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

39047 Products showing for Circuit Breakers

166 of 999+
In Stock
Sensata Airpax Airpax Thermal Circuit Breaker - 209 3 Pole 240V ac Voltage Rating Panel Mount, 60A Current Rating
  • RS stock no. 275-0063
  • Mfr. Part No. 209-3-1-63-4-2-60-H-V
Each
R 6,074.41(exc. VAT)
Temporarily out of stock
Eaton RCCB, 40A, 2 Pole, 300mA, Type S, 230V ac
  • RS stock no. 227-0720
  • Mfr. Part No. 264285 PFGM-40/2/03-S
Each
R 6,065.59(exc. VAT)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 5kA Ekip Touch LI, 4 channels
  • RS stock no. 259-3874
  • Mfr. Part No. 1SDA071894R1
Each
R 655,343.63(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 16A, Breaking Capacity 36 kA, Fixed Mount
  • RS stock no. 211-3746
  • Mfr. Part No. 3VA1196-4EF46-0AA0
Each
R 7,737.28(exc. VAT)
In Stock
Better World
Siemens SENTRON 5SL4 MCB, 1+N, 10A Curve B, 230V AC, 72V DC
  • RS stock no. 210-3380
  • Mfr. Part No. 5SL4510-6
Each
R 1,343.12(exc. VAT)
In Stock
Lovato ModuLo P1MB MCB, 2P, 2A Curve D, 230V AC, 80V DC, 10 kA Breaking Capacity
  • RS stock no. 825-5744
  • Mfr. Part No. P1MB2PD02
Each
R 1,263.65(exc. VAT)
Temporarily out of stock
ABB RCBO, 40A Current Rating, 4P Poles, Type B
  • RS stock no. 237-5197
  • Mfr. Part No. 2CSR274001R1405
Each
R 8,182.84(exc. VAT)
In Stock
ABB Tmax XT Motor Operator for use with Tmax XT
  • RS stock no. 237-6080
  • Mfr. Part No. 1SDA066457R1 MOD XT1-XT3 24VDC
Each
R 14,902.30(exc. VAT)
Temporarily out of stock
Eaton NZM Undervoltage Release for use with N(S)2(-4), N(S)3(-4), NZM2(-4), NZM3(-4)
  • RS stock no. 123-097
  • Mfr. Part No. 171802 NZM2/3-XU18DC
Each
R 3,376.14(exc. VAT)
Temporarily out of stock
Schurter TA36 Rocker Circuit Breaker - TA36 2 Pole 60 V dc, 277 V ac Voltage Rating, 3A Current Rating
  • RS stock no. 221-5638
  • Mfr. Part No. 3-128-243
1 Box of 10
R 4,036.49(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric Acti 9 iC60H MCB, 4P, 6A Curve C, 440V AC, 250V DC, 10 kA Breaking Capacity
  • RS stock no. 776-3326
  • Mfr. Part No. A9F87406
Each
R 1,958.10(exc. VAT)
Temporarily out of stock
Legrand DX Range DX3 MCB, 2P, 1A Curve C, 230V AC, 10 kA Breaking Capacity
  • RS stock no. 731-9691
  • Mfr. Part No. 4 077 76
Each
R 3,314.01(exc. VAT)
Temporarily out of stock
Lovato RCBO, 20A Current Rating, 1P + N Poles, 30mA Trip Sensitivity, Type A, P1RE1NC Range
  • RS stock no. 276-5681
  • Mfr. Part No. P1RE1NC20A030
Each
R 3,152.62(exc. VAT)
Temporarily out of stock
Eaton RCCB, 40A, 2 Pole, 100mA, Type AC, 230V ac
  • RS stock no. 227-0714
  • Mfr. Part No. 264281 PFGM-40/2/01
Each
R 4,614.88(exc. VAT)
In Stock
Better World
Schneider Electric, ComPacT NSX MCCB 4P 160A, Fixed Mount
  • RS stock no. 254-6341
  • Mfr. Part No. C16B42D160
Each
R 21,139.05(exc. VAT)
In Stock
Lovato ModuLo P1MB MCB, 2P, 2A Curve B, 230V AC, 80V DC, 10 kA Breaking Capacity
  • RS stock no. 825-5661
  • Mfr. Part No. P1MB2PB02
Each
R 1,262.75(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric Acti 9 IC60L MCB, 3P, 3A, Type Z, 400V AC, 180V DC, 20 kA, 15 kA Breaking Capacity
  • RS stock no. 212-0124
  • Mfr. Part No. A9F92303
Each
R 6,616.52(exc. VAT)
Temporarily out of stock
ABB, Tmax XT MCCB 3P 80A, Fixed Mount
  • RS stock no. 236-7357
  • Mfr. Part No. 1SDA067557R1 XT2S 160 TMA 80A FF
Each
R 7,645.40(exc. VAT)
Temporarily out of stock
Phoenix Contact EC-E Electronic Circuit Breaker 1A 24V EC-E1, 1 channels , DIN Rail
  • RS stock no. 131-317
  • Mfr. Part No. 0903023
Each (In a Pack of 6)
R 2,253.433(exc. VAT)
Temporarily out of stock
ABB SMISSLINE Busbar for Smissline TP
  • RS stock no. 246-2329
  • Mfr. Part No. 2CCF800241R0001
Each
R 289.49(exc. VAT)
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