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

18 of 999+
Phoenix Contact Thermal Circuit Breaker - TMC 1 Single Pole 65 V dc, 250V ac Voltage Rating DIN Rail Mount, 4A Current
  • RS Stock No. 801-6987
  • Mfr. Part No. 0914125
Each
€109.82(exc. VAT)
Schneider Electric, Wiser, 16A, POWERTAG, Wireless
  • RS Stock No. 341-239
  • Mfr. Part No. CCTFR6730
Each
€63.99(exc. VAT)
Better World
Schneider Electric Easy 9 EZ9 MCB, 1P, 32A Curve B, 230V AC, 6 kA Breaking Capacity
  • RS Stock No. 850-8619
  • Mfr. Part No. EZ9F16132
Each
€6.44(exc. VAT)
Siemens SIRIUS 3 Phase Busbar, 690V
  • RS Stock No. 218-865
  • Mfr. Part No. 3RV2925-5AB
Each
€12.13(exc. VAT)
Better World
Schneider Electric RCBO, 20A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type B, Acti 9 Range
  • RS Stock No. 790-9213
  • Mfr. Part No. A9D31820
Each
€154.51(exc. VAT)
Better World
Siemens Sentron 5SY4 MCB, 2P, 25A Curve C, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 772-1331
  • Mfr. Part No. 5SY4225-7
Each
€65.17(exc. VAT)
Better World
Schneider Electric Compact Ins, Compact Insj, Compact Inv, Compact Nsx, Easypact Cvs Long Terminal Shield for use with
  • RS Stock No. 221-1266
  • Mfr. Part No. LV432596
Each
€74.74(exc. VAT)
MEAN WELL Surge Protector, 20kA, 1500V (Volts)
  • RS Stock No. 424-954
  • Mfr. Part No. SPD-20-240P
Each
€15.35(exc. VAT)
Eaton XComfort IKA Distribution Board, 8 Way
  • RS Stock No. 282-7020
  • Mfr. Part No. 174196 IKA-1/8-ST
Each
€61.86(exc. VAT)
Better World
Siemens RCBO, 16A Current Rating, 3P Poles, 30mA Trip Sensitivity, Type C, Sentron Range
  • RS Stock No. 243-6210
  • Mfr. Part No. 5SU1336-7FP16
Each
€382.85(exc. VAT)
Better World
Schneider Electric Acti 9 iC60H MCB, 1P, 25A Curve D, 100 → 133V AC, 72V DC, 10 kA Breaking Capacity
  • RS Stock No. 791-3486
  • Mfr. Part No. A9F55125
Each
€24.08(exc. VAT)
Allen Bradley 1492 1492-SPM MCB, 3P, 4A Curve C, 277V AC, 10 kA Breaking Capacity
  • RS Stock No. 125-1482
  • Mfr. Part No. 1492-SPM3C040
Each
€76.33(exc. VAT)
Contactum RCBO, 6A Current Rating, 1P Poles, 30mA Trip Sensitivity, Type B, CCPBR Range
  • RS Stock No. 240-6382
  • Mfr. Part No. CCPBR0606AB
Each
€28.44(exc. VAT)
Schneider Electric Cover for use with INS100, INS160
  • RS Stock No. 280-8418
  • Mfr. Part No. 28958
Each
€27.52(exc. VAT)
Better World
Schneider Electric, Power Tag, 2mA, POWERTAG, 3W, Wired
  • RS Stock No. 248-3710
  • Mfr. Part No. A9XMC2D3
Each
€95.96(exc. VAT)
Better World
Schneider Electric Easy 9 EZ9 MCB, 1P, 6A Curve C, 230V AC, 6 kA Breaking Capacity
  • RS Stock No. 850-8625
  • Mfr. Part No. EZ9F66106
Each
€6.44(exc. VAT)
Eaton Moeller Thermal Magnetic Circuit Breaker - 3 Pole 440V ac Voltage Rating DIN Rail, 200A Current Rating
  • RS Stock No. 221-3489
  • Mfr. Part No. 269216 NZMB2-A200-NA
Each
€1,092.38(exc. VAT)
Eaton RCD, 25A, 2 Pole, 30mA, Type A
  • RS Stock No. 922-8642
  • Mfr. Part No. 235424 PFIM-25/2/003-A-MW
Each
€160.08(exc. VAT)
Schneider Electric 20 Way Metal Consumer Unit, 100A, IP3x (with cover), IPxx D (on top) EZ9E20
  • RS Stock No. 214-777
  • Mfr. Part No. EZ9E20MCU
Each
€143.24(exc. VAT)
ABB ZLS Busbar for use with Socket
  • RS Stock No. 231-9549
  • Mfr. Part No. 2CCF002772R0001 ZLS200
1 Box of 1
€42.58(exc. VAT)
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