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

99 of 999+
In Stock
Better World
ABB System Pro M Compact S200M MCB, 2P, 3A Curve C, 440V AC, 125V DC, 10 kA Breaking Capacity
  • RS stock no. 131-999
  • Mfr. Part No. 2CDS272001R0034 S202M-C3
Each
R 1,529.71(exc. VAT)
In Stock
Better World
ABB System Pro M Compact S200 MCB, 1P, 63A Curve B, 230V AC, 6 kA Breaking Capacity
  • RS stock no. 746-7554
  • Mfr. Part No. 2CDS251001R0635 S201-B63
Each
R 462.64(exc. VAT)
In Stock
RS PRO MCB, 3P, 32A Curve C, 240 → 415V AC, 10 kA Breaking Capacity
  • RS stock no. 265-0208
Each
R 764.93(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 400A, Breaking Capacity 55 kA
  • RS stock no. 209-6884
  • Mfr. Part No. 3VA1340-5EF32-0AA0
Each
R 22,972.91(exc. VAT)
In Stock
Better World
Siemens, SENTRON Circuit breaker 3P 630A, Breaking Capacity 85 kA, DIN Rail Mount
  • RS stock no. 224-7918
  • Mfr. Part No. 3VA2463-5HL32-0AA0
Each
R 34,132.64(exc. VAT)
In Stock
Better World
ABB System Pro M Compact S200M MCB, 2P, 40A Curve B, 440V AC, 125V DC, 10 kA Breaking Capacity
  • RS stock no. 132-037
  • Mfr. Part No. 2CDS272001R0405 S202M-B40
Each
R 1,459.88(exc. VAT)
Temporarily out of stock
Siemens Sentron Connecting Terminals
  • RS stock no. 209-7099
  • Mfr. Part No. 8US1921-2AC01
Each (In a Pack of 15)
R 228.886(exc. VAT)
Temporarily out of stock
Better World
ABB, Tmax XT MCCB 4P 40A, Fixed Mount
  • RS stock no. 236-6618
  • Mfr. Part No. 1SDA068153R1 XT4N 160 Ekip LSI 40A FF
Each
R 35,393.14(exc. VAT)
Temporarily out of stock
Siemens SENTRON 1 Phase Busbar, 27mm Pitch
  • RS stock no. 202-7113
  • Mfr. Part No. 5ST3714
Each
R 3,166.82(exc. VAT)
Temporarily out of stock
Eaton Three Phase Surge Protector, 40kA, 1.4kV, DIN Rail Mount
  • RS stock no. 120-389
  • Mfr. Part No. 167595 SPCT2-280/3
Each
R 4,889.59(exc. VAT)
Temporarily out of stock
Siemens ALPHA Distribution Board
  • RS stock no. 272-0267
  • Mfr. Part No. 8GK1051-3KK20
Each
R 25,927.40(exc. VAT)
Currently unavailable
Better World
Schneider Electric Linergy Busbar, 690V, 54mm Pitch
  • RS stock no. 608-8242
  • Mfr. Part No. GV2G454
Each
R 450.04(exc. VAT)
Temporarily out of stock
Better World
ABB Emax2 Electronic Circuit Breaker 1.6kA Ekip Dip LSI, 3 channels
  • RS stock no. 259-3148
  • Mfr. Part No. 1SDA071003R1
Each
R 136,894.56(exc. VAT)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 3.2kA Ekip Touch LI, 4 channels
  • RS stock no. 259-3799
  • Mfr. Part No. 1SDA071804R1
Each
R 415,301.27(exc. VAT)
Temporarily out of stock
ABB SMISSLINE TP MCB, 2P, 2A Curve K, 240V AC
  • RS stock no. 246-2534
  • Mfr. Part No. 2CCS571103R8277
Each
R 2,351.05(exc. VAT)
Temporarily out of stock
ABB SMISSLINE TP MCB, 2P, 1A Curve K, 415V AC
  • RS stock no. 246-2572
  • Mfr. Part No. 2CCS572001R0217
Each
R 2,041.80(exc. VAT)
Temporarily out of stock
ABB High Performance S800N MCB, 1P, 63A Curve C
  • RS stock no. 225-5972
  • Mfr. Part No. 2CCS891001R0634 S801N C 63A - 36 KA
Each
R 1,794.26(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 630A, Breaking Capacity 85 kA, Fixed Mount
  • RS stock no. 211-3814
  • Mfr. Part No. 3VA2563-6HL32-0AA0
Each
R 38,769.13(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON 5SL4 MCB, 3+N, 2A Curve C, 400V AC, 72V DC
  • RS stock no. 209-6646
  • Mfr. Part No. 5SL4602-7
Each
R 3,749.88(exc. VAT)
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)
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