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

1808 of 999+
Temporarily out of stock
ABB Tmax XT Trip Unit for use with Tmax XT
  • RS stock no. 236-7263
  • Mfr. Part No. 1SDA067342R1 Ekip LSI In=63A XT2 4p
Each
R 22,824.96(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 400A, Breaking Capacity 110 kA, Fixed Mount
  • RS stock no. 271-9500
  • Mfr. Part No. 3VA1340-7FF42-0AA0
Each
R 36,526.73(exc. VAT)
In Stock
Eaton RCBO, 25A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type A, Type B, FRBmM Range
  • RS stock no. 123-700
  • Mfr. Part No. 170883 FRBMM-B25/2/003-A
Each
R 3,332.28(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric TeSys Mounting Base for use with TeSys GV
  • RS stock no. 211-2541
  • Mfr. Part No. GVAPP1
Each
R 441.50(exc. VAT)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 1kA 1SDA07, 3 channels
  • RS stock no. 259-4054
  • Mfr. Part No. 1SDA072136R1
Each
R 74,853.40(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 125A, Breaking Capacity 70 kA, DIN Rail Mount
  • RS stock no. 271-9744
  • Mfr. Part No. 3VA1112-6FF46-0AA0
Each
R 14,535.99(exc. VAT)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 4kA 1SDA07, 4 / f channels
  • RS stock no. 259-3928
  • Mfr. Part No. 1SDA071964R1
Each
R 677,695.10(exc. VAT)
Temporarily out of stock
Siemens 230V ac Undervoltage Release Circuit Trip for use with 3RV2 Series Circuit Breakers
  • RS stock no. 706-1967
  • Mfr. Part No. 3RV2902-2AP0
Each
R 750.48(exc. VAT)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 800A 1SDA07, 4 channels
  • RS stock no. 259-4612
  • Mfr. Part No. 1SDA072882R1
Each
R 146,679.43(exc. VAT)
Temporarily out of stock
ABB RCBO, 8A Current Rating, 2P Poles, 300mA Trip Sensitivity, System Pro M Compact Range
  • RS stock no. 201-6914
  • Mfr. Part No. 2CSR255180R3084
Each
R 3,121.36(exc. VAT)
Temporarily out of stock
Better World
ABB, Tmax XT MCCB 4P 10A, Fixed Mount
  • RS stock no. 236-6543
  • Mfr. Part No. 1SDA068016R1 XT2V 160 Ekip LSI 10A FF
Each
R 35,525.65(exc. VAT)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 2kA Ekip Dip LSI, 4 channels
  • RS stock no. 259-4752
  • Mfr. Part No. 1SDA073032R1
Each
R 231,527.72(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON Wire Connector for use with 3VA52 250
  • RS stock no. 269-7133
  • Mfr. Part No. 3VA9233-0JB11
Each (In a Pack of 3)
R 168.32(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 20A, Breaking Capacity 16 kA, Fixed Mount
  • RS stock no. 271-9562
  • Mfr. Part No. 3VA10202ED420AA0
Each
R 5,170.78(exc. VAT)
Temporarily out of stock
Better World
ABB System Pro M Compact S200 MCB, 3P, 500mA Curve C
  • RS stock no. 237-3312
  • Mfr. Part No. 2CDS253103R0984
Each
R 2,795.41(exc. VAT)
Temporarily out of stock
Better World
ABB, XT4N MCCB 4P 100A, Fixed Mount
  • RS stock no. 236-6622
  • Mfr. Part No. 1SDA068160R1 XT4N 160 Ekip LSIG 100A FF
Each
R 41,029.27(exc. VAT)
In Stock
ABB RCBO, 50A Current Rating, 4P Poles, Type B
  • RS stock no. 237-5218
  • Mfr. Part No. 2CSR274101R1505
Each
R 10,712.25(exc. VAT)
Temporarily out of stock
Siemens SENTRON Mounting Kit for use with 3VA11
  • RS stock no. 152-464
  • Mfr. Part No. 3VA9116-0SS10
Each
R 319.09(exc. VAT)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 160A, Breaking Capacity 5 kA, Fixed Mount
  • RS stock no. 243-296
  • Mfr. Part No. 147391 NZMN2-VE160-BT
Each
R 26,252.69(exc. VAT)
Temporarily out of stock
Allen Bradley 1492-GS 1492-GS MCB, 2P, 2.5A, Type G
  • RS stock no. 218-8621
  • Mfr. Part No. 1492-GS2G025
Each
R 3,825.82(exc. VAT)
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