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

70 of 999+
ABB RCBO, 10A Current Rating, 4P Poles, 30mA Trip Sensitivity
  • RS Stock No. 231-9956
  • Mfr. Part No. 2CSR256140R1104 DS203NC C10 A30
Each
€221.47(exc. VAT)
Eaton Door Coupling Handle for use with EN60204, NA Type Circuit Breaker
  • RS Stock No. 178-8044
  • Mfr. Part No. 106133 PKZ0-XRH
Each
€72.50(exc. VAT)
Better World
Schneider Electric Busbar Tap-Off Unit with Circuit Breaker, Canalis Series
  • RS Stock No. 211-0494
  • Mfr. Part No. KSB160DC5
Each
€588.83(exc. VAT)
Schneider Electric 250V ac Shunt Trip Circuit Trip for use with DIN rail mounting support
  • RS Stock No. 219-9233
  • Mfr. Part No. A9E18073
Each
€22.80(exc. VAT)
Eaton xEffect MCB, 3+N, 16A Curve C, 415V AC, 10 kA Breaking Capacity
  • RS Stock No. 230-0962
  • Mfr. Part No. 239173 FAZ6-C16/3N
Each
€41.18(exc. VAT)
Schneider Electric Acti 9 IC40 MCB, 1P, 10A Curve C
  • RS Stock No. 209-1333
  • Mfr. Part No. A9P52610
Each
€24.63(exc. VAT)
Better World
Schneider Electric Acti 9 2 Phase Busbar, 415V ac, 18mm Pitch
  • RS Stock No. 776-2720
  • Mfr. Part No. A9XPH212
Each
€23.20(exc. VAT)
Better World
Schneider Electric TeSys Thermal Circuit Breaker - GV4PB 3 Pole 690V ac Voltage Rating, 115A Current Rating
  • RS Stock No. 209-5323
  • Mfr. Part No. GV4PB115N
Each
€464.23(exc. VAT)
ABB PS1 1 Phase Busbar, 690V
  • RS Stock No. 231-9629
  • Mfr. Part No. 2CDL210001R1002 PS1/2
1 Box of 1
€1.68(exc. VAT)
HENSEL ENYBOARD Distribution Board, 63 A
  • RS Stock No. 117-396
  • Mfr. Part No. KV 7106
Each
€48.02(exc. VAT)
Better World
Schneider Electric Multi 9 MCB, 2P, 10A Curve C, 10 kA Breaking Capacity
  • RS Stock No. 219-9126
  • Mfr. Part No. M9F22210
Each
€86.11(exc. VAT)
Rockwell Automation FB243 Busbar, 1000V
  • RS Stock No. 281-6004
  • Mfr. Part No. FB243672Q1
Each
€111.94(exc. VAT)
ABB Tmax XT DIN Rail Plate for use with XT2
  • RS Stock No. 236-6872
  • Mfr. Part No. 1SDA080704R1 DIN50022 XT2 PLATE UL
Each
€24.72(exc. VAT)
Allen Bradley 1492-SP 1492-SPM MCB, 1P, 6A Curve C
  • RS Stock No. 218-8734
  • Mfr. Part No. 1492-SPM1C060-N
Each
€45.97(exc. VAT)
Schneider Electric RCCB, 40A, 4 Pole, 30mA, Type A, 400V ac
  • RS Stock No. 247-1643
  • Mfr. Part No. 18266
Each
€766.04(exc. VAT)
Better World
Schneider Electric RCBO, 32A Current Rating, 3P+N Poles, 30mA Trip Sensitivity, Type C, Acti9 Range
  • RS Stock No. 239-9968
  • Mfr. Part No. A9DX3732
Each
€622.03(exc. VAT)
Phoenix Contact Surge Protector, DIN Rail Mount
  • RS Stock No. 207-2744
  • Mfr. Part No. 2906831
Each
€20.20(exc. VAT)
RS PRO MCB, 2P, 16A Curve C, 240 → 415V AC, 10 kA Breaking Capacity
  • RS Stock No. 265-0181
Each
€22.73(exc. VAT)
Better World
Siemens, SENTRON MCCB 3P 320A, Breaking Capacity 36 kA, Fixed Mount
  • RS Stock No. 210-1695
  • Mfr. Part No. 3VA1332-4EF32-0AA0
Each
€1,044.26(exc. VAT)
Hager NEN MCB, 2P, 63A Curve B, 240 → 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 144-4969
  • Mfr. Part No. NEN263
Each
€222.44(exc. VAT)
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