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

174 of 999+
Phoenix Contact Electronic Circuit Breaker
  • RS stock no. 252-5377
  • Mfr. Part No. 1115657
Each
R 2,360.59(exc. VAT)
Better World
Siemens, SENTRON MCCB 4P 32A, Breaking Capacity 25 kA, Fixed Mount
  • RS stock no. 271-9884
  • Mfr. Part No. 3VA1132-3GF42-0AA0
Each
R 6,682.57(exc. VAT)
Siemens, SENTRON MCCB 3P 100A, Breaking Capacity 110 kA, Fixed Mount
  • RS stock no. 270-4793
  • Mfr. Part No. 3VA2510-7HM32-0AA0
Each
R 86,745.69(exc. VAT)
Schneider Electric, ComPacT MCCB 4P 250A, Fixed Mount
  • RS stock no. 260-7995
  • Mfr. Part No. C25S4D
Each
R 25,504.63(exc. VAT)
Eaton xEffect - FRCmM RCCB, 100A, 2 Pole, 100mA, Type A, 240/415V ac
  • RS stock no. 123-216
  • Mfr. Part No. 170277 FRCMM-100/2/01-A
Each
R 11,942.91(exc. VAT)
ABB SACE Emax 2 Fixed Part for use with Circuit Breaker
  • RS stock no. 231-9314
  • Mfr. Part No. 1SDA073908R1 E1.2 W FP Iu=1600 4p HR
Each
R 68,771.15(exc. VAT)
Better World
ABB, Tmax XT MCCB 3P 80A, Fixed Mount
  • RS stock no. 236-6602
  • Mfr. Part No. 1SDA068117R1 XT4N 160 MA 80 FF
Each
R 9,938.81(exc. VAT)
Eaton PKNM, S200 RCCB, 25A, Type AC
  • RS stock no. 131-517
  • Mfr. Part No. 264266 PFGM-25/2/003
Each
R 2,335.90(exc. VAT)
Siemens 350 → 415V ac Shunt Trip Shunt trip for use with 3RV2 Series Circuit Breakers
  • RS stock no. 706-1958
  • Mfr. Part No. 3RV2902-1DV0
Each
R 602.67(exc. VAT)
Better World
Siemens, SENTRON MCCB 4P 100A, Breaking Capacity 55 kA, Fixed Mount
  • RS stock no. 209-4864
  • Mfr. Part No. 3VA1110-5EF42-0AA0
Each
R 8,855.26(exc. VAT)
Siemens ALPHA Distribution Board
  • RS stock no. 272-0335
  • Mfr. Part No. 8GK1082-4KK41
Each
R 52,708.03(exc. VAT)
Weidmuller 1 Phase Surge Protector, 16A, DIN Rail Mount
  • RS stock no. 249-3334
  • Mfr. Part No. 1351650000
Each
R 2,170.80(exc. VAT)
Schneider Electric Adapter for use with ComPact NS1600b To 3200 Circuit Breaker, ComPact NS1600b To 3200 Switch
  • RS stock no. 247-1876
  • Mfr. Part No. 33976
Each
R 15,241.29(exc. VAT)
Better World
Siemens, SENTRON MCCB 4P 63A, Breaking Capacity 2.5 kA, Fixed Mount
  • RS stock no. 270-4763
  • Mfr. Part No. 3VA2163-7KQ46-0AA0
Each
R 37,725.92(exc. VAT)
ABB S800U MCB, 3P, 60A Curve K, 240V AC, 50 kA Breaking Capacity
  • RS stock no. 141-256
  • Mfr. Part No. 2CCS863017R0587
Each
R 7,619.97(exc. VAT)
ABB Phase Barrier for use with S6, S7, T6
  • RS stock no. 250-4521
  • Mfr. Part No. 1SDA050697R1
Each
R 1,701.03(exc. VAT)
Eaton xComfort KLV Distribution Board Enclosure
  • RS stock no. 124-772
  • Mfr. Part No. 178803 KLV-36UPP-SF
Each
R 4,170.17(exc. VAT)
ABB, XT2N MCCB 3P 25A, Breaking Capacity 65 kA, Fixed Mount
  • RS stock no. 237-6230
  • Mfr. Part No. 1SDA067073R1 XT2N 160 Ekip LSIG 25A FF
Each
R 15,966.03(exc. VAT)
Better World
Siemens, SENTRON MCCB 4P 100A, Breaking Capacity 55 kA, Fixed Mount
  • RS stock no. 209-5116
  • Mfr. Part No. 3VA2110-5HL46-0AA0
Each
R 13,204.46(exc. VAT)
Schneider Electric Vigi C120 RCD, 125A, 2 Pole, 30mA
  • RS stock no. 219-9022
  • Mfr. Part No. A9N18591
Each
R 26,947.96(exc. VAT)
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