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

39187 Products showing for Circuit Breakers

11 of 999+
In Stock
Better World
ABB System Pro M Compact S200 MCB, 3P, 32A Curve D, 440V AC, 6 kA Breaking Capacity
  • RS Stock No. 527-9633
  • Mfr. Part No. 2CDS253001R0321 S203-D32
Each
€77.83(exc. VAT)
Limited stock
Hager 2 Phase Busbar
  • RS Stock No. 144-4830
  • Mfr. Part No. KB263A
Each
€24.21(exc. VAT)
In Stock
Schneider Electric, Wiser Energy PowerTag, 63A, Energy Sensor, 2VA, Wireless
  • RS Stock No. 276-9362
  • Mfr. Part No. R9M70
Each
€148.93(exc. VAT)
Limited stock
ABB Padlock Adapter for use with DSE201 Series, SH200 Series
  • RS Stock No. 189-5651
  • Mfr. Part No. GJF1101903R0004
Each
€8.57(exc. VAT)
In Stock
Hager 3 Phase Busbar
  • RS Stock No. 144-4833
  • Mfr. Part No. KBN663A
Each
€30.01(exc. VAT)
In Stock
Eaton xEffect MCB, 3P, 32A Curve C, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 624-0399
  • Mfr. Part No. 278876 FAZ-C32/3
Each
€114.26(exc. VAT)
In Stock
Better World
Siemens SENTRON 5SL4 MCB, 1+N, 2A Curve B, 230V AC, 72V DC
  • RS Stock No. 210-3376
  • Mfr. Part No. 5SL4502-6
Each
€67.87(exc. VAT)
In Stock
Better World
Schneider Electric, Power Tag, 2mA, POWERTAG, 3W, Wired
  • RS Stock No. 248-3710
  • Mfr. Part No. A9XMC2D3
Each
€95.96(exc. VAT)
Temporarily out of stock
Allen Bradley 140MT Auxiliary Contact for use with Motor Protection Circuit Breaker
  • RS Stock No. 273-2277
  • Mfr. Part No. 140MT-C-AFAR10M10
Each
€17.58(exc. VAT)
In Stock
Europa RCBO, 6A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type A, EUBLMC Range
  • RS Stock No. 210-4736
  • Mfr. Part No. EUBLMC6C30A
Each
€55.69(exc. VAT)
In Stock
Better World
Schneider Electric Acti 9 1 Phase Busbar, 415V ac, 18mm Pitch
  • RS Stock No. 776-2718
  • Mfr. Part No. A9XPH124
Each
€22.79(exc. VAT)
In Stock
ABB RCBO, 20A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type C, System Pro M Compact Range
  • RS Stock No. 914-4051
  • Mfr. Part No. 2CSR255051R1204 DSE201 C20 AC30 - N Blue
Each
€83.66(exc. VAT)
In Stock
Schneider Electric Thermal Circuit Breaker - GB2 1P + N Pole 250V ac Voltage Rating DIN Rail Mount, 10A Current Rating
  • RS Stock No. 610-0910
  • Mfr. Part No. GB2CD16
Each
€36.55(exc. VAT)
Temporarily out of stock
Better World
ABB System Pro M Compact S200 MCB, 3P, 40A Curve B, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 746-7609
  • Mfr. Part No. 2CDS253001R0405 S203-B40
Each
€76.23(exc. VAT)
Temporarily out of stock
Siemens SENTRON 1 Phase Busbar, 27mm Pitch
  • RS Stock No. 202-7113
  • Mfr. Part No. 5ST3714
Each
€156.37(exc. VAT)
In Stock
Siemens ALPHA Distribution Board, 8 Way
  • RS Stock No. 211-6074
  • Mfr. Part No. 8GB1371-1
Each
€56.53(exc. VAT)
Temporarily out of stock
Eaton xEffect - FBSmV RCCB, 63A, 4 Pole, Type S, 240/415V ac
  • RS Stock No. 120-863
  • Mfr. Part No. 170157 FBSMV-63/4/1-S
Each
€301.00(exc. VAT)
In Stock
Better World
Schneider Electric Acti 9 iC60H MCB, 2P, 20A Curve C, 440V AC, 100 → 133V DC, 10 kA Breaking Capacity
  • RS Stock No. 791-3348
  • Mfr. Part No. A9F54220
Each
€57.54(exc. VAT)
In Stock
Schneider Electric Acti9 1 Phase Distribution Board, 6 Way, 125 A
  • RS Stock No. 244-967
  • Mfr. Part No. SE125A6
Each
€126.56(exc. VAT)
In Stock
Better World
Siemens Sentron 5SY6 MCB, 3P, 25A Curve C, 400V AC, 6 kA Breaking Capacity
  • RS Stock No. 489-6467
  • Mfr. Part No. 5SY6325-7
Each
€82.25(exc. VAT)
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