Circuit Breakers

Having an effective and well-designed circuit protection system in every building is vital. It not only protects machinery and equipment from costly damage or even worse an electrical fire, but good circuit protection also ensures people are safe too.

Here, at RS we stock an extensive range of high-quality products within our circuit breaker range. They include various types of protection devices as well as consumer units, distribution boards and accessories. Whether you are designing and building a new system or maintaining an old one we have everything you need, providing the perfect end-to-end solution.

What are the different types of circuit breakers?

RCBO Breakers

RCBO stands for Residual Current Circuit Breaker with Over Current protection. Installed in consumer units they protect from short circuits, overload current and residual current as they combine all the functions of an MCB and an RCCB.

RCCB Breakers

RCCB stands for Residual Current Circuit Breaker. They are designed to quickly disconnect any circuit as soon as current leaks to the earthing wire. RCCBs are also effective in protecting from electrocution or shock from direct contact.

MCB Breakers

MCB stands for Miniature Circuit Breaker. They are designed to protect an electric circuit from overcurrent only. They do not safeguard people from electric shock caused by earth leakage.

MCCB Breakers

MCCB stands for Moulded Case Circuit Breaker. They are another type of electrical protection device used in higher current rating applications where an MCB would not suffice. An MCCB protects against overload and short circuit faults. With its high breaking capacity and a wider range of current ratings, MCCBs are typically found in industrial systems rather than domestic systems.

Busbar Feed & Tap-Off Units
Busbar Feed & Tap-Off Units
Busbar Trunking
Busbar Trunking
Busbar Trunking Accessories
Busbar Trunking Accessories
Busbars
Busbars
Circuit Breaker Accessories
Circuit Breaker Accessories
Circuit Trips
Circuit Trips
Consumer Units
Consumer Units
Distribution Boards
Distribution Boards
Electronic Circuit Breakers
Electronic Circuit Breakers
Energy Monitoring Devices
Energy Monitoring Devices
MCBs
MCBs
MCCBs
MCCBs
RCBOs
RCBOs
RCCBs
RCCBs
RCDs
RCDs
Surge Protection Devices
Surge Protection Devices
Thermal Breakers
Thermal Breakers

39184 Products showing for Circuit Breakers

380 of 999+
Temporarily out of stock
ABB System Pro M Compact S200 M UC MCB, 1P, 25A Curve C, 230V AC, 220V DC, 10 kA Breaking Capacity
  • RS Stock No. 202-881
  • Mfr. Part No. 2CDS271061R0254
Each
€105.25(exc. VAT)
In Stock
ETA Thermal Circuit Breaker - 1110 Single Pole 250V Voltage Rating Panel Mount, 16A Current Rating
  • RS Stock No. 417-026
  • Mfr. Part No. 1110-F112-P1M1-16A
Each
€21.07(exc. VAT)
Temporarily out of stock
Better World
ABB S200C MCB, 3P, 20A Curve C, 415V AC, 6 kA Breaking Capacity
  • RS Stock No. 212-1647
  • Mfr. Part No. 2CDS253280R0204
Each
€70.38(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 40A, Breaking Capacity 55 kA, Fixed Mount
  • RS Stock No. 210-1704
  • Mfr. Part No. 3VA2040-5KP36-0AA0
Each
€1,013.60(exc. VAT)
Temporarily out of stock
ABB F200 RCCB, 100A, 4 Pole, Type A, 277 V ac, 480 V ac
  • RS Stock No. 177-5101
  • Mfr. Part No. 2CSF204201R5900
Each
€377.03(exc. VAT)
Temporarily out of stock
Hager MMN MCB, 2P, 32A, 415V AC, 20 kA Breaking Capacity
  • RS Stock No. 597-995
  • Mfr. Part No. MMN232
Each
€283.32(exc. VAT)
Temporarily out of stock
Mersen Surge Protector
  • RS Stock No. 179-3079
  • Mfr. Part No. 83230000 / SP23-20K-N
Each
€36.51(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 100A, Breaking Capacity 36 kA
  • RS Stock No. 210-1610
  • Mfr. Part No. 3VA1110-4ED32-0AA0
Each
€246.83(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 20A, Breaking Capacity 18 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-229
  • Mfr. Part No. 3VA5120-5ED31-1AA0
Each
€289.15(exc. VAT)
In Stock
Schneider Electric ComPacT Terminal Shield for use with Circuit Breaker
  • RS Stock No. 245-047
  • Mfr. Part No. LV433694
Each
€80.98(exc. VAT)
Temporarily out of stock
ABB S304 MCB, 4P, 16A Curve B, 415V AC, 125V DC, 100 kA Breaking Capacity
  • RS Stock No. 202-841
  • Mfr. Part No. 2CDS384001R0165
Each
€146.89(exc. VAT)
Temporarily out of stock
Siemens SENTRON 5SY7 MCB, 3P, 25A Curve D, 400V AC, 60V DC, 25 kA Breaking Capacity
  • RS Stock No. 610-655
  • Mfr. Part No. 5SY7325-8
Each
€201.00(exc. VAT)
Temporarily out of stock
ABB Tmax XT Trip Unit for use with Tmax XT
  • RS Stock No. 236-7218
  • Mfr. Part No. 1SDA067251R1 TMA 40-400 XT2 4p
Each
€273.21(exc. VAT)
Temporarily out of stock
ABB Tmax XT Trip Unit for use with Tmax XT
  • RS Stock No. 236-7235
  • Mfr. Part No. 1SDA067283R1 TMG 160-480 XT2 4p
Each
€284.48(exc. VAT)
Temporarily out of stock
Allen Bradley 1492 1492-SPM MCB, 2P, 50A Curve D, 277V AC, 96V DC, 10 kA Breaking Capacity
  • RS Stock No. 125-1517
  • Mfr. Part No. 1492-SPM2D500
Each
€81.97(exc. VAT)
Currently unavailable
ETA Thermal Circuit Breaker - 8340 Single Pole 80V dc Voltage Rating Flange Mount, 1A Current Rating
  • RS Stock No. 273-4597
  • Mfr. Part No. 8340-F410-P1M1-A3H0-1A
Each
€72.10(exc. VAT)
Temporarily out of stock
Siemens SENTRON 1 Phase Busbar, 230V, 18mm Pitch
  • RS Stock No. 328-436
  • Mfr. Part No. 5ST3674-6
Each
€17.35(exc. VAT)
Temporarily out of stock
Schneider Electric A9Z RCCB, 63A, 4 Pole, 300mA, Type A-SI, 380-415V ac
  • RS Stock No. 212-354
  • Mfr. Part No. A9Z35463
Each
€326.00(exc. VAT)
In Stock
Better World
ABB S200C MCB, 2P, 10A Curve C, 240V AC, 6 kA Breaking Capacity
  • RS Stock No. 212-1606
  • Mfr. Part No. 2CDS251281R0104
Each
€49.06(exc. VAT)
Temporarily out of stock
ABB SMISSLINE TP S400E MCB, 3P, 20A Curve B, 230V AC, 6 kA Breaking Capacity
  • RS Stock No. 178-746
  • Mfr. Part No. 2CCS553001R0205 - S403EB20
Each
€91.87(exc. VAT)
1
380
1960
Results per page

Related links