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

1575 of 999+
Temporarily out of stock
Better World
Schneider Electric Horizontal Distribution Busbar Trunking, 1.5m, 1000A, Canalis KS Series
  • RS stock no. 211-0445
  • Mfr. Part No. KSA1000ED4154
Each
R 49,310.56(exc. VAT)
Temporarily out of stock
Better World
ABB Emax2 Electronic Circuit Breaker 800A Ekip Touch LI, 3 channels
  • RS stock no. 259-3058
  • Mfr. Part No. 1SDA070914R1
Each
R 115,762.62(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT New Generation MCCB 3P 70A, Breaking Capacity 25 kA, Screw Mount
  • RS stock no. 244-918
  • Mfr. Part No. BDL36070LU
Each
R 9,471.69(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON 5SL4 MCB, 2P, 40A Curve D, 400V AC, 10 kA Breaking Capacity
  • RS stock no. 209-6476
  • Mfr. Part No. 5SL4240-8
Each
R 3,216.54(exc. VAT)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 800A Ekip Dip LSI, 3 channels
  • RS stock no. 259-4022
  • Mfr. Part No. 1SDA072093R1
Each
R 70,238.61(exc. VAT)
Temporarily out of stock
ABB System Pro M Compact S300P MCB, 3+N, 25A, Type Z, 415V AC, 25 kA Breaking Capacity
  • RS stock no. 201-383
  • Mfr. Part No. 2CDS383103R0518
Each
R 4,795.26(exc. VAT)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 4kA Ekip Dip LSI, 4 channels
  • RS stock no. 259-3861
  • Mfr. Part No. 1SDA071872R1
Each
R 622,670.54(exc. VAT)
Temporarily out of stock
Better World
ABB Emax2 Electronic Circuit Breaker 630A 1SDA07, 3 channels
  • RS stock no. 259-9883
  • Mfr. Part No. 1SDA070716R1
Each
R 93,699.22(exc. VAT)
Temporarily out of stock
ABB System Pro M Compact S200 M UC MCB, 3P, 1.6A, Type Z, 400V AC, 440V DC, 10 kA Breaking Capacity
  • RS stock no. 204-376
  • Mfr. Part No. 2CDS273061R0258
Each
R 8,495.52(exc. VAT)
Temporarily out of stock
Siemens SENTRON 5SY7 MCB, 3P, 50A Curve D, 400V AC, 60V DC, 15 kA Breaking Capacity
  • RS stock no. 610-684
  • Mfr. Part No. 5SY7350-8
Each
R 7,453.05(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON 3VA1 MCB, 1P, 125A
  • RS stock no. 224-7797
  • Mfr. Part No. 3VA1112-3ED16-0AA0
Each
R 5,903.35(exc. VAT)
Temporarily out of stock
Eaton xEffect - FRCmM RCCB, 80A, 2 Pole, 100mA, Type A, 240/415V ac
  • RS stock no. 123-215
  • Mfr. Part No. 170276 FRCMM-80/2/01-A
Each
R 6,931.31(exc. VAT)
In Stock
Contactum RCBO, 20A Current Rating, 1P Poles, 30mA Trip Sensitivity, Type B, CCPBR Range
  • RS stock no. 240-6398
  • Mfr. Part No. CCPBR1020AB
Each
R 894.19(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 4P 250A, Fixed Mount
  • RS stock no. 260-7947
  • Mfr. Part No. C25N42D250
Each
R 49,891.94(exc. VAT)
Temporarily out of stock
Better World
ABB, Tmax XT MCCB 4P 63A, Fixed Mount
  • RS stock no. 236-6689
  • Mfr. Part No. 1SDA068319R1 XT4S 160 TMA 63A FF
Each
R 16,213.87(exc. VAT)
Temporarily out of stock
ABB S301 MCB, 1P, 32A Curve C, 415V AC, 125V DC, 100 kA Breaking Capacity
  • RS stock no. 201-293
  • Mfr. Part No. 2CDS381001R0324
Each
R 866.67(exc. VAT)
Temporarily out of stock
Siemens 230V ac Circuit Trip
  • RS stock no. 223-7651
  • Mfr. Part No. 5TT4456-0
Each
R 2,526.08(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB 4P 125A, Breaking Capacity 10 kA, Fixed Mount
  • RS stock no. 147-368
  • Mfr. Part No. 3VA5212-7ED41-2AA0
Each
R 26,308.85(exc. VAT)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 80A, Breaking Capacity 7.5 kA, Fixed Mount
  • RS stock no. 258-663
  • Mfr. Part No. 284412 NZMH1-A80
Each
R 9,824.07(exc. VAT)
Temporarily out of stock
ABB, Tmax XT MCCB 4P 125A, Fixed Mount
  • RS stock no. 236-7291
  • Mfr. Part No. 1SDA067463R1 XT1H 160 TMD 125A FF
Each
R 12,454.76(exc. VAT)
1
1575
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