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

39187 Products showing for Circuit Breakers

99 of 999+
Siemens SENTRON 5SJ MCB, 1P, 16A
  • RS Stock No. 232-2231
  • Mfr. Part No. 5SJ4116-7HG40
Each
€45.83(exc. VAT)
Better World
Schneider Electric Acti 9 iC60N MCB, 16A Curve C, 230V AC, 6 kA Breaking Capacity
  • RS Stock No. 734-9267
  • Mfr. Part No. A9F77616
Each
€87.57(exc. VAT)
Better World
ABB System Pro M Compact S200 MCB, 2P, 63A Curve K, 400V AC, 6 kA Breaking Capacity
  • RS Stock No. 746-8012
  • Mfr. Part No. 2CDS252001R0607 S202-K63
Each
€105.41(exc. VAT)
Better World
Schneider Electric Acti 9 IC60L MCB, 2P, 12.5A, 440V AC, 15 kA Breaking Capacity
  • RS Stock No. 212-0117
  • Mfr. Part No. A9F90282
Each
€59.02(exc. VAT)
ABB S203L MCB, 3P, 50A Curve D, 400V AC, 6 kA Breaking Capacity
  • RS Stock No. 204-247
  • Mfr. Part No. 2CDS243701R0501
Each
€154.70(exc. VAT)
Better World
Schneider Electric Acti 9 1, 3 Phase Distribution Board, 4 Way
  • RS Stock No. 125-1411
  • Mfr. Part No. SEA9BNEX034N
Each
€222.46(exc. VAT)
ABB 12V dc Undervoltage Release Circuit Trip for use with DS200, DS201, DS202C, F200, S200, SN201
  • RS Stock No. 225-6150
  • Mfr. Part No. 2CSS200911R0001 S2C-UA 12 VDC
Each
€98.29(exc. VAT)
Schneider Electric 110 → 130 V dc, 230 → 415V ac Shunt Trip Shunt trip for use with NG125 Series
  • RS Stock No. 510-7011
  • Mfr. Part No. 19064
Each
€96.02(exc. VAT)
Schneider Electric RCBO, 20A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type C, Acti9 Range
  • RS Stock No. 339-510
  • Mfr. Part No. SEE120C03
Each
€158.52(exc. VAT)
Better World
Schneider Electric RCBO, 20A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type C, Acti 9 Range
  • RS Stock No. 790-9250
  • Mfr. Part No. A9D11220
Each
€233.83(exc. VAT)
Siemens SENTRON 5SP4 MCB, 2P, 125A Curve C, 400V AC
  • RS Stock No. 212-8883
  • Mfr. Part No. 5SP4292-7
Each
€292.94(exc. VAT)
Siemens SENTRON 2 Phase Busbar, 27mm Pitch
  • RS Stock No. 187-5164
  • Mfr. Part No. 5ST3610
Each
€4.87(exc. VAT)
ABB System Pro M Compact S200 M UC MCB, 4P, 20A Curve K, 400V AC, 440V DC, 10 kA Breaking Capacity
  • RS Stock No. 203-003
  • Mfr. Part No. 2CDS274061R0487
Each
€454.94(exc. VAT)
Allen Bradley 1492-SP 1492-SPM MCB, 3P, 32A Curve C
  • RS Stock No. 218-8862
  • Mfr. Part No. 1492-SPM3C320-N
Each
€115.86(exc. VAT)
MX shunt trip release, Compact NSX, Powe
  • RS Stock No. 248-4112
  • Mfr. Part No. LV429390
Each
€121.74(exc. VAT)
Better World
Siemens Sentron 5SY4 MCB, 2P, 32A Curve C, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 772-1347
  • Mfr. Part No. 5SY4232-7
Each
€68.54(exc. VAT)
Better World
Siemens SENTRON Fire Safety Circuit Breaker, 1+N, 16A Curve B, 230V AC
  • RS Stock No. 238-3204
  • Mfr. Part No. 5SV6016-6MC16
Each
€334.78(exc. VAT)
TE Connectivity Thermal Circuit Breaker - W28 Single Pole 32 V dc, 250V ac Voltage Rating, 4A Current Rating
  • RS Stock No. 782-6597
  • Mfr. Part No. W28-XQ1A-4
Each
€4.01(exc. VAT)
Schurter TA36 Rocker Circuit Breaker - TA36 2 Pole 60 V dc, 277 V ac Voltage Rating, 16A Current Rating
  • RS Stock No. 221-5619
  • Mfr. Part No. 3-128-231
1 Box of 10
€195.02(exc. VAT)
Schneider Electric Acti9 A9F MCB, 2P, 10A, Type AC, 440V AC, 15 kA Breaking Capacity
  • RS Stock No. 288-7077
  • Mfr. Part No. A9F90210
Each
€370.47(exc. VAT)
1
99
1960
Results per page

Related links