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

39049 Products showing for Circuit Breakers

100 of 999+
Temporarily out of stock
Hager NEN MCB, 4P, 10A Curve B, 240 → 400V AC, 10 kA Breaking Capacity
  • RS stock no. 144-4698
  • Mfr. Part No. NEN410
Each
R 5,111.07(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric TeSys Thermal Circuit Breaker - GV4PE 3 Pole 690V ac Voltage Rating, 3.5A Current Rating
  • RS stock no. 175-1520
  • Mfr. Part No. GV4PE03N
Each
R 15,856.78(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric, Masterpact MCCB 3P 2.5kA, Fixed Mount
  • RS stock no. 248-3782
  • Mfr. Part No. LV848070
Each
R 235,747.95(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON Circuit breaker 2P 160A, DIN Rail Mount
  • RS stock no. 224-7812
  • Mfr. Part No. 3VA1116-4ED26-0AA0
Each
R 8,922.25(exc. VAT)
In Stock
ABB Tmax XT Trip Unit for use with Tmax XT
  • RS stock no. 236-7319
  • Mfr. Part No. 1SDA067498R1 Ekip LS/I In=40A XT4 3p
Each
R 7,280.74(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric Acti9 iIG40K RCCB, 40A, 1+N Pole, 300mA, Type AC, 220 → 240V ac
  • RS stock no. 238-3476
  • Mfr. Part No. A9R79640
Each
R 4,115.99(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 63A, Breaking Capacity 25 kA, Fixed Mount
  • RS stock no. 271-9384
  • Mfr. Part No. 3VA1163-3GF46-0AA0
Each
R 7,244.33(exc. VAT)
Temporarily out of stock
Phoenix Contact EC-E Electronic Circuit Breaker 4A 24V EC-E, 1 channels , DIN Rail
  • RS stock no. 131-308
  • Mfr. Part No. 0903045
Each (In a Pack of 6)
R 2,247.42(exc. VAT)
Temporarily out of stock
Siemens ALPHA Distribution Board
  • RS stock no. 272-0323
  • Mfr. Part No. 8GK1081-4KK30
Each
R 40,873.28(exc. VAT)
Temporarily out of stock
Hager NQN MCB, 3P, 63A Curve B, 415V AC, 15 kA Breaking Capacity
  • RS stock no. 597-868
  • Mfr. Part No. NQN363
Each
R 9,178.60(exc. VAT)
In Stock
Schneider Electric, ComPacT NSX MCCB 3P 100A, Fixed Mount
  • RS stock no. 254-6269
  • Mfr. Part No. C1032D100
Each
R 8,616.94(exc. VAT)
Temporarily out of stock
Better World
ABB, XT4H MCCB 4P 16A, Fixed Mount
  • RS stock no. 236-6702
  • Mfr. Part No. 1SDA068346R1 XT4H 160 TMD 16A FF
Each
R 18,917.38(exc. VAT)
Temporarily out of stock
ABB Front Terminal for use with S6, T6
  • RS stock no. 250-4517
  • Mfr. Part No. 1SDA050689R1
Each
R 23,600.86(exc. VAT)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 1.6kA Ekip Dip LI, 3 channels
  • RS stock no. 259-4238
  • Mfr. Part No. 1SDA072361R1
Each
R 137,624.73(exc. VAT)
In Stock
Eaton xEffect MCB, 2P, 20A Curve D, 240 → 415V AC, 10 kA Breaking Capacity
  • RS stock no. 847-3548
  • Mfr. Part No. 102191 FAZ-D20/2-NA
Each
R 2,231.09(exc. VAT)
In Stock
Better World
Schneider Electric Multi 9 C60SP MCB, 1P, 20A Curve B, 415V AC, 60V DC, 20 kA Breaking Capacity
  • RS stock no. 211-2334
  • Mfr. Part No. M9F21120
Each
R 707.95(exc. VAT)
Temporarily out of stock
Better World
ABB, Tmax XT MCCB 4P 100A, Fixed Mount
  • RS stock no. 236-7518
  • Mfr. Part No. 1SDA067836R1 XT2S 160 Ekip LS/I 100A FF
Each
R 15,634.56(exc. VAT)
In Stock
Eaton xEffect MCB, 3P, 40A Curve C, 230 → 400V AC, 6 kA Breaking Capacity
  • RS stock no. 769-4680
  • Mfr. Part No. 239152 FAZ6-C40/3
Each
R 2,397.04(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric Circuit Trip
  • RS stock no. 212-0239
  • Mfr. Part No. LV429433
Each
R 20,402.27(exc. VAT)
In Stock
Resi9 Busbar, 230V ac, 18mm Pitch
  • RS stock no. 585-420
  • Mfr. Part No. R9PXH210
1 Pack of 5
R 418.11(exc. VAT)
1
100
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