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

52 of 999+
In Stock
Better World
Siemens SENTRON 5SL6 MCB, 1+N, 10A Curve B, 230V AC
  • RS Stock No. 209-7502
  • Mfr. Part No. 5SL6010-6
Each
€40.45(exc. VAT)
Temporarily out of stock
Eaton Single Phase Surge Protector, 40kA, 1.6kV, DIN Rail Mount
  • RS Stock No. 120-852
  • Mfr. Part No. 167621 SPCT2-335-1+NPE
Each
€99.80(exc. VAT)
In Stock
Better World
Schneider Electric Acti 9 Acti9 iDT40T MCB, 1+N, 6A Curve C, 230V AC, 6 kA Breaking Capacity
  • RS Stock No. 191-6087
  • Mfr. Part No. A9P22606
Each
€33.25(exc. VAT)
In Stock
Better World
Schneider Electric Acti 9 Acti9 iDT40N MCB, 1+N, 6A Curve C, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 191-6106
  • Mfr. Part No. A9P24606
Each
€71.23(exc. VAT)
In Stock
ABB 36 Way Plastic Consumer Unit, 125A, IP65 Mistral65
  • RS Stock No. 811-1903
  • Mfr. Part No. 1SL1206A00 65P12X32
Each
€108.32(exc. VAT)
In Stock
Schurter Thermal Circuit Breaker - T11 Single Pole 240V ac Voltage Rating, 8A Current Rating
  • RS Stock No. 284-5861
  • Mfr. Part No. 4400.0015
Each
€10.79(exc. VAT)
In Stock
Better World
Schneider Electric Linergy Combination Block
  • RS Stock No. 235-789
  • Mfr. Part No. GV2AF01
Each
€4.30(exc. VAT)
In Stock
Lovato ModuLo P2MB MCB, 2P, 125A Curve C, 230V AC, 60V DC, 10 kA Breaking Capacity
  • RS Stock No. 825-6166
  • Mfr. Part No. P2MB2PC125
Each
€168.86(exc. VAT)
In Stock
Schneider Electric Acti 9 MCB, 1P, 20A Curve C, 230V AC, 7.5 kA Breaking Capacity
  • RS Stock No. 200-6154
  • Mfr. Part No. A9PE2620
Each
€42.00(exc. VAT)
In Stock
Allen Bradley 1492 1492-SPM MCB, 1P, 5A Curve D, 277V AC, 48V DC, 10 kA Breaking Capacity
  • RS Stock No. 125-1497
  • Mfr. Part No. 1492-SPM1D050
Each
€23.90(exc. VAT)
In Stock
Contactum MCB, 1P, 16A Curve C, 250V AC, 10 kA Breaking Capacity
  • RS Stock No. 184-9031
  • Mfr. Part No. CPB1016C
Each
€5.99(exc. VAT)
In Stock
Electro PJP AdaBV140 Adapter for use with Screw Terminal Block
  • RS Stock No. 275-3342
  • Mfr. Part No. AdaBV140-R
Each
€4.65(exc. VAT)
In Stock
Europa EUC2P EUC MCB, 2P, 63A Curve C, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 849-6563
  • Mfr. Part No. EUC2P63C
Each
€18.43(exc. VAT)
In Stock
Schneider Electric Acti 9 Bell Transformer for use with Canalis
  • RS Stock No. 247-1920
  • Mfr. Part No. A9A15216
Each
€68.04(exc. VAT)
In Stock
Eaton RCCB, 40A, 3+N Pole, 30mA, Type AC
  • RS Stock No. 667-0624
  • Mfr. Part No. 235410 PFIM-40/4/003-MW
Each
€186.40(exc. VAT)
In Stock
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)
Temporarily out of stock
Siemens SENTRON Nut Keeper Kit for use with 3VA1 250
  • RS Stock No. 210-9329
  • Mfr. Part No. 3VA9214-0QA00
Each
€32.24(exc. VAT)
Temporarily out of stock
Siemens ALPHA Cover for use with Front Cover
  • RS Stock No. 203-3262
  • Mfr. Part No. 8GK4501-3KK22
Each
€135.31(exc. VAT)
In Stock
Better World
ABB System Pro M Compact S200 MCB, 1P, 63A Curve D, 253V AC, 72V DC, 6 kA Breaking Capacity
  • RS Stock No. 527-9532
  • Mfr. Part No. 2CDS251001R0631 S201-D63
Each
€22.30(exc. VAT)
In Stock
Schneider Electric TeSys Thermal Circuit Breaker - GB2 2 Pole 277V ac Voltage Rating DIN Rail Mount, 2A Current Rating
  • RS Stock No. 312-3780
  • Mfr. Part No. GB2DB07
Each
€47.01(exc. VAT)
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