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

23559 Products showing for Circuit Breakers

26 of 999+
ETA Thermal Circuit Breaker - EM12-T 24V Voltage Rating DIN Rail Mount, 40A Current Rating
  • RS Stock No. 175-0362
  • Mfr. Part No. EM12-T01-001-DC24V-40A
Each
$64.35(exc. GST)
ETA ESX10 Electronic Circuit breaker 1A 24V ESX10-T, 1 channels , Plug-In Mounting
  • RS Stock No. 210-2123
  • Mfr. Part No. ESX10-TA-100-DC24V-1A-E
Each
$218.55(exc. GST)
HPM C16 Electronic Circuit Breaker 16A, 1 channels , Plug In Type C
  • RS Stock No. 273-1127
  • Mfr. Part No. CDCB116
Each
$42.72(exc. GST)
ETA ESX10 Electronic Circuit breaker 6A 24V ESX10-T, 1 channels , Plug-In Mounting
  • RS Stock No. 210-2127
  • Mfr. Part No. ESX10-TA-100-DC24V-6A-E
Each
$219.56(exc. GST)
Phoenix Contact Thermal Circuit Breaker - TCP 250V ac Voltage Rating On Base Element, 5A Current Rating
  • RS Stock No. 557-491
  • Mfr. Part No. 1538622
1 Pack of 20
$1,944.33(exc. GST)
Siemens SENTRON 5SY7 MCB, 1P, 20A Curve D, 400V AC, 60V DC, 25 kA Breaking Capacity
  • RS Stock No. 610-535
  • Mfr. Part No. 5SY7120-8
Each
$102.20(exc. GST)
Schneider Electric Acti 9 Padlock Device for use with Circuit Breaker
  • RS Stock No. 230-6638
  • Mfr. Part No. A9A26380
Each
$64.13(exc. GST)
Better World
Schneider Electric Compact NSX Connecting Terminals for use with Compact NSX circuit breaker
  • RS Stock No. 211-2640
  • Mfr. Part No. LV429248
Each
$305.38(exc. GST)
Eaton, xEnergy MCCB 3P 80A, Breaking Capacity 25 kA
  • RS Stock No. 454-8067
  • Mfr. Part No. 259078 NZMB1-A80
Each
$501.02(exc. GST)
ABB Terminal bar
  • RS Stock No. 289-1637
  • Mfr. Part No. M125020000
Each
$5.13(exc. GST)
Siemens ALPHA Distribution Board
  • RS Stock No. 629-385
  • Mfr. Part No. 8GK1383-2KK53
Each
$2,445.66(exc. GST)
Eaton IKA Standard Distribution Board Distribution Board
  • RS Stock No. 125-765
  • Mfr. Part No. 174209 IKA-1/18-OT
Each
$191.72(exc. GST)
Better World
ABB System Pro M Compact S200M MCB, 2P, 13A Curve C, 440V AC, 125V DC, 10 kA Breaking Capacity
  • RS Stock No. 132-138
  • Mfr. Part No. 2CDS272001R0134 S202M-C13
Each
$144.74(exc. GST)
Better World
ABB System Pro M Compact S200 MCB, 1P, 1A Curve C, 230V AC, 72V DC, 6 kA Breaking Capacity
  • RS Stock No. 746-7646
  • Mfr. Part No. 2CDS251001R0014 S201-C1
Each
$41.73(exc. GST)
Better World
Siemens, SENTRON MCCB 4P 63A, Breaking Capacity 55 kA
  • RS Stock No. 209-6899
  • Mfr. Part No. 3VA2063-5HL42-0AA0
Each
$1,456.75(exc. GST)
Better World
Schneider Electric 24V ac/dc Remote Tripping Device Circuit Trip for use with LR3D Series, LRD Series
  • RS Stock No. 744-6961
  • Mfr. Part No. LAD703B
Each
$127.97(exc. GST)
Phoenix Contact Mounting Base for use with CB Series
  • RS Stock No. 768-1139
  • Mfr. Part No. 2800929
Each
$40.98(exc. GST)
Schneider Electric RCBO, 20A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type B, Acti9 Range
  • RS Stock No. 654-738
  • Mfr. Part No. A9DH3620
Each
$593.63(exc. GST)
Better World
Schneider Electric 250V ac Push Button Push Button
  • RS Stock No. 790-9181
  • Mfr. Part No. A9E18033
Each
$163.93(exc. GST)
ETA Thermal Circuit Breaker - 2 5700 Single Pole 250V Voltage Rating Panel Mount, 12A Current Rating
  • RS Stock No. 729-2767
  • Mfr. Part No. 2-5700-IG2-P10-DD-000040-12A
Each
$88.09(exc. GST)
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