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

1712 of 999+
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 63A, Breaking Capacity 200 kA, Fixed Mount
  • RS Stock No. 270-4708
  • Mfr. Part No. 3VA2163-0MS32-0AA0
Each
TWD31,798.00(exc. GST)
Temporarily out of stock
Eaton xEffect FAZ MCB, 1P, 12A Curve C, 230V AC, 48V DC, 10 kA Breaking Capacity
  • RS Stock No. 258-995
  • Mfr. Part No. 278558 FAZ-C12/1
Each
TWD1,694.00(exc. GST)
Temporarily out of stock
ABB S800S MCB, 3P, 50A Curve C, 240V AC, 50 kA Breaking Capacity
  • RS Stock No. 140-661
  • Mfr. Part No. 2CCS863001R0504
Each
TWD28,555.00(exc. GST)
Temporarily out of stock
Contactum 10 Way Steel Consumer Unit, 100A Defender
  • RS Stock No. 184-9164
  • Mfr. Part No. DD101SPMS-P01
Each
TWD12,225.00(exc. GST)
Temporarily out of stock
Eaton Eaton Distribution Parts End Cap for use with Busbar, Z-BB/UL
  • RS Stock No. 244-731
  • Mfr. Part No. 171145 Z-ECUL
1 Pack of 10
TWD493.00(exc. GST)
Temporarily out of stock
Phoenix Contact 3 Phase Surge Protector, DIN Rail Mount
  • RS Stock No. 207-2798
  • Mfr. Part No. 2909590
Each
TWD11,448.00(exc. GST)
Temporarily out of stock
Eaton RCBO, 16A Current Rating, 2P Poles, 100mA Trip Sensitivity, Type A, Type C, FRBmM Range
  • RS Stock No. 123-671
  • Mfr. Part No. 170832 FRBMM-C16/2/01-LIA
Each
TWD5,580.00(exc. GST)
Temporarily out of stock
Better World
Siemens, 0AA0 MCCB 4P 32A, Breaking Capacity 36 kA, Fixed Mount
  • RS Stock No. 211-6007
  • Mfr. Part No. 3VA1132-4EE42-0AA0
Each
TWD19,262.00(exc. GST)
Temporarily out of stock
Better World
Schneider Electric Straight Busbar Trunking, 3m, 25A, Canalis KBB Series
  • RS Stock No. 211-0371
  • Mfr. Part No. KBB25ED4303TW
Each
TWD6,496.00(exc. GST)
Temporarily out of stock
Better World
ABB, XT4L MCCB 4P 160A, Fixed Mount
  • RS Stock No. 236-6732
  • Mfr. Part No. 1SDA068389R1 XT4L 160 TMA 160A 3P+N FF
Each
TWD50,391.00(exc. GST)
Temporarily out of stock
Bourns Single, Three Phase Surge Protector, 50kA, 1kV, DIN Rail Mount
  • RS Stock No. 287-9617
  • Mfr. Part No. 1250A-1S-230
Each (In a Box of 100)
TWD3,524.60(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 100A, Breaking Capacity 150 kA, Fixed Mount
  • RS Stock No. 268-450
  • Mfr. Part No. 3VA6110-8KM41-2AA0
Each
TWD124,905.00(exc. GST)
Temporarily out of stock
nVent SCHROFF 69001 Busbar, 10.16mm Pitch
  • RS Stock No. 277-3878
  • Mfr. Part No. 69001-073
Each
TWD1,411.00(exc. GST)
Temporarily out of stock
xEnergy Safety Ci Distribution Board Enclosure, 3 Way, 400 A
  • RS Stock No. 252-774
  • Mfr. Part No. 194573 CI44-S60-400/3-3XNH00
Each
TWD26,169.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 63A, Breaking Capacity 85 kA, Fixed Mount
  • RS Stock No. 270-3845
  • Mfr. Part No. 3VA2063-6JP42-0AA0
Each
TWD136,912.00(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 1kA Ekip Dip LSI, 4 channels
  • RS Stock No. 259-3585
  • Mfr. Part No. 1SDA071562R1
Each
TWD315,214.00(exc. GST)
In Stock
Blanking Strip for use with Bf Flat Distribution Board, Ci Insulated Distribution Board, Ika Industrial Distribution
  • RS Stock No. 247-318
  • Mfr. Part No. 178979 BS-12MB-GY
1 Pack of 10
TWD1,256.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 100A, Breaking Capacity 110 kA, Fixed Mount
  • RS Stock No. 270-3577
  • Mfr. Part No. 3VA2010-7HN36-0AA0
Each
TWD86,601.00(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 6.3kA Ekip Touch LSIG, 3 channels
  • RS Stock No. 259-3371
  • Mfr. Part No. 1SDA071296R1
Each
TWD1,734,397.00(exc. GST)
In Stock
Siemens SENTRON Undervoltage Release for use with 3VA1, 3VA20-3VA25
  • RS Stock No. 210-3531
  • Mfr. Part No. 3VA9908-0BB20
Each
TWD6,537.00(exc. GST)
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