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

1515 of 999+
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 40A, Breaking Capacity 35 kA, Fixed Mount
  • RS stock no. 270-037
  • Mfr. Part No. 3VA6140-5JP31-0AA0
Each
R 25,611.19(exc. VAT)
Temporarily out of stock
ABB MCCB Molded Case Circuit Breaker 4P 500A, Fixed Mount
  • RS stock no. 250-4206
  • Mfr. Part No. 1SDA054495R1
Each
R 113,289.07(exc. VAT)
Temporarily out of stock
Siemens SENTRON Connection Kit
  • RS stock no. 277-0828
  • Mfr. Part No. 3WA9111-0AV31
Each
R 4,182.66(exc. VAT)
Temporarily out of stock
Contactum Contactum 3 Phase Distribution Board, 8 Way, 125 A
  • RS stock no. 201-0751
  • Mfr. Part No. DDB125PIR08
Each
R 6,914.86(exc. VAT)
Temporarily out of stock
Siemens SENTRON Locking Device for use with Circuit Breaker 3WL10 / 3VA27
  • RS stock no. 266-524
  • Mfr. Part No. 3VW9011-0BA33
Each
R 2,437.78(exc. VAT)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 630A Ekip Touch LI, 4 channels
  • RS stock no. 259-3410
  • Mfr. Part No. 1SDA071344R1
Each
R 97,954.58(exc. VAT)
Temporarily out of stock
ABB System Pro M Compact S200M MCB, 1P, 50A, Type Z, 230/400V AC, 72V DC, 15 kA Breaking Capacity
  • RS stock no. 202-872
  • Mfr. Part No. 2CDS271001R0578
Each
R 1,139.49(exc. VAT)
Temporarily out of stock
Eaton xEffect xEffect - FAZ-T MCB, 1+N, 20A Curve D, 240V AC, 60V DC, 20 kA Breaking Capacity
  • RS stock no. 129-335
  • Mfr. Part No. 142513 FAZT-D20/1N
Each
R 2,236.52(exc. VAT)
In Stock
Siemens 3ZY1122 Removable Terminal for use with SIRIUS devices
  • RS stock no. 203-3947
  • Mfr. Part No. 3ZY1122-1BA00
Each (In a Pack of 6)
R 199.56(exc. VAT)
Temporarily out of stock
Better World
ABB System Pro M Compact S200 MCB, 3P, 40A, Type Z
  • RS stock no. 237-3302
  • Mfr. Part No. 2CDS253103R0558
Each
R 4,666.93(exc. VAT)
Temporarily out of stock
Siemens SENTRON 5SY7 MCB, 1P, 50A Curve D, 400V AC, 60V DC, 15 kA Breaking Capacity
  • RS stock no. 610-536
  • Mfr. Part No. 5SY7150-8
Each
R 1,787.69(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 2P 40A, Breaking Capacity 25 kA, Cable Mount, Panel Mount
  • RS stock no. 148-618
  • Mfr. Part No. 3VA5140-4ED21-0AA0
Each
R 5,059.82(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON 5SL4 MCB, 3+N, 3A Curve B, 400V AC, 72V DC
  • RS stock no. 209-7467
  • Mfr. Part No. 5SL4403-6
Each
R 3,676.03(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 100A, Breaking Capacity 25 kA
  • RS stock no. 209-6962
  • Mfr. Part No. 3VA1110-3EF32-0AA0
Each
R 5,899.22(exc. VAT)
Temporarily out of stock
Siemens SENTRON 5SJ4360 MCB, 3P, 60A Curve D, 400V AC, 60V DC, 10 kA Breaking Capacity
  • RS stock no. 300-085
  • Mfr. Part No. 5SJ4360-8HG41
Each
R 14,036.78(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 800A, Breaking Capacity 35 kA, Fixed Mount
  • RS stock no. 249-534
  • Mfr. Part No. 3VA6580-5HM42-0AA0
Each
R 90,497.56(exc. VAT)
Temporarily out of stock
ABB System Pro M Compact SU200 MR Circuit Breaker, 3P, 3A Curve K, 400V AC, 15 kA Breaking Capacity
  • RS stock no. 200-212
  • Mfr. Part No. 2CDS273347R0317
Each
R 8,424.48(exc. VAT)
In Stock
Eaton xEffect MCB, 1P, 25A Curve D, 230 → 400V AC, 6 kA Breaking Capacity
  • RS stock no. 769-4772
  • Mfr. Part No. 168065 FAZ6-D25/1
Each
R 563.31(exc. VAT)
Temporarily out of stock
Better World
Siemens SIRIUS ACT Adapter for use with M20/M25 Cable Entry
  • RS stock no. 271-9527
  • Mfr. Part No. 3SU19000JK100AA0
Each
R 1,552.82(exc. VAT)
Temporarily out of stock
Siemens SENTRON Cover
  • RS stock no. 277-0810
  • Mfr. Part No. 3WA9111-0AS18
Each
R 5,778.97(exc. VAT)
1
1515
1953
Results per page

Related links