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

23551 Products showing for Circuit Breakers

10 of 999+
Better World
Siemens Sentron 5SY7 MCB, 1P, 500mA Curve C, 230V AC, 15 kA Breaking Capacity
  • RS Stock No. 622-0187
  • Mfr. Part No. 5SY7105-7
Each
$72.46(exc. GST)
ABB TMAX XT1B MCB, 3P, 160A, 690V AC, 500V DC, 25 kA Breaking Capacity
  • RS Stock No. 192-0888
  • Mfr. Part No. 66809
Each
$729.21(exc. GST)
Murrelektronik Limited Mico Pro Link Module for use with Circuit Breaker
  • RS Stock No. 284-8051
  • Mfr. Part No. 9000-41000-0000002
Each
$50.40(exc. GST)
Better World
Schneider Electric, Power Tag, 2mA, POWERTAG, 2W, Wireless
  • RS Stock No. 248-3709
  • Mfr. Part No. A9XMC1D3
Each
$230.05(exc. GST)
Phoenix Contact Thermal Circuit Breaker - TCP 2A Single Pole 65 V dc, 250V ac Voltage Rating On Base Element, 2A
  • RS Stock No. 801-6902
  • Mfr. Part No. 0712217
Each
$50.22(exc. GST)
Hager CFH RCCB, 40A, 3P+N Pole, 300mA, Type A-HI, 230 → 400V ac
  • RS Stock No. 597-934
  • Mfr. Part No. CFH840F
Each
$748.53(exc. GST)
Phoenix Contact Electronic Device Circuit Breaker Electronic Circuit breaker 4A 24V CBMC, 1 channels , DIN Rail Mount
  • RS Stock No. 207-2807
  • Mfr. Part No. 2910410
Each
$330.98(exc. GST)
ABB Earth & Neutral Terminal Bar for use with MCB
  • RS Stock No. 232-0024
  • Mfr. Part No. GJI2320072R0017 SZ-KLB 16
1 Box of 1
$25.95(exc. GST)
Better World
ABB System Pro M Compact S200 MCB, 2P, 6A Curve D, 400V AC, 125V DC, 10 kA Breaking Capacity
  • RS Stock No. 746-7854
  • Mfr. Part No. 2CDS252001R0061 S202-D6
Each
$107.61(exc. GST)
Better World
Schneider Electric Acti 9 C120N MCB, 2P, 125A Curve C, 440V AC, 250V DC, 10 kA, 20 kA Breaking Capacity
  • RS Stock No. 776-3067
  • Mfr. Part No. A9N18363
Each
$324.58(exc. GST)
Schneider Electric SWBD 3 Phase Distribution Board, 36 Way, 250 A
  • RS Stock No. 230-6813
  • Mfr. Part No. MD236D32
Each
$4,533.30(exc. GST)
Schneider Electric RCBO, 10A Current Rating, 1P Poles, 30mA Trip Sensitivity, Acti 9 Range
  • RS Stock No. 230-6645
  • Mfr. Part No. A9D61810
Each
$117.83(exc. GST)
ifm electronic Electronic Circuit Breaker 4A 24V DF, 2 channels
  • RS Stock No. 100-572
  • Mfr. Part No. DF1214
Each
$147.85(exc. GST)
Phoenix Contact Surge Protector, 20kA, DIN Rail Mount
  • RS Stock No. 207-2731
  • Mfr. Part No. 2906798
Each
$221.71(exc. GST)
Phoenix Contact Busbar, 6.2mm Pitch
  • RS Stock No. 627-3406
  • Mfr. Part No. 3030271
Each (In a Pack of 5)
$10.736(exc. GST)
RS PRO Thermal Circuit Breaker -, 16A Current Rating
  • RS Stock No. 774-0039
Each
$22.47(exc. GST)
Schneider Electric Resi9 R9PF MCB, 3P, 16A, 400V AC, 3000 A Breaking Capacity
  • RS Stock No. 276-8967
  • Mfr. Part No. R9PFC716
Each
$203.41(exc. GST)
ABB High Performance S800S MCB, 1P, 100A Curve C, 400V AC, 250V DC, 50 kA Breaking Capacity
  • RS Stock No. 435-358
  • Mfr. Part No. 2CCG001227R0001
Each
$128.58(exc. GST)
Schneider Electric RCBO, 20A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type C
  • RS Stock No. 341-549
  • Mfr. Part No. A9D27220
Each
$2,149.60(exc. GST)
Hager BP RCD, 63A, 2 Pole, 300mA, Type AC
  • RS Stock No. 144-4885
  • Mfr. Part No. BP264
Each
$954.20(exc. GST)
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