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

126 of 999+
In Stock
Better World
Siemens SENTRON 5SL6 MCB, 1P, 4A Curve C, 440V AC, 72V DC, 6 kA Breaking Capacity
  • RS stock no. 202-7233
  • Mfr. Part No. 5SL6104-7
Each
R 436.78(exc. VAT)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 90A, Breaking Capacity 5 kA, Fixed Mount
  • RS stock no. 253-781
  • Mfr. Part No. 269181 NZMN2-AF90-NA
Each
R 15,166.04(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 250A, Breaking Capacity 35 kA, Fixed Mount
  • RS stock no. 260-604
  • Mfr. Part No. 3VA6325-5JQ31-0AA0
Each
R 50,551.88(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric Acti 9 iC60L MCB, 2P, 2A Curve K, 15 kA Breaking Capacity
  • RS stock no. 219-9294
  • Mfr. Part No. A9F95202
Each
R 6,237.84(exc. VAT)
Temporarily out of stock
Eaton Eaton Moeller NZM Rotary Handle for use with N(S)2(-4), NZM2(-4), PN2(-4)
  • RS stock no. 258-900
  • Mfr. Part No. 285280 NZM2-XDVGR
Each
R 1,681.63(exc. VAT)
Temporarily out of stock
Rockwell Automation FB25 Busbar, 1000V
  • RS stock no. 282-2359
  • Mfr. Part No. PE-FB25224Q1
Each (In a Pack of 8)
R 198.286(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 150A, Fixed Mount
  • RS stock no. 260-8009
  • Mfr. Part No. C25V3MA150
Each
R 46,246.57(exc. VAT)
Temporarily out of stock
Siemens SENTRON Fixing Bracket for use with Busbar
  • RS stock no. 211-3870
  • Mfr. Part No. 8WH9140-0DA00
Each (In a Pack of 10)
R 63.762(exc. VAT)
In Stock
Eaton xEffect MCB, 3P, 50A Curve C, 240 → 415V AC, 10 kA Breaking Capacity
  • RS stock no. 847-3406
  • Mfr. Part No. 278878 FAZ-C50/3
Each
R 2,885.54(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 160A, Breaking Capacity 25 kA, Fixed Mount
  • RS stock no. 874-4206
  • Mfr. Part No. 3VA1116-3EF36-0AA0
Each
R 10,618.89(exc. VAT)
In Stock
ABB SMISSLINE TP MCB, 1P, 25A, Type Z, 220V AC
  • RS stock no. 246-2515
  • Mfr. Part No. 2CCS571001R1258
Each
R 1,371.88(exc. VAT)
In Stock
RS PRO Industrial Surge Protector, 40kA, 5.3kV, DIN Rail Mount
  • RS stock no. 101-776
Each
R 1,942.58(exc. VAT)
Temporarily out of stock
ABB S802C MCB, 2P, 50A Curve C, 415V AC, 25 kA Breaking Capacity
  • RS stock no. 140-468
  • Mfr. Part No. 2CCS882001R0504
Each
R 2,463.38(exc. VAT)
Temporarily out of stock
ABB Tmax XT Flexible Bar for use with XT1
  • RS stock no. 237-6174
  • Mfr. Part No. 1SDA066959R1 FB XT1 6PCS
Each
R 933.38(exc. VAT)
Temporarily out of stock
ABB System Pro M Compact S200 M UC MCB, 4P, 50A, Type Z, 400V AC, 440V DC, 10 kA Breaking Capacity
  • RS stock no. 200-836
  • Mfr. Part No. 2CDS274061R0578
Each
R 15,994.31(exc. VAT)
In Stock
ABB F200 RCD, 25A, 4 Pole, 30mA, Type AC, 230/400V ac
  • RS stock no. 183-3636
  • Mfr. Part No. 2CSF204023R1250
Each
R 2,811.74(exc. VAT)
In Stock
ABB RCBO, 20A Current Rating, 3P Poles, 30mA Trip Sensitivity, System Pro M Compact Range
  • RS stock no. 767-4415
  • Mfr. Part No. 2CSR273001R1204 DS203 M AC-C20/0,03
Each
R 6,568.80(exc. VAT)
In Stock
WAGO Electronic Circuit Breaker 10A 24V 787, 8 channels , DIN Rail
  • RS stock no. 279-4108
  • Mfr. Part No. 787-1668
Each
R 7,346.63(exc. VAT)
In Stock
WAGO Electronic Circuit Breaker 10A 24V 787, 8 channels , DIN Rail
  • RS stock no. 279-4111
  • Mfr. Part No. 787-1668/000-080
Each
R 8,613.35(exc. VAT)
In Stock
ETA Thermal Circuit Breaker - 1170 Single Pole 28V dc Voltage Rating, 10A Current Rating
  • RS stock no. 854-453
  • Mfr. Part No. 1170-21-10A
Each
R 391.79(exc. VAT)
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