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

3 of 999+
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 800A, Breaking Capacity 30 kA, Fixed Mount
  • RS stock no. 432-856
  • Mfr. Part No. C080N32EFM
Each
R 75,182.09(exc. VAT)
In Stock
TE Connectivity Thermal Circuit Breaker - W58 Single Pole 50 V dc, 250V ac Voltage Rating, 3A Current Rating
  • RS stock no. 782-8029
  • Mfr. Part No. W58-XB1A4A-3
Each
R 272.66(exc. VAT)
Unavailable
Schneider Electric Acti 9 iC60H MCB, 1P, 25A Curve C, 230V AC, 72V DC, 10 kA Breaking Capacity
  • RS stock no. 776-8797
  • Mfr. Part No. A9F84125
Each
R 158.50(exc. VAT)
In Stock
ETA Thermal Circuit Breaker - 1658 Single Pole 250V Voltage Rating Panel Mount, 5A Current Rating
  • RS stock no. 273-0854
  • Mfr. Part No. 1658-G21-02-P10-5A
Each
R 123.64(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 630A, Breaking Capacity 30 kA, Fixed Mount
  • RS stock no. 341-264
  • Mfr. Part No. C063N32AFM
Each
R 153,840.17(exc. VAT)
In Stock
Better World
Schneider Electric Acti 9 iC60N MCB, 1P, 25A Curve C, 240V AC, 72V DC, 10 kA Breaking Capacity
  • RS stock no. 776-3452
  • Mfr. Part No. A9F77125
Each
R 281.61(exc. VAT)
In Stock
Better World
ABB System Pro M Compact S200 MCB, 1P, 20A Curve D, 253V AC, 72V DC, 6 kA Breaking Capacity
  • RS stock no. 527-9481
  • Mfr. Part No. 2CDS251001R0201 S201-D20
Each
R 444.04(exc. VAT)
In Stock
Eaton RCD, 32A, 2 Pole, 30mA, Type C
  • RS stock no. 922-8752
  • Mfr. Part No. 236305 PKNM-32/1N/C/003-MW
Each
R 3,375.08(exc. VAT)
In Stock
ETA Thermal Circuit Breaker - 1658 Single Pole 250V Voltage Rating Panel Mount, 10A Current Rating
  • RS stock no. 273-0860
  • Mfr. Part No. 1658-G21-02-P10-10A
Each
R 123.64(exc. VAT)
In Stock
Better World
ABB, Protecta MCCB 3P 250A, Breaking Capacity 36 kA, DIN Rail Mount
  • RS stock no. 831-9181
  • Mfr. Part No. 1SDA068208R1 XT1D 160 3p F F
Each
R 7,210.92(exc. VAT)
In Stock
RS PRO Thermal Circuit Breaker - Single Pole 250V ac Voltage Rating Plug In, 1A Current Rating
  • RS stock no. 262-4261
1 Box of 2
R 1,102.52(exc. VAT)
In Stock
Better World
Schneider Electric Acti 9 iC60H MCB, 3P, 32A Curve C, 440V AC, 100 → 133V DC, 10 kA Breaking Capacity
  • RS stock no. 791-3398
  • Mfr. Part No. A9F54332
Each
R 2,728.81(exc. VAT)
In Stock
TE Connectivity Thermal Circuit Breaker - W58 Single Pole 50 V dc, 250V ac Voltage Rating, 5A Current Rating
  • RS stock no. 782-8026
  • Mfr. Part No. W58-XC4C12A-5
Each
R 192.83(exc. VAT)
In Stock
Better World
Schneider Electric Multi 9 MCB, 1P, 16A Curve C, 10 kA Breaking Capacity
  • RS stock no. 219-9120
  • Mfr. Part No. M9F22116
Each
R 703.36(exc. VAT)
In Stock
RS PRO Single Phase Industrial Surge Protector, 10kA, 1.1kV, DIN Rail Mount
  • RS stock no. 101-748
Each
R 568.50(exc. VAT)
In Stock
Better World
Siemens Sentron 5SY6 MCB, 1P, 16A Curve C, 230V AC, 72V DC, 6 kA Breaking Capacity
  • RS stock no. 489-6596
  • Mfr. Part No. 5SY6116-7
Each
R 349.00(exc. VAT)
In Stock
Eaton Eaton Moeller NZM Door Coupling Handle for use with N(S)1(-4), NZM1(-4), PN1(-4)
  • RS stock no. 255-551
  • Mfr. Part No. 260166 NZM1-XTVD
Each
R 1,919.26(exc. VAT)
In Stock
RS PRO RC Suppressor Circuit for use with Contactors
  • RS stock no. 277-8523
Each
R 292.33(exc. VAT)
Temporarily out of stock
Siemens SENTRON 5SP4 MCB, 1P, 80A Curve D, 400V AC, 10 kA Breaking Capacity
  • RS stock no. 209-6560
  • Mfr. Part No. 5SP4180-8
Each
R 1,454.84(exc. VAT)
In Stock
ABB, SACE Tmax T MCCB Molded Case Circuit Breaker 3P 400A, Breaking Capacity 70 kA, Fixed Mount
  • RS stock no. 232-0095
  • Mfr. Part No. 1SDA054437R1 T5N400 FF TMA 400A
Each
R 27,650.50(exc. VAT)
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