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

242 of 999+
Temporarily out of stock
Eaton BB-EV 3 Phase Busbar, 690V, 17.8mm Pitch
  • RS stock no. 244-243
  • Mfr. Part No. 168869 BB-EVP-16/3P-1MU
Each
R 1,443.60(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 600A, Breaking Capacity 65 kA, Fixed Mount
  • RS stock no. 250-122
  • Mfr. Part No. 3VA6560-6KQ46-0AA0
Each
R 105,520.17(exc. VAT)
Temporarily out of stock
Schneider Electric Compact Long Rear Connection for use with NS630b
  • RS stock no. 354-415
  • Mfr. Part No. 33607
Each
R 6,249.55(exc. VAT)
Temporarily out of stock
Better World
Siemens 5SL6 MCB, 1+N, 25A Curve B, 230V AC
  • RS stock no. 239-2673
  • Mfr. Part No. 5SL6025-6
Each
R 886.95(exc. VAT)
Temporarily out of stock
Siemens 400V (Volts) Remote Switch Circuit Trip for use with Remote Control Switch
  • RS stock no. 613-361
  • Mfr. Part No. 5TT4111-3
Each
R 882.91(exc. VAT)
In Stock
Better World
Schneider Electric RCBO, 16A Current Rating, 3P+N Poles, 300mA Trip Sensitivity, Type C, Acti9 Range
  • RS stock no. 238-3266
  • Mfr. Part No. A9DA7716
Each
R 9,412.22(exc. VAT)
In Stock
Schneider Electric A9Q RCCB, 40A, 2 Pole, 30mA, Type A-SI, 240V ac
  • RS stock no. 276-8736
  • Mfr. Part No. A9Q31240
Each
R 6,584.92(exc. VAT)
Temporarily out of stock
Siemens SENTRON 5SP3763 MCB, 1P, 63A, Type E
  • RS stock no. 231-8358
  • Mfr. Part No. 5SP3763-3
Each
R 2,537.43(exc. VAT)
In Stock
Better World
Schneider Electric TeSys Thermal Circuit Breaker - TeSyS GV 3 Pole 690V Voltage Rating DIN Rail Mount, 65A Current
  • RS stock no. 272-858
  • Mfr. Part No. GV3L65
Each
R 6,356.63(exc. VAT)
In Stock
Siemens SENTRON 1 Phase Busbar, 1.5mm Pitch
  • RS stock no. 226-0826
  • Mfr. Part No. 5ST3703-0HG
Each
R 957.09(exc. VAT)
In Stock
Better World
Schneider Electric Multi 9 MCB, 4P, 40A, 1.5 kA Breaking Capacity
  • RS stock no. 219-9173
  • Mfr. Part No. M9R81440
Each
R 8,056.12(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON 5SL6 MCB, 1P, 300mA Curve C, 400V AC, 72V DC
  • RS stock no. 213-1034
  • Mfr. Part No. 5SL6114-7
Each
R 490.34(exc. VAT)
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)
Temporarily out of stock
ABB S304 MCB, 4P, 4A Curve D, 415V AC, 125V DC, 100 kA Breaking Capacity
  • RS stock no. 203-810
  • Mfr. Part No. 2CDS384001R0041
Each
R 5,426.83(exc. VAT)
Temporarily out of stock
Siemens SENTRON Protection Module for use with 5SY
  • RS stock no. 211-9564
  • Mfr. Part No. 5SM2326-0
Each
R 4,388.48(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric Busbar Trunking Fixing Bracket, Canalis KS Series
  • RS stock no. 219-8927
  • Mfr. Part No. KSA80EZ5
Each (In a Pack of 10)
R 634.834(exc. VAT)
Temporarily out of stock
Phoenix Contact 3 Phase Surge Protector, 25kA, 125V dc, DIN Rail Mount
  • RS stock no. 207-2661
  • Mfr. Part No. 1044386
Each
R 32,526.83(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)
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