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

275 of 999+
Temporarily out of stock
Schneider Electric IKQ RCD, 100A, 2 Pole, 100mA, 230V ac
  • RS stock no. 339-647
  • Mfr. Part No. SED100102
Each
R 34,910.19(exc. VAT)
Temporarily out of stock
Better World
ABB Emax2 Electronic Circuit Breaker 1.6kA Ekip Dip LI, 3 channels
  • RS stock no. 259-3137
  • Mfr. Part No. 1SDA070991R1
Each
R 106,477.22(exc. VAT)
Temporarily out of stock
Schneider Electric Acti9 iC60 RCCB, 25A, 30mA, 230V
  • RS stock no. 357-453
  • Mfr. Part No. A9Q81325
Each
R 8,195.41(exc. VAT)
In Stock
ABB RCBO, 10A Current Rating, 2P Poles, 30mA Trip Sensitivity, System Pro M Compact Range
  • RS stock no. 201-6931
  • Mfr. Part No. 2CSR255180R1105
Each
R 4,084.19(exc. VAT)
In Stock
Eaton Circuit Breaker - NZM..-ME..NA 3 Pole 690V ac Voltage Rating, 90A Current Rating
  • RS stock no. 250-9703
  • Mfr. Part No. 118964 NZMN2-ME90-NA
Each
R 28,810.22(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric, Masterpact MCCB 4P 2.5kA, Fixed Mount
  • RS stock no. 248-3806
  • Mfr. Part No. LV848306
Each
R 349,851.74(exc. VAT)
Temporarily out of stock
Siemens 400V (Volts) Remote Switch Circuit Trip for use with Remote Control Switch
  • RS stock no. 613-337
  • Mfr. Part No. 5TT4104-2
Each
R 1,944.33(exc. VAT)
Temporarily out of stock
Better World
ABB System Pro M Compact S200 MCB, 1P, 20A Curve K, 253V AC, 72V DC, 6 kA Breaking Capacity
  • RS stock no. 514-0153
  • Mfr. Part No. 2CDS251001R0487 S201-K20
Each
R 627.14(exc. VAT)
In Stock
Better World
ABB System Pro M Compact S200 MCB, 1P, 32A Curve K, 253V AC, 72V DC, 6 kA Breaking Capacity
  • RS stock no. 514-0169
  • Mfr. Part No. 2CDS251001R0537 S201-K32
Each
R 649.28(exc. VAT)
Temporarily out of stock
Eaton NZM3 Electronic Circuit Breaker 320A , 4 channels , Fixed
  • RS stock no. 120-620
  • Mfr. Part No. 168508 NZMN3-4-A320-SVE
Each
R 60,406.78(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 25A, Breaking Capacity 85 kA, Fixed Mount
  • RS stock no. 211-3784
  • Mfr. Part No. 3VA2125-6HN36-0AA0
Each
R 19,574.47(exc. VAT)
In Stock
Schneider Electric RCBO, 32A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type B, Acti9 Range
  • RS stock no. 336-588
  • Mfr. Part No. SEE132B03
Each
R 3,270.37(exc. VAT)
Temporarily out of stock
ABB Current Transformer for use with S4, S5, S6, S7, T1, T2, T3, T4, T5, T6, T7, XT2, XT3, XT4, XT7-XT7M, XXT7-XT7M
  • RS stock no. 250-4516
  • Mfr. Part No. 1SDA050543R1
Each
R 23,178.96(exc. VAT)
In Stock
Better World
Schneider Electric with Fuse Isolator, Canalis Series
  • RS stock no. 436-834
  • Mfr. Part No. KNB16CF2
Each
R 1,308.31(exc. VAT)
In Stock
Better World
Schneider Electric Acti9 iIDK RCCB, 25A, 4 Pole, 30mA, Type AC, 380 → 415V ac
  • RS stock no. 238-3456
  • Mfr. Part No. A9R55425
Each
R 5,103.13(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON 5SY4 MCB, 1+N, 1.6A Curve D, 230V AC, 72V DC, 5 kA Breaking Capacity
  • RS stock no. 212-8838
  • Mfr. Part No. 5SY4515-8
Each
R 1,690.55(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON Electronic Circuit Breaker 100A 3VA2, 3 channels
  • RS stock no. 157-076
  • Mfr. Part No. 3VA2110-5JQ36-0AA0
Each
R 24,096.19(exc. VAT)
In Stock
Siemens SENTRON Door Feedthrough Accessory for use with Circuit Breaker 3VL7
  • RS stock no. 265-600
  • Mfr. Part No. 8UC7314-6BD44
Each
R 5,250.54(exc. VAT)
Temporarily out of stock
ABB Cable Connection Kit for use with MCCB
  • RS stock no. 539-1682
  • Mfr. Part No. 1SKA143000C3001 EPB KIT 3C1
Each
R 1,351.94(exc. VAT)
Temporarily out of stock
ABB RCBO, 40A Current Rating, 3P Poles, Type B
  • RS stock no. 237-5070
  • Mfr. Part No. 2CSR253001R1405
Each
R 6,478.70(exc. VAT)
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