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

23782 Products showing for Circuit Breakers

14 of 999+
Limited stock
ETA Thermal Circuit Breaker - 2-5700 Single Pole 250V Voltage Rating Panel Mount, 15A Current Rating
  • RS Stock No. 405-9157
  • Mfr. Part No. 2-5700-IG1-P10-DD-000040-15A
Each
$50.44(exc. GST)
In Stock
RS PRO Industrial Surge Protector, 2000A, 70 V, DIN Rail Mount
  • RS Stock No. 101-781
Each
$194.67(exc. GST)
Temporarily out of stock
Hager BDC RCCB, 125A, 4P Pole, 30mA, Type AC
  • RS Stock No. 602-057
  • Mfr. Part No. BDC480E
Each
$1,665.73(exc. GST)
In Stock
Better World
Schneider Electric, ComPacT New Generation Circuit breaker 3P 63A, Breaking Capacity 50 kA, Fixed Mount
  • RS Stock No. 254-6298
  • Mfr. Part No. C10N3TM063
Each
$1,115.28(exc. GST)
Temporarily out of stock
HENSEL ENYMOD Distribution Board
  • RS Stock No. 117-807
  • Mfr. Part No. Mi 1683
Each
$1,456.04(exc. GST)
Temporarily out of stock
HENSEL ENYMOD Distribution Board
  • RS Stock No. 117-740
  • Mfr. Part No. FP MP 20
Each
$88.12(exc. GST)
Temporarily out of stock
Bourns Surge Protector, 50kA, 4kV, DIN Rail Mount
  • RS Stock No. 287-9648
  • Mfr. Part No. 1420A-PV-1500-Y
Each (In a Box of 96)
$398.292(exc. GST)
Temporarily out of stock
Eaton 1 Phase Industrial Surge Protection, 15kA, 277V ac, Flange Mount Mount
  • RS Stock No. 236-5201
  • Mfr. Part No. LS15K-KP30-277V-P
Each (In a Box of 5)
$81.818(exc. GST)
In Stock
Better World
Schneider Electric Acti 9 IC60L MCB, 1P, 10A Curve K, 230V AC, 72V DC, 20 kA, 15 kA Breaking Capacity
  • RS Stock No. 212-0143
  • Mfr. Part No. A9F95110
Each
$78.12(exc. GST)
Limited stock
Legrand HX 1 Phase Busbar, 400V, 17.7mm Pitch
  • RS Stock No. 731-9433
  • Mfr. Part No. 4 049 26
Each
$12.72(exc. GST)
In Stock
Schneider Electric Acti 9 MCB, 3P, 2.5A Curve K
  • RS Stock No. 247-1715
  • Mfr. Part No. 21106
Each
$399.21(exc. GST)
In Stock
ETA Thermal Circuit Breaker - 3120-N 2 Pole 50 V DC, 240 V AC Voltage Rating, 16A Current Rating
  • RS Stock No. 210-2068
  • Mfr. Part No. 3120-N521-H7T1-W01D-16A
Each
$78.55(exc. GST)
Temporarily out of stock
Hager Hager NSN Circuit Breaker, 4P, 10A Curve D, 415V AC, 25 kA Breaking Capacity
  • RS Stock No. 599-723
  • Mfr. Part No. NSN410
Each
$776.00(exc. GST)
In Stock
Better World
Schneider Electric Acti 9 C60H-DC MCB, 1P, 6A Curve C, 250V DC
  • RS Stock No. 772-1502
  • Mfr. Part No. A9N61506
Each
$103.74(exc. GST)
In Stock
Better World
Schneider Electric Acti 9 1 Phase Busbar, 415V ac, 18mm Pitch
  • RS Stock No. 776-2718
  • Mfr. Part No. A9XPH124
Each
$130.61(exc. GST)
In Stock
Phoenix Contact PTCB Electronic Circuit Breaker 8A 24V PTCB, 1 channels , DIN Rail Type E
  • RS Stock No. 535-869
  • Mfr. Part No. 1388391
Each
$81.31(exc. GST)
Temporarily out of stock
HENSEL ENYBOARD Distribution Board, 63 A
  • RS Stock No. 117-078
  • Mfr. Part No. KV 8236
Each
$381.52(exc. GST)
In Stock
ETA Thermal Circuit Breaker - 2 5700 Single Pole 250V Voltage Rating Panel Mount, 20A Current Rating
  • RS Stock No. 729-2773
  • Mfr. Part No. 2-5700-IG2-P10-DD-000040-20A
Each
$67.76(exc. GST)
Temporarily out of stock
Hager RCBO, 16A Current Rating, 1P + N Poles, 30mA Trip Sensitivity, Type C
  • RS Stock No. 597-993
  • Mfr. Part No. ADH823F
Each
$620.31(exc. GST)
Temporarily out of stock
Hager Hager NFN Circuit Breaker, 1P, 4A Curve C, 230 → 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 599-907
  • Mfr. Part No. NFN104
Each
$107.69(exc. GST)
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