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

83 of 999+
Temporarily out of stock
Phoenix Contact Surge Protector, DIN Rail Mount
  • RS Stock No. 131-632
  • Mfr. Part No. 2908209
Each
€151.14(exc. VAT)
Temporarily out of stock
Schneider Electric Mureva Distribution Board, 24 Way, 160 A
  • RS Stock No. 119-439
  • Mfr. Part No. 13968M
Each
€676.76(exc. VAT)
In Stock
Better World
ABB, Tmax XT MCCB 3P 85A, Fixed Mount
  • RS Stock No. 236-6672
  • Mfr. Part No. 1SDA068290R1 XT4S 160 BLOC FF
Each
€407.30(exc. VAT)
In Stock
Better World
Schneider Electric Acti 9 iC60H MCB, 2P, 16A Curve D, 440V AC, 100 → 133V DC, 10 kA Breaking Capacity
  • RS Stock No. 791-3521
  • Mfr. Part No. A9F55216
Each
€69.22(exc. VAT)
In Stock
Mersen Surge Protector
  • RS Stock No. 179-3071
  • Mfr. Part No. 83230511 / STMT23-20K275V-SP-SM
Each
€100.00(exc. VAT)
In Stock
ABB Tmax XT Rotary Handle for use with Circuit Breaker
  • RS Stock No. 236-6853
  • Mfr. Part No. 1SDA069053R1 RHD XT2-XT4 F/P STAND
Each
€105.21(exc. VAT)
In Stock
Mersen Surge Protector, 50kA, 1000V (Volts), DIN Rail Mount
  • RS Stock No. 361-606
  • Mfr. Part No. 44020102
Each
€35.18(exc. VAT)
Temporarily out of stock
Siemens Single Phase Industrial Surge Protection, 2A, 230V (Volts), DIN Rail Mount
  • RS Stock No. 266-9578
  • Mfr. Part No. 5SY1702-4
Each
€32.69(exc. VAT)
Temporarily out of stock
ABB Tmax XT Conversion Kit for use with Circuit Breaker
  • RS Stock No. 231-9354
  • Mfr. Part No. 1SDA104707R1 P MP XT5 400A 3p
Each
€134.39(exc. VAT)
Temporarily out of stock
Phoenix Contact Surge Protector, 250V ac, DIN Rail Mount
  • RS Stock No. 801-6340
  • Mfr. Part No. 2950064
Each
€24.47(exc. VAT)
Temporarily out of stock
Phoenix Contact Surge Protector, 250V ac, DIN Rail Mount
  • RS Stock No. 801-6211
  • Mfr. Part No. 2950048
Each
€18.03(exc. VAT)
Temporarily out of stock
Eaton xComfort Distribution Board Enclosure, 24 Way
  • RS Stock No. 257-873
  • Mfr. Part No. 283034 BF-O-6/144-C
Each
€997.00(exc. VAT)
Currently unavailable
Schneider Electric RED RCCB, 25A, 2 Pole, 30mA, Type A, 230V ac
  • RS Stock No. 209-1303
  • Mfr. Part No. A9CR2225
Each
€257.18(exc. VAT)
Temporarily out of stock
Schneider Electric Acti9 1 Phase Distribution Board, 16 Way
  • RS Stock No. 339-832
  • Mfr. Part No. SEA9DE32
Each
€193.84(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 125A, Breaking Capacity 70 kA, DIN Rail Mount
  • RS Stock No. 271-9737
  • Mfr. Part No. 3VA1112-6ED36-0AA0
Each
€440.30(exc. VAT)
In Stock
ABB 3 Phase Busbar, 690V ac, 14mm Pitch
  • RS Stock No. 711-6506
  • Mfr. Part No. 1SAM201906R1104 PS1-4-0-65
Each
€19.06(exc. VAT)
Temporarily out of stock
ABB DDA203 RCD, 40A, 3 Pole, 30mA
  • RS Stock No. 231-9890
  • Mfr. Part No. 2CSB203001R2400 DDA203 AC-40/0.1
Each
€128.70(exc. VAT)
In Stock
Eaton, xEnergy MCCB 3P 160A, Breaking Capacity 50 kA, Fixed Mount
  • RS Stock No. 628-8032
  • Mfr. Part No. 259092 NZMN2-A160
1 Box of 1
€722.59(exc. VAT)
In Stock
Resi9 Busbar, 230V ac, 18mm Pitch
  • RS Stock No. 585-420
  • Mfr. Part No. R9PXH210
1 Pack of 5
€28.71(exc. VAT)
Temporarily out of stock
Siemens SENTRON SENTRON 5SY4 MCB Mini Circuit Breaker, 1P, 35A Curve C, 400V AC, 60V DC, 5 kA Breaking Capacity
  • RS Stock No. 272-0243
  • Mfr. Part No. 5SY4100-7
Each
€23.99(exc. VAT)
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