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

71 of 999+
Temporarily out of stock
Siemens SENTRON 3 Phase Busbar, 400V
  • RS Stock No. 328-330
  • Mfr. Part No. 5ST3785-0
Each
$89.89(exc. GST)
Temporarily out of stock
ABB AC Switch Disconnectors Accessories Earth & Neutral Terminal Bar for use with Low-Voltage Switch Technology
  • RS Stock No. 259-9721
  • Mfr. Part No. 1SCA105718R1001
Each
$19.92(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 600A, Breaking Capacity 65 kA, Fixed Mount
  • RS Stock No. 249-586
  • Mfr. Part No. 3VA6560-6KT42-0AA0
Each
$15,585.01(exc. GST)
Temporarily out of stock
Legrand TX³ - MCB 6000 MCB, 3P, 50A Curve C, 230V AC
  • RS Stock No. 249-5891
  • Mfr. Part No. 4 035 50
Each
$89.20(exc. GST)
Temporarily out of stock
Siemens SENTRON Busbar
  • RS Stock No. 265-556
  • Mfr. Part No. 8US1215-5CS10
Each
$202.21(exc. GST)
In Stock
Better World
Schneider Electric, ComPacT NSX MCCB 4P 100A, Fixed Mount
  • RS Stock No. 254-6309
  • Mfr. Part No. C11B44V100L
Each
$3,588.84(exc. GST)
Temporarily out of stock
Schneider Electric Acti9 Acti9 Reflex MCB, 4P, 10A Curve B, 230V AC, 24V DC, 10 KA Breaking Capacity
  • RS Stock No. 205-168
  • Mfr. Part No. A9C61410
Each
$2,193.53(exc. GST)
In Stock
Schneider Electric, ComPacT MCCB 3P 250A, Fixed Mount
  • RS Stock No. 260-7931
  • Mfr. Part No. C25N3
Each
$2,531.93(exc. GST)
In Stock
RS PRO Single Phase Industrial Surge Protector, 40kA, 1.35kV, DIN Rail Mount
  • RS Stock No. 101-791
Each
$540.41(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 250A, Breaking Capacity 150 kA, Fixed Mount
  • RS Stock No. 260-512
  • Mfr. Part No. 3VA6325-8HM41-0AA0
Each
$10,360.11(exc. GST)
Temporarily out of stock
Better World
Schneider Electric TeSys TeSyS GV MCB, 3P, 7A, 690V AC, 50 kA Breaking Capacity
  • RS Stock No. 175-1428
  • Mfr. Part No. GV4L07N
Each
$1,420.42(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 150A, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 269-933
  • Mfr. Part No. 3VA6115-7JP31-0AA0
Each
$5,538.85(exc. GST)
Temporarily out of stock
Schneider Electric Acti9 3 Phase Distribution Board, 8 Way, 250 A
  • RS Stock No. 339-831
  • Mfr. Part No. SEA9BPN8
Each
$1,099.79(exc. GST)
Temporarily out of stock
Eaton Eaton xEnergy Main Busbar Support for use with Busbar
  • RS Stock No. 231-499
  • Mfr. Part No. 110268 XBSB163-STS
Each
$419.13(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB 4P 400A, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 257-301
  • Mfr. Part No. 3VA5340-7GC41-0AA0
Each
$13,011.41(exc. GST)
In Stock
Better World
ABB Compact Home SH200 MCB, 3P, 6A Curve C, 440V AC, 6 kA Breaking Capacity
  • RS Stock No. 539-8330
  • Mfr. Part No. 2CDS213001R0064 SH203-C6
Each
$115.04(exc. GST)
Temporarily out of stock
Better World
Siemens SENTRON Electronic Circuit Breaker 160A 3VA2, 4 channels
  • RS Stock No. 156-646
  • Mfr. Part No. 3VA2216-5JP42-0AA0
Each
$6,123.32(exc. GST)
In Stock
Schneider Electric Acti9 SE10 MCB Mini Circuit Breaker, 1P, 16A Curve C, 415V AC, 10000 A Breaking Capacity
  • RS Stock No. 339-307
  • Mfr. Part No. SE10C116
Each
$57.48(exc. GST)
In Stock
Better World
Schneider Electric Surge Protector, 24 → 250V dc, Clip-On Mount
  • RS Stock No. 817-5323
  • Mfr. Part No. LAD4DDL
Each
$41.80(exc. GST)
Temporarily out of stock
Schneider Electric, PowerPact MCCB 2P 25A, Breaking Capacity 18 kA, Clip-On
  • RS Stock No. 345-253
  • Mfr. Part No. BDF26025
Each
$1,242.98(exc. GST)
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