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 9,598 products

Product Key Specs Price Qty Stock Actions
Chint NB1L-B20 RCBO - 1P+N - B Curve - Type AC - 20A - 30mA - 6kA Chint NB1L-B20 RCBO featuring a 20 A current rating, B curve characteristic, 30 mA residual…
Chint NB1L-B20 RCBO - 1P+N - B Curve - Type AC - 20A - 30mA - 6kA Chint NB1L-B20 RCBO featuring a 20 A current rating, B curve characteristic, 30 mA residual…
  • RCBO · 1-pole + N · B curve
£29.34 ex. VAT
Manufacturer Lead Time Contact us for availability
SKU: NB1L-B20
2CDS272447R0084 ABB S202MTR-C8 MCB 10kA 2P Type C 8A ABB S202MTR-C8 is an 8 A 2-pole C-characteristic railway miniature circuit breaker with 10 kA…
2CDS272447R0084 ABB S202MTR-C8 MCB 10kA 2P Type C 8A ABB S202MTR-C8 is an 8 A 2-pole C-characteristic railway miniature circuit breaker with 10 kA…
—
£223.30 ex. VAT
Manufacturer Lead Time Estimated Delivery 14 weeks
SKU: 2CDS272447R0084
Chint NB2LE-C06 RCBO - 1P+N - C Curve - Type AC - 6A - 30mA - 6kA CHINT NB2LE-C06 RCBO with 6 A rated current, C curve, 30 mA residual current protection…
Chint NB2LE-C06 RCBO - 1P+N - C Curve - Type AC - 6A - 30mA - 6kA CHINT NB2LE-C06 RCBO with 6 A rated current, C curve, 30 mA residual current protection…
  • RCBO · 1-pole + N · C curve
£46.20 ex. VAT
Manufacturer Lead Time Contact us for availability
SKU: NB2LE-C06
2CDS273334R0357 ABB ST203M-K5 MCB 15kA 3P K 5A UL1077 ABB ST203M-K5 is a 5 A three-pole K-characteristic miniature circuit breaker with a 15 kA…
2CDS273334R0357 ABB ST203M-K5 MCB 15kA 3P K 5A UL1077 ABB ST203M-K5 is a 5 A three-pole K-characteristic miniature circuit breaker with a 15 kA…
  • UL 1077
£93.65 ex. VAT
Manufacturer Lead Time Estimated Delivery 14 weeks
SKU: 2CDS273334R0357
Chint NB310L-2P-C32 RCBO - 2P - C Curve - Type A - 32A - 30mA - 6kA Chint NB310L-2P-C32 RCBO featuring a 32 A rating, C curve tripping, Type A residual current…
Chint NB310L-2P-C32 RCBO - 2P - C Curve - Type A - 32A - 30mA - 6kA Chint NB310L-2P-C32 RCBO featuring a 32 A rating, C curve tripping, Type A residual current…
  • RCBO · 2-pole · C curve
£30.96 ex. VAT
Manufacturer Lead Time Contact us for availability
SKU: NB310L-2P-C32
2CDS272061R0487 ABB S202M-K20UC MCB 10kA 2P Type K 20A ABB S202M-K20UC is a 20 A two-pole Type K universal-current miniature circuit breaker with 10…
2CDS272061R0487 ABB S202M-K20UC MCB 10kA 2P Type K 20A ABB S202M-K20UC is a 20 A two-pole Type K universal-current miniature circuit breaker with 10…
  • UL 1077
£163.07 ex. VAT
Manufacturer Lead Time Estimated Delivery 5 weeks
SKU: 2CDS272061R0487
Chint NB3LE-B10 RCBO - 1P+N - B Curve - Type AC - 10A - 30mA - 6kA Chint NB3LE-B10 RCBO featuring a 10 A current rating, B curve tripping characteristic, 30 mA…
Chint NB3LE-B10 RCBO - 1P+N - B Curve - Type AC - 10A - 30mA - 6kA Chint NB3LE-B10 RCBO featuring a 10 A current rating, B curve tripping characteristic, 30 mA…
  • RCBO · 1-pole + N · B curve
£23.44 ex. VAT
Manufacturer Lead Time Contact us for availability
SKU: NB3LE-B10
2CDS273334R0607 ABB ST203M-K63 Miniature Circuit Breaker 3P K 63A ABB ST203M-K63 is a 63 A three-pole K-characteristic miniature circuit breaker with 15 kA breaking…
2CDS273334R0607 ABB ST203M-K63 Miniature Circuit Breaker 3P K 63A ABB ST203M-K63 is a 63 A three-pole K-characteristic miniature circuit breaker with 15 kA breaking…
  • UL 1077
£132.72 ex. VAT
Manufacturer Lead Time Estimated Delivery 14 weeks
SKU: 2CDS273334R0607
NB3LEU-A-B32 Chint RCBO 32A B Curve 30mA 10kA 1 Pole + Neutral Chint NB3LEU-B32 RCBO, a 32 A B curve 30 mA 1P+N residual current operated circuit…
NB3LEU-A-B32 Chint RCBO 32A B Curve 30mA 10kA 1 Pole + Neutral Chint NB3LEU-B32 RCBO, a 32 A B curve 30 mA 1P+N residual current operated circuit…
  • RCBO · 1-pole + N · B curve
£20.31 ex. VAT
Manufacturer Lead Time Contact us for availability
SKU: NB3LEU-B32
2CDS272565R0324 ABB S202MTR-C32 DC 32A 2-Pole Type C DC Miniature Circuit Breaker 10kA ABB S202MTR-C32 DC is a 32 A 2-pole Type C miniature circuit breaker with 10…
2CDS272565R0324 ABB S202MTR-C32 DC 32A 2-Pole Type C DC Miniature Circuit Breaker 10kA ABB S202MTR-C32 DC is a 32 A 2-pole Type C miniature circuit breaker with 10…
—
£229.50 ex. VAT
Manufacturer Lead Time Estimated Delivery 14 weeks
SKU: 2CDS272565R0324
Chint NBH8-40-B04 MCB - 1P+N - B Curve - 4A - 4.5kA Chint NBH8-40-B04 1P+N B curve 4 A miniature circuit breaker designed for overload and short-circuit…
Chint NBH8-40-B04 MCB - 1P+N - B Curve - 4A - 4.5kA Chint NBH8-40-B04 1P+N B curve 4 A miniature circuit breaker designed for overload and short-circuit…
  • MCB · 1-pole + N · B curve
£7.50 ex. VAT
Manufacturer Lead Time Contact us for availability
SKU: NBH8-40-B04
2CDS272065R0488 ABB S202MT-Z20UC MCB 10kA 2P Type Z 20A ABB S202MT-Z20UC is a 20 A 2-pole Z-characteristic miniature circuit breaker with 10 kA short-circuit…
2CDS272065R0488 ABB S202MT-Z20UC MCB 10kA 2P Type Z 20A ABB S202MT-Z20UC is a 20 A 2-pole Z-characteristic miniature circuit breaker with 10 kA short-circuit…
—
£248.97 ex. VAT
Manufacturer Lead Time Estimated Delivery 14 weeks
SKU: 2CDS272065R0488
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