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

222 of 999+
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 1kA Ekip Touch LSIG, 3 channels
  • RS Stock No. 259-4063
  • Mfr. Part No. 1SDA072146R1
Each
TWD168,198.00(exc. GST)
In Stock
Better World
Schneider Electric, PowerLogic, 200A, Energy Sensor, 3VA, Wireless
  • RS Stock No. 256-4051
  • Mfr. Part No. A9MEM1590
Each
TWD45,718.00(exc. GST)
In Stock
Finder Busbar, 10 A - 250V
  • RS Stock No. 666-7996
  • Mfr. Part No. 093.08
Each
TWD77.00(exc. GST)
In Stock
ETA Thermal Circuit Breaker - 1616 Single Pole 32V Voltage Rating, 7.5A Current Rating
  • RS Stock No. 729-2720
  • Mfr. Part No. 1616-21-7.5A
Each
TWD575.00(exc. GST)
Temporarily out of stock
Phoenix Contact Surge Protector, DIN Rail Mount
  • RS Stock No. 265-7499
  • Mfr. Part No. 2804678
Each
TWD5,263.00(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB 4P 600A, Breaking Capacity 35 kA, Fixed Mount
  • RS Stock No. 249-816
  • Mfr. Part No. 3VA6560-5KT42-2AA0
Each
TWD266,669.00(exc. GST)
In Stock
Europa EUC2P EUC MCB, 2P, 40A Curve C, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 849-6566
  • Mfr. Part No. EUC2P40C
Each
TWD729.00(exc. GST)
Temporarily out of stock
Legrand 9 Way Plastic Consumer Unit, 32A, IP44, IP66, IP67 Hypra
  • RS Stock No. 665-4593
  • Mfr. Part No. 0 598 48
Each
TWD35,734.00(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 600A, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 249-478
  • Mfr. Part No. 3VA6560-7KT42-2AA0
Each
TWD310,731.00(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 160A, Fixed Mount
  • RS Stock No. 260-7857
  • Mfr. Part No. C25B32D160
Each
TWD55,012.00(exc. GST)
Currently unavailable
Schneider Electric EasyPact Electronic Circuit Breaker 40A, Fixed
  • RS Stock No. 122-407
  • Mfr. Part No. LV510663
Each
TWD10,588.00(exc. GST)
Temporarily out of stock
Eaton NZM Electronic Circuit Breaker 70A NZM, 4 channels , Fixed
  • RS Stock No. 121-915
  • Mfr. Part No. 153387 NZMN2-4-AF70-BT-NA
Each
TWD52,480.00(exc. GST)
Temporarily out of stock
SENTRON Draw-Out Unit for use with 3VA61/62 Series
  • RS Stock No. 263-764
  • Mfr. Part No. 3VA9144-0KD00
1 Kit
TWD29,196.00(exc. GST)
In Stock
RS PRO MCB, 1P, 6A Curve B, 240 → 415V AC, 6 kA Breaking Capacity
  • RS Stock No. 265-0164
Each
TWD284.00(exc. GST)
In Stock
Better World
Schneider Electric Multi 9 MCB, 2P, 10A Curve C, 10 kA Breaking Capacity
  • RS Stock No. 219-9126
  • Mfr. Part No. M9F22210
Each
TWD5,155.00(exc. GST)
Temporarily out of stock
Better World
Schneider Electric RCBO, 32A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type C, Acti9 Range
  • RS Stock No. 238-3356
  • Mfr. Part No. A9DX2632
Each
TWD16,814.00(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 2kA 1SDA07, 4 channels
  • RS Stock No. 259-3750
  • Mfr. Part No. 1SDA071735R1
Each
TWD566,805.00(exc. GST)
In Stock
Better World
Siemens 5SV3 RCCB, 16A, 2 Pole, 10mA, Type A
  • RS Stock No. 124-7725
  • Mfr. Part No. 5SV3111-6
Each
TWD7,287.00(exc. GST)
Temporarily out of stock
Better World
Siemens RCBO, 13A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type B, Sentron Range
  • RS Stock No. 243-6153
  • Mfr. Part No. 5SU1324-6KX13
Each
TWD6,963.00(exc. GST)
Temporarily out of stock
ABB Cover for use with SACE Tmax XT
  • RS Stock No. 192-0927
  • Mfr. Part No. 1SDA066666R1
Each
TWD1,785.00(exc. GST)
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