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

208 of 999+
Temporarily out of stock
Legrand Busbar Connector
  • RS Stock No. 266-3284
  • Mfr. Part No. 0 373 65
1 Box of 100
$274.30(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 1kA Ekip Dip LSI, 4 channels
  • RS Stock No. 259-3460
  • Mfr. Part No. 1SDA071413R1
Each
$13,583.37(exc. GST)
In Stock
Schneider Electric, ComPacT MCCB 4P 50A, Fixed Mount
  • RS Stock No. 288-7178
  • Mfr. Part No. C106TM050
Each
$626.58(exc. GST)
Temporarily out of stock
Legrand Single Phase Busbar, 17.7mm Pitch
  • RS Stock No. 266-3718
  • Mfr. Part No. 404937
1 Box of 10
$1,356.54(exc. GST)
In Stock
ETA Thermal Circuit Breaker - 3120-N 5 Pole 50 V DC, 240 V AC Voltage Rating, 12A Current Rating
  • RS Stock No. 210-2112
  • Mfr. Part No. 3120-N554-P7T1-W19DG4-12A
Each
$76.89(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 1.6kA 1SDA07, 4 channels
  • RS Stock No. 259-3666
  • Mfr. Part No. 1SDA071639R1
Each
$25,795.85(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 2P 700A, Breaking Capacity 35 kA, Fixed Mount
  • RS Stock No. 257-696
  • Mfr. Part No. 3VA5570-5EC62-0AA0
Each
$8,588.57(exc. GST)
Temporarily out of stock
Better World
Siemens SIRIUS Electronic Circuit Breaker 50A 3RV2, 3 channels , DIN Rail Mount
  • RS Stock No. 160-140
  • Mfr. Part No. 3RV2342-4HC10
Each
$1,212.76(exc. GST)
Temporarily out of stock
Better World
ABB Emax2 Electronic Circuit Breaker 800A Ekip Touch LI, 3 channels
  • RS Stock No. 259-9900
  • Mfr. Part No. 1SDA070744R1
Each
$8,570.96(exc. GST)
Temporarily out of stock
Hager BDD RCCB, 40A, 1P+N Pole, 30mA, Type F
  • RS Stock No. 602-045
  • Mfr. Part No. BDD240F
Each
$859.68(exc. GST)
Temporarily out of stock
Siemens SENTRON External Current Sensor
  • RS Stock No. 277-0706
  • Mfr. Part No. 3WA9111-0AA32
Each
$2,344.74(exc. GST)
Temporarily out of stock
Schneider Electric, ComPact MCCB Molded Case Circuit Breaker 3P 1.25kA, Fixed Mount
  • RS Stock No. 232-3149
  • Mfr. Part No. 33564
Each
$10,947.00(exc. GST)
Currently unavailable
Schneider Electric EasyPact Electronic Circuit Breaker 32A, Plug In
  • RS Stock No. 122-457
  • Mfr. Part No. LV510332P
Each
$315.14(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 250A, Breaking Capacity 35 kA, Fixed Mount
  • RS Stock No. 260-557
  • Mfr. Part No. 3VA6325-5JP41-0AA0
Each
$9,846.95(exc. GST)
In Stock
Hager NFT MCB, 1+N, 16A, 240 → 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 144-4742
  • Mfr. Part No. NFT716
Each
$179.22(exc. GST)
In Stock
Legrand VX 1 Phase Busbar, 230V, 125mm Pitch
  • RS Stock No. 786-5683
  • Mfr. Part No. 4 050 01
Each
$103.98(exc. GST)
Temporarily out of stock
Better World
Schneider Electric Acti9 iTG40 RCD, 40A, 1 Pole, 300mA, Type A-SI, 400V ac
  • RS Stock No. 239-9996
  • Mfr. Part No. A9Y16640
Each
$1,015.52(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 1kA Ekip Dip LSI, 3 channels
  • RS Stock No. 259-4070
  • Mfr. Part No. 1SDA072153R1
Each
$12,779.89(exc. GST)
Currently unavailable
Schneider Electric EasyPact Electronic Circuit Breaker 50A, Plug In
  • RS Stock No. 122-476
  • Mfr. Part No. LV510454P
Each
$437.93(exc. GST)
Currently unavailable
Schneider Electric EasyPact Electronic Circuit Breaker 25A, Plug In
  • RS Stock No. 122-355
  • Mfr. Part No. LV510481P
Each
$420.40(exc. GST)
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