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

78 of 999+
Temporarily out of stock
ABB RCBO, 6A Current Rating, 4P Poles, Type B
  • RS Stock No. 237-5203
  • Mfr. Part No. 2CSR274101R1065
Each
TWD14,672.00(exc. GST)
Temporarily out of stock
Schneider Electric Acti9 3 Phase Distribution Board, 22 Way, 125 A
  • RS Stock No. 339-357
  • Mfr. Part No. SEA9BPN12514S8
Each
TWD236,345.00(exc. GST)
Temporarily out of stock
Better World
Schneider Electric Busbar Tap-Off Unit
  • RS Stock No. 219-8901
  • Mfr. Part No. KNB32CP
Each
TWD8,774.00(exc. GST)
Temporarily out of stock
QSA Rear Cover 1P, rear side
  • RS Stock No. 245-820
  • Mfr. Part No. 1319439 QSARCOVER1P63-160
Each
TWD1,199.00(exc. GST)
Temporarily out of stock
Contactum 14 Way Steel Consumer Unit, 100A Defender
  • RS Stock No. 184-9107
  • Mfr. Part No. DD141MS
Each
TWD3,702.00(exc. GST)
In Stock
Schneider Electric, ComPacT NSX MCCB 4P 160A, Fixed Mount
  • RS Stock No. 254-6346
  • Mfr. Part No. C16F4
Each
TWD28,862.00(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 4P 100A, Fixed Mount
  • RS Stock No. 260-7471
  • Mfr. Part No. C10V42D100
Each
TWD72,635.00(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 630A, Fixed Mount
  • RS Stock No. 260-8251
  • Mfr. Part No. C63V36E630
Each
TWD280,015.00(exc. GST)
In Stock
Better World
Schneider Electric Acti 9 iC60N MCB, 2P, 16A Curve C, 100 → 130V AC, 12 → 144V DC, 6 kA Breaking Capacity
  • RS Stock No. 734-9065
  • Mfr. Part No. A9F77216
Each
TWD2,622.00(exc. GST)
Temporarily out of stock
Better World
Siemens 5SV3322 RCCB, 25A, 2 Pole, 30mA, Type B, 230V ac
  • RS Stock No. 231-8374
  • Mfr. Part No. 5SV3322-4
Each
TWD27,356.00(exc. GST)
Temporarily out of stock
ABB S801S MCB, 1P, 63A, UC-K, 250V DC, 50 kA Breaking Capacity
  • RS Stock No. 140-629
  • Mfr. Part No. 2CCS861001R1597
Each
TWD14,539.00(exc. GST)
Temporarily out of stock
Better World
Schneider Electric, ComPacT NSX MCCB 3P 50A, Fixed Mount
  • RS Stock No. 254-6279
  • Mfr. Part No. C10B3TM050
Each
TWD17,775.00(exc. GST)
In Stock
Legrand 4115 RCD, 63A, 1+N Pole, 30mA, Type AC
  • RS Stock No. 863-7751
  • Mfr. Part No. 4 115 06
Each
TWD2,407.00(exc. GST)
In Stock
ETA REX12 Electronic Circuit breaker 4A 24V REX12-T, 1 channels , DIN Rail Mount
  • RS Stock No. 175-0366
  • Mfr. Part No. REX12-TA1-107-DC24V-4A
Each
TWD1,202.00(exc. GST)
Temporarily out of stock
ABB Tmax T Undervoltage Release for use with Circuit Breaker
  • RS Stock No. 232-0163
  • Mfr. Part No. 1SDA063552R1 UVR T7-M-X1 230VAC/DC
Each
TWD13,069.00(exc. GST)
In Stock
Phoenix Contact Surge Protector, 40kA, DIN Rail Mount
  • RS Stock No. 201-5576
  • Mfr. Part No. 2907876
Each
TWD9,099.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 100A, Breaking Capacity 150 kA, Fixed Mount
  • RS Stock No. 270-3623
  • Mfr. Part No. 3VA2010-8KP42-0AA0
Each
TWD92,861.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 63A
  • RS Stock No. 209-7003
  • Mfr. Part No. 3VA1163-1AA46-0AA0
Each
TWD16,576.00(exc. GST)
Temporarily out of stock
Eaton Eaton xEnergy Main Partitions for use with Circuit Breaker
  • RS Stock No. 243-108
  • Mfr. Part No. 184645 XPRCCH03506
Each
TWD1,617.00(exc. GST)
Temporarily out of stock
Eaton Eaton Moeller Series NZM Terminal Element for use with N(S)1, NZM1, PN1
  • RS Stock No. 254-936
  • Mfr. Part No. 260019 NZM1-XKS
Each
TWD1,215.00(exc. GST)
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