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

39197 Products showing for Circuit Breakers

10 of 999+
Schneider Electric 250V ac Shunt Trip Circuit Trip for use with DIN rail mounting support
  • RS Stock No. 219-9231
  • Mfr. Part No. A9E18070
Each
€24.08(exc. VAT)
Eaton xEffect RCCB, 40A, 4 Pole, 300mA, Type F, 240V ac
  • RS Stock No. 246-775
  • Mfr. Part No. 187421 FRCMM-40/4/03-G/F
Each
€229.00(exc. VAT)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 40A, Breaking Capacity 15 kA, Fixed Mount
  • RS Stock No. 254-082
  • Mfr. Part No. 259095 NZMH2-A40
Each
€492.00(exc. VAT)
Schneider Electric Acti 9 1 Phase Busbar, 230V ac, 9mm Pitch
  • RS Stock No. 191-9522
  • Mfr. Part No. A9XPN612
Each
€24.33(exc. VAT)
Better World
Schneider Electric Acti 9 iC60H MCB, 2P, 2A Curve C, 440V AC, 100 → 133V DC, 10 kA Breaking Capacity
  • RS Stock No. 791-3326
  • Mfr. Part No. A9F54202
Each
€66.74(exc. VAT)
Better World
Schneider Electric Acti 9 Acti9 iDT40N MCB, 3P, 20A Curve C, 400V AC
  • RS Stock No. 238-3372
  • Mfr. Part No. A9P24320
Each
€99.76(exc. VAT)
Schneider Electric, ComPacT NSX MCCB 3P 160A, Fixed Mount
  • RS Stock No. 254-6342
  • Mfr. Part No. C16F3
Each
€405.82(exc. VAT)
Better World
Schneider Electric 110V ac/dc Remote Tripping Device Circuit Trip for use with LR3D Series, LRD Series
  • RS Stock No. 744-6973
  • Mfr. Part No. LAD703F
Each
€73.07(exc. VAT)
Better World
Schneider Electric Acti 9 iC60H MCB, 1P, 10A Curve C, 100 → 133V AC, 72V DC, 10 kA Breaking Capacity
  • RS Stock No. 791-3293
  • Mfr. Part No. A9F54110
Each
€23.36(exc. VAT)
Better World
Schneider Electric Acti 9 iC60H MCB, 1P, 4A Curve C, 100 → 133V AC, 72V DC, 70 kA Breaking Capacity
  • RS Stock No. 791-3281
  • Mfr. Part No. A9F54104
Each
€23.65(exc. VAT)
HENSEL 1, 3 Phase Distribution Board, 9 Way, 63 A
  • RS Stock No. 183-2856
  • Mfr. Part No. KV7109
Each
€65.44(exc. VAT)
ABB SMISSLINE TP S400M MCB, 1P, 16A Curve C, 240V AC, 25 kA Breaking Capacity
  • RS Stock No. 246-2479
  • Mfr. Part No. 2CCS571001R0164 S401M-C16
Each
€28.86(exc. VAT)
Better World
Schneider Electric RCBO, 20A Current Rating, 3P+N Poles, 30mA Trip Sensitivity, Type C, Acti9 Range
  • RS Stock No. 238-3324
  • Mfr. Part No. A9DS1720
Each
€302.33(exc. VAT)
Better World
Siemens 3VA9 RCD, 160A, 3 Pole, Type A
  • RS Stock No. 210-3513
  • Mfr. Part No. 3VA9113-0RL20
Each
€1,139.52(exc. VAT)
Schneider Electric RCBO, 10A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type B, Acti9 Range
  • RS Stock No. 339-509
  • Mfr. Part No. SEE110B03
Each
€158.52(exc. VAT)
Better World
ABB System Pro M Compact S200 MCB, 2P, 20A Curve D, 400V AC, 125V DC, 10 kA Breaking Capacity
  • RS Stock No. 746-7867
  • Mfr. Part No. 2CDS252001R0201 S202-D20
Each
€56.36(exc. VAT)
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)
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)
ABB S201L MCB, 1P, 32A Curve C, 230/400V AC, 6 kA Breaking Capacity
  • RS Stock No. 203-771
  • Mfr. Part No. 2CDS241701R0324
Each
€18.16(exc. VAT)
Better World
Siemens SENTRON 5SL4 MCB, 1+N, 4A Curve B, 230V AC, 72V DC
  • RS Stock No. 210-3378
  • Mfr. Part No. 5SL4504-6
Each
€67.87(exc. VAT)
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