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
Surge Protection Devices
Surge Protection Devices
Thermal Breakers
Thermal Breakers

39184 Products showing for Circuit Breakers

331 of 999+
Temporarily out of stock
Eaton Surge Arrester, 25kA, On Base Element Mount
  • RS Stock No. 250-9825
  • Mfr. Part No. 195237 SPRT12-350
Each
€390.07(exc. VAT)
Temporarily out of stock
nVent ERIFLEX ERIFLEX Busbar, 25mm Pitch
  • RS Stock No. 277-6084
  • Mfr. Part No. 549010
1 Pack of 4
€694.26(exc. VAT)
In Stock
ETA Thermal Circuit Breaker - 3120-N 5 Pole 50 V DC, 240 V AC Voltage Rating, 20A Current Rating
  • RS Stock No. 210-2104
  • Mfr. Part No. 3120-N551-H7T1-W19DG4-20A
Each
€30.75(exc. VAT)
In Stock
ABB MISTRAL Blanking Plate
  • RS Stock No. 232-0310
  • Mfr. Part No. 1SL1948A00 MISTRAL
Each
€6.07(exc. VAT)
Temporarily out of stock
Schneider Electric, 290 → 800mm, Canalis Series
  • RS Stock No. 358-257
  • Mfr. Part No. KSA630DLC4AM
Each
€5,262.27(exc. VAT)
In Stock
Better World
Schneider Electric Multi 9 MCB Mini Circuit Breaker, 1P, 5A Curve B, 277V AC
  • RS Stock No. 256-6750
  • Mfr. Part No. M9F21105
Each
€22.16(exc. VAT)
Temporarily out of stock
Siemens SENTRON Fixing Bracket
  • RS Stock No. 277-0883
  • Mfr. Part No. 3WA9111-0BB50
1 Set
€258.54(exc. VAT)
Temporarily out of stock
ABB S803C MCB, 3P, 16A Curve B, 415V AC, 25 kA Breaking Capacity
  • RS Stock No. 141-147
  • Mfr. Part No. 2CCS883001R0165
Each
€159.62(exc. VAT)
Temporarily out of stock
Schneider Electric ComPacT New Generation Trip Unit for use with ComPacT NSX 100/160/250 Circuit Breakers
  • RS Stock No. 260-9371
  • Mfr. Part No. C1044V040
Each
€1,390.36(exc. VAT)
In Stock
ABB System Pro M Compact S200M MCB, 3P, 32A Curve B, 440V AC, 10 kA Breaking Capacity
  • RS Stock No. 535-6128
  • Mfr. Part No. 2CDS273001R0325 S203M-B32
Each
€95.83(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON 5SY7 MCB, 1+N, 13A Curve B, 5 kA Breaking Capacity
  • RS Stock No. 216-4344
  • Mfr. Part No. 5SY7513-6
Each
€77.29(exc. VAT)
Temporarily out of stock
Phoenix Contact CM Adapter for use with FLT-CP, FLT-SEC, VAL-CP, VAL-SEC
  • RS Stock No. 131-456
  • Mfr. Part No. 2905283
Each
€721.97(exc. VAT)
In Stock
Better World
Schneider Electric Acti 9 iC60H MCB, 4P, 32A Curve D, 440V AC, 220 → 250V DC, 10 kA Breaking Capacity
  • RS Stock No. 790-8737
  • Mfr. Part No. A9F55432
Each
€139.56(exc. VAT)
Temporarily out of stock
ABB, XT2S MCCB 3P 5A, Fixed Mount
  • RS Stock No. 236-7355
  • Mfr. Part No. 1SDA067545R1 XT2S 160 TMD 5A FF
Each
€323.74(exc. VAT)
In Stock
Eaton Moeller xPole 3 Phase Busbar, 500V
  • RS Stock No. 252-823
  • Mfr. Part No. 215639 EVG-3PHAS/12MODUL
Each
€10.61(exc. VAT)
Temporarily out of stock
Siemens SENTRON 5SP37 MCB, 1P, 25A, Type E, 230V AC, 25 kA Breaking Capacity
  • RS Stock No. 328-491
  • Mfr. Part No. 5SP3735-2
1 Set
€485.65(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric TeSys Thermal Circuit Breaker - TeSyS GV 3 Pole 690V ac Voltage Rating, 12.5A Current Rating
  • RS Stock No. 175-1536
  • Mfr. Part No. GV4PE12S
Each
€622.55(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric ID RCCB, 40A, 4 Pole, 30mA, Type AC, 415V ac
  • RS Stock No. 214-2097
  • Mfr. Part No. M9R11440
Each
€166.20(exc. VAT)
Temporarily out of stock
Allen Bradley Bulletin 2 Phase Busbar, 600V ac, 17.8mm Pitch
  • RS Stock No. 218-8508
  • Mfr. Part No. 1492-A2B8
Each
€125.89(exc. VAT)
Temporarily out of stock
ABB MCCB 4P 250A, Breaking Capacity 27 kA
  • RS Stock No. 192-0833
  • Mfr. Part No. 1SDA068070R1
Each
€1,038.81(exc. VAT)
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