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

35874 Products showing for Circuit Breakers

55 of 999+
Eaton Busbar Adapter, 690V
  • RS Stock No. 250-9761
  • Mfr. Part No. 142528 BBA0K-32
Each
TWD1,878.00(exc. GST)
Phoenix Contact 3 Phase Surge Protector, DIN Rail Mount
  • RS Stock No. 207-2762
  • Mfr. Part No. 2907390
Each
TWD28,358.00(exc. GST)
Better World
Schneider Electric Acti 9 A9N1 MCB, 1P, 100A Curve C
  • RS Stock No. 219-8291
  • Mfr. Part No. A9N18447
Each
TWD5,335.00(exc. GST)
Better World
Siemens SENTRON Wire Connector for use with 3VA5
  • RS Stock No. 269-7096
  • Mfr. Part No. 3VA9134-0JB10
Each (In a Pack of 4)
TWD327.80(exc. GST)
Siemens SENTRON 5SJ4 MCB, 1P, 15A Curve D, 14 kA Breaking Capacity
  • RS Stock No. 202-7072
  • Mfr. Part No. 5SJ4118-8HG41
Each
TWD2,236.00(exc. GST)
Better World
Siemens SENTRON 3VA1 MCB, 2P, 32A
  • RS Stock No. 224-7845
  • Mfr. Part No. 3VA1132-5ED26-0AA0
Each
TWD15,600.00(exc. GST)
ABB S800S MCB, 4P, 63A Curve C, 240V AC, 50 kA Breaking Capacity
  • RS Stock No. 141-270
  • Mfr. Part No. 2CCS864001R0634
Each
TWD36,395.00(exc. GST)
Eaton xEffect RCCB, 25A, 2 Pole, 100mA, Type F, 240V ac
  • RS Stock No. 248-933
  • Mfr. Part No. 187372 FRCMM-25/2/01-G/F
Each
TWD9,480.00(exc. GST)
Siemens 5SM26 RCCB, 100A, 4 Pole, 300mA, Type A, 400V
  • RS Stock No. 328-485
  • Mfr. Part No. 5SM2647-6
Each
TWD12,261.00(exc. GST)
Better World
Schneider Electric Linergy 3 Phase Busbar, 690V, 54mm Pitch
  • RS Stock No. 608-8258
  • Mfr. Part No. GV2G554
Each
TWD943.00(exc. GST)
Eaton IZMX40N4-V40W-1 Electronic Circuit Breaker 4kA , DIN Rail
  • RS Stock No. 132-888
  • Mfr. Part No. 183757 IZMX40N4-V40W-1
Each
TWD1,417,789.00(exc. GST)
Better World
Siemens SENTRON 3VA1 MCB, 1P, 25A
  • RS Stock No. 224-7831
  • Mfr. Part No. 3VA1125-4ED16-0AA0
Each
TWD7,471.00(exc. GST)
Better World
Siemens Sentron 5SY4 MCB, 1+N, 40A Curve C, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 124-3216
  • Mfr. Part No. 5SY4540-7
Each
TWD2,869.00(exc. GST)
Better World
Schneider Electric Acti 9 C120H MCB, 4P, 125A Curve C, 440V AC, 500V DC, 15 kA, 30 kA Breaking Capacity
  • RS Stock No. 776-3036
  • Mfr. Part No. A9N18481
Each
TWD27,133.00(exc. GST)
ABB MCCB 3P 320A, Fixed Mount
  • RS Stock No. 250-4118
  • Mfr. Part No. 1SDA054384R1
Each
TWD188,491.00(exc. GST)
Better World
ABB System Pro M Compact S200 MCB, 2P, 8A Curve K, 400V AC, 110V DC, 6 kA Breaking Capacity
  • RS Stock No. 746-7980
  • Mfr. Part No. 2CDS252001R0407 S202-K8
Each
TWD2,726.00(exc. GST)
Eaton Trip Unit for use with IZMX…
  • RS Stock No. 239-925
  • Mfr. Part No. 184951 IZMX-PXRV-AM-1
Each
TWD165,365.00(exc. GST)
Eaton xEffect MCB, 1P, 6A Curve B, 240V AC, 48V DC, 10 kA Breaking Capacity
  • RS Stock No. 922-6967
  • Mfr. Part No. 278529 FAZ-B6/1
Each
TWD917.00(exc. GST)
Eaton RCCB, 100A, 2 Pole, 30mA, Type AC, 230V ac
  • RS Stock No. 227-0687
  • Mfr. Part No. 114108 PFGM-100/2/03/-
Each
TWD13,588.00(exc. GST)
Better World
Siemens SENTRON 5SL4 MCB, 1+N, 32A Curve C, 230V AC, 72V DC
  • RS Stock No. 209-7487
  • Mfr. Part No. 5SL4532-7
Each
TWD2,736.00(exc. GST)
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