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

39184 Products showing for Circuit Breakers

261 of 999+
Eaton xEffect FAZ MCB, 2P, 16A Curve D, 415V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 241-207
  • Mfr. Part No. 102230 FAZ-D16/2-RT
Each
€159.00(exc. VAT)
ABB Tmax XT Trip Unit for use with Tmax XT
  • RS Stock No. 236-7225
  • Mfr. Part No. 1SDA067259R1 TMA 160-1600 XT2 4p
Each
€284.48(exc. VAT)
Better World
Schneider Electric Multi 9 C60SP MCB, 1P, 500mA Curve C, 415V AC, 60V DC, 20 kA Breaking Capacity
  • RS Stock No. 211-2365
  • Mfr. Part No. M9F22170
Each
€32.31(exc. VAT)
Better World
Schneider Electric MCCB 2P 15 → 125A, Fixed Mount
  • RS Stock No. 178-7899
  • Mfr. Part No. LV426966
Each
€30.17(exc. VAT)
Better World
Schneider Electric Busbar Tap-Off Unit with Circuit Breaker, Canalis KT Series
  • RS Stock No. 248-4083
  • Mfr. Part No. KTB0630DC4
Each
€3,740.86(exc. VAT)
Better World
Siemens, SENTRON MCCB 4P 80A, Breaking Capacity 36 kA
  • RS Stock No. 209-6859
  • Mfr. Part No. 3VA1180-4EF46-0AA0
Each
€376.72(exc. VAT)
Siemens, SENTRON MCCB 4P 630A, Breaking Capacity 35 kA, Fixed Mount
  • RS Stock No. 270-4817
  • Mfr. Part No. 3VA2563-6JP42-0AA0
Each
€3,463.04(exc. VAT)
ABB 2 Way Plastic Terminal Cover PCD-N2, IP30 Europa-40
  • RS Stock No. 189-5643
  • Mfr. Part No. 1SL2402A01
Each
€5.77(exc. VAT)
Better World
Schneider Electric Acti9 iDT40 RCCB, 40A, 3 Pole, 300mA, Type A, 400V ac
  • RS Stock No. 238-3512
  • Mfr. Part No. A9Y65340
Each
€300.33(exc. VAT)
Better World
Schneider Electric Acti9 iDT40 RCCB, 25A, 3+N Pole, 30mA, Type A, 400V ac
  • RS Stock No. 238-3508
  • Mfr. Part No. A9Y64725
Each
€330.41(exc. VAT)
Better World
ABB, Tmax XT MCCB 4P 25A, Fixed Mount
  • RS Stock No. 236-7521
  • Mfr. Part No. 1SDA067840R1 XT2S 160 Ekip I 25A FF
Each
€928.73(exc. VAT)
Better World
Schneider Electric Horizontal Distribution Busbar Trunking, 2m, 250A, KS Series
  • RS Stock No. 219-8914
  • Mfr. Part No. KSA250ED4208
Each
€730.33(exc. VAT)
Phoenix Contact CAPAROC Electronic Circuit Breaker 4A, 2 channels
  • RS Stock No. 265-8974
  • Mfr. Part No. 1115655
Each
€94.25(exc. VAT)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 40A, Breaking Capacity 18.5 kA, Fixed Mount
  • RS Stock No. 231-454
  • Mfr. Part No. 107659 NZMB2-S40-BT-CNA
Each
€585.00(exc. VAT)
Schneider Electric, ComPacT MCCB 2P 1.2kA, Fixed Mount
  • RS Stock No. 260-7823
  • Mfr. Part No. C1BN2TM12HD
Each
€5,884.34(exc. VAT)
Siemens SENTRON Wire Connector for use with 3VA9603-0KP00
  • RS Stock No. 269-7223
  • Mfr. Part No. 3VA9603-0JJ45
1 Pack of 4
€242.80(exc. VAT)
Eaton xEffect MCB, 1+N, 5A Curve D
  • RS Stock No. 230-1055
  • Mfr. Part No. 177526 FAZ6-D5/1N
Each
€64.49(exc. VAT)
Eaton IZMX/INX Electronic Circuit Breaker 630A , DIN Rail
  • RS Stock No. 127-541
  • Mfr. Part No. 183469 IZMX16B3-P06W-1
Each
€6,532.00(exc. VAT)
Better World
Schneider Electric MCCB 3P 16 → 160A
  • RS Stock No. 178-7875
  • Mfr. Part No. LV426912
Each
€24.84(exc. VAT)
Schneider Electric A9N RCCB, 125A, 2 Pole, 300mA, Type AC, 230 → 415V ac
  • RS Stock No. 653-962
  • Mfr. Part No. A9N18544
Each
€462.78(exc. VAT)
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