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

39046 Products showing for Circuit Breakers

119 of 999+
Temporarily out of stock
ABB Tmax XT Trip Unit for use with Tmax XT
  • RS stock no. 236-7340
  • Mfr. Part No. 1SDA067525R1 Ekip I In=100A XT4 4p
Each
R 14,133.50(exc. VAT)
Temporarily out of stock
Eaton NXLM2 Electronic Circuit Breaker 90A NZM, 3 channels , Withdrawable
  • RS stock no. 120-719
  • Mfr. Part No. 169025 NZML2-ME90-SVE
Each
R 29,367.84(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric Straight Busbar Trunking, 3m, 40A, Canalis KBB Series
  • RS stock no. 211-0390
  • Mfr. Part No. KBB40ED4300W
Each
R 4,231.23(exc. VAT)
In Stock
Schneider Electric Padlock Device for use with ComPact NS630b → NS1600
  • RS stock no. 181-2588
  • Mfr. Part No. 44936
Each
R 644.12(exc. VAT)
Temporarily out of stock
ABB Tmax T Auxiliary Contact for use with Circuit Breaker
  • RS stock no. 232-0150
  • Mfr. Part No. 1SDA062104R1 AUX-C T7 1Q+1SY 400VAC
Each
R 1,555.27(exc. VAT)
Temporarily out of stock
Schneider Electric ComPact Auxiliary Contact for use with NS630b to NS3200
  • RS stock no. 275-6649
  • Mfr. Part No. 33004
Each
R 1,103.28(exc. VAT)
Temporarily out of stock
ABB Tmax T Residual Current Release for use with Circuit Breaker
  • RS stock no. 232-0116
  • Mfr. Part No. 1SDA054955R1 BLOC DIF RC222/5 T5 F
Each
R 42,424.54(exc. VAT)
Temporarily out of stock
Better World
ABB Emax 2 MCB, 3P, 800A, 690V AC, 66 kA Breaking Capacity
  • RS stock no. 225-5871
  • Mfr. Part No. 1SDA070765R1 E1.2N 800 Ekip Touch LSI 3
Each
R 110,866.50(exc. VAT)
In Stock
Allen Bradley 1492 1492-SPM MCB, 2P, 4A Curve D, 277V AC, 96V DC, 10 kA Breaking Capacity
  • RS stock no. 125-1509
  • Mfr. Part No. 1492-SPM2D040
Each
R 1,164.98(exc. VAT)
Temporarily out of stock
Schneider Electric Acti9 3 Phase Distribution Board, 24 Way, 250 A
  • RS stock no. 244-975
  • Mfr. Part No. SE72B250
Each
R 28,223.50(exc. VAT)
Temporarily out of stock
Schneider Electric, C100 MCCB 4P 1kA, Breaking Capacity 415 V ac, Fixed Mount
  • RS stock no. 335-131
  • Mfr. Part No. C100H4FM
Each
R 83,122.97(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)
Currently unavailable
Bourns Surge Protector, 50kA, 2.5kV, DIN Rail Mount
  • RS stock no. 287-9646
  • Mfr. Part No. 1420A-PV-1000-Y
Each (In a Box of 96)
R 5,129.898(exc. VAT)
In Stock
Better World
Siemens SENTRON 5SL4 MCB, 2P, 4A Curve C, 400V AC, 72V DC, 10 kA Breaking Capacity
  • RS stock no. 209-6623
  • Mfr. Part No. 5SL4204-7
Each
R 1,602.64(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON 5SL4 MCB, 3+N, 10A Curve D, 400V AC, 10 kA Breaking Capacity
  • RS stock no. 209-6505
  • Mfr. Part No. 5SL4410-8
Each
R 3,365.94(exc. VAT)
In Stock
ETA Thermal Circuit Breaker - 3130 3 Pole 240V Voltage Rating Snap In, 16A Current Rating
  • RS stock no. 729-2815
  • Mfr. Part No. 3130-F130-P7T1-W02Q-16A
Each
R 1,027.19(exc. VAT)
Unavailable
Schneider Electric, ComPact MCCB Molded Case Circuit Breaker 3P 250A, Fixed Mount
  • RS stock no. 221-1089
  • Mfr. Part No. LV438265
Each
R 54,963.46(exc. VAT)
Temporarily out of stock
ABB System Pro M Compact S200M MCB, 1+N, 40A Curve C, 230V AC, 60V DC, 15 kA Breaking Capacity
  • RS stock no. 201-139
  • Mfr. Part No. 2CDS271103R0404
Each
R 1,261.55(exc. VAT)
In Stock
Siemens Sentron Contactor Interface Module
  • RS stock no. 196-3596
  • Mfr. Part No. 5SM2322-0
Each
R 1,869.16(exc. VAT)
Limited stock
ABB IEC Range Busbar for use with DDA200, F200, S200
  • RS stock no. 250-4747
  • Mfr. Part No. 2CDL231001R1006
Each
R 187.96(exc. VAT)
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