniature circuit breaker featuring a 63 A rated current, Type B tripping characteristic,…
With Overload
£122.02 ex. VAT
Manufacturer Lead Time Estimated Delivery 14 weeks
SKU: 2CDS251103R0635
MERSEN FUSE 2,5 URGG 36/50 BS36UG25V50 Why Choose the MERSEN FUSE 2,5 URGG 36/50 BS36UG25V50?
MERSEN FUSE 2,5 URGG 36/50 BS36UG25V50 Why Choose the MERSEN FUSE 2,5 URGG 36/50 BS36UG25V50?
£53.10 ex. VAT
Manufacturer Lead Time Contact us for availability
SKU: J080945
ABB s203-c0.5na mcb s200p 4p c type 0.5amp ABB S203-C0.5NA System pro M compact 3P+N miniature circuit breaker with 0.5 A rated current,…
ABB s203-c0.5na mcb s200p 4p c type 0.5amp ABB S203-C0.5NA System pro M compact 3P+N miniature circuit breaker with 0.5 A rated current,…
With Overload
£133.74 ex. VAT
Manufacturer Lead Time Contact us for availability
SKU: S203-C0.5NA
ABB s201m-d0.5 mcb s200m 1 pole d type 0.5amp ABB S201M-D0.5 single pole miniature circuit breaker with a 0.5 A rating, D curve tripping…
ABB s201m-d0.5 mcb s200m 1 pole d type 0.5amp ABB S201M-D0.5 single pole miniature circuit breaker with a 0.5 A rating, D curve tripping…
With Overload
£29.01 ex. VAT
Manufacturer Lead Time Estimated Delivery 14 weeks
SKU: 2CDS271001R0981
MERSEN FUSE CC1051 CP GRC 36 127 63 CC1051CPGRC36.127/63 Mersen J089501 Protistor high-speed semiconductor fuse with 63 A current rating and 1000 V DC…
MERSEN FUSE CC1051 CP GRC 36 127 63 CC1051CPGRC36.127/63 Mersen J089501 Protistor high-speed semiconductor fuse with 63 A current rating and 1000 V DC…
£157.87 ex. VAT
Manufacturer Lead Time Contact us for availability
SKU: J089501
ABB s203-c32 mcb s200p 3 pole c type 32amp ABB S203-C32-XLED three-pole miniature circuit breaker with a 32 A current rating, C tripping characteristic…
ABB s203-c32 mcb s200p 3 pole c type 32amp ABB S203-C32-XLED three-pole miniature circuit breaker with a 32 A current rating, C tripping characteristic…
With Overload
£71.24 ex. VAT
Manufacturer Lead Time Contact us for availability
SKU: S203-C32-XLED
LED Controls specialist
● Service Agreements

Credit Accounts

Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.

  • Priority sourcing and supply support
  • Flexible payment terms for qualifying organisations
  • Support for engineering, maintenance, and operations
500+ Stock lines ready to ship
1,000+ Same day despatches
3500+ Customers supported
28 Trusted Manufacturers

● latest blog

Factory Automation
Insights

From a Simple Idea to Small Business of the Year: The LED Controls Story So Far…

From a Simple Idea to Small Business of the Year: The LED Controls Story So Far…

LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.

LED Controls: Danfoss Drives Authorised Partner

LED Controls: Danfoss Drives Authorised Partner

2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...

LED Controls: Your Complete Control Panel Solution

LED Controls: Your Complete Control Panel Solution

2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...