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

1186 of 999+
Temporarily out of stock
Eaton NZM Electronic Circuit Breaker 320A NZM, 4 channels , Fixed
  • RS Stock No. 120-638
  • Mfr. Part No. 168890 NZMH3-4-A320/200-SVE
Each
$8,103.27(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT NSX Circuit breaker 2P 80A, Breaking Capacity 85 KA, Fixed Mount
  • RS Stock No. 119-217
  • Mfr. Part No. C10M2TM080
Each
$1,217.81(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT NSX Circuit breaker 2P 63A, Breaking Capacity 18 KA, Fixed Mount
  • RS Stock No. 119-219
  • Mfr. Part No. C10F2TM063
Each
$1,473.46(exc. GST)
Temporarily out of stock
ABB SMISSLINE Busbar for Smissline TP
  • RS Stock No. 246-2305
  • Mfr. Part No. 2CCF800219R0001
Each
$6.40(exc. GST)
Unavailable
ABB System Pro M Compact S200 MCB, 3P, 8A Curve K, 400V AC, 6 kA Breaking Capacity
  • RS Stock No. 746-8024
  • Mfr. Part No. 2CDS253001R0407 S203-K8
Each
$221.61(exc. GST)
In Stock
Schneider Electric Acti9 iID RCCB, 80A, 2 Pole, 300mA, Type AC, 220 → 240V ac
  • RS Stock No. 130-795
  • Mfr. Part No. A9R14280
Each
$1,223.79(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 4kA 1SDA07, 4 channels
  • RS Stock No. 259-3842
  • Mfr. Part No. 1SDA071854R1
Each
$68,318.04(exc. GST)
Temporarily out of stock
Siemens, Sentron MCCB Molded Case Circuit Breaker 4P 1kA, Breaking Capacity 35 kA, Cable Mount
  • RS Stock No. 249-131
  • Mfr. Part No. 3VA6610-6HL46-0AA0
Each
$22,334.79(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 1.25kA Ekip Dip LSI, 4 channels
  • RS Stock No. 259-3506
  • Mfr. Part No. 1SDA071472R1
Each
$14,884.29(exc. GST)
Temporarily out of stock
Schneider Electric, TCE Circuit Breaker Accessory 400 → 600A
  • RS Stock No. 119-382
  • Mfr. Part No. LV833576SP
Each
$2,204.02(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 1.6kA 1SDA07, 3 channels
  • RS Stock No. 259-4127
  • Mfr. Part No. 1SDA072237R1
Each
$20,585.52(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 100A, Breaking Capacity 25 kA, DIN Rail Mount
  • RS Stock No. 271-9556
  • Mfr. Part No. 3VA10103ED460AA0
Each
$1,263.69(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT NSX Circuit breaker 1P 40A, Breaking Capacity 25 KA, Fixed Mount
  • RS Stock No. 119-475
  • Mfr. Part No. C10N1TM040
Each
$1,154.98(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 800A Ekip G Hi-Touch LSIG, 4 channels
  • RS Stock No. 259-4630
  • Mfr. Part No. 1SDA072900R1
Each
$25,907.33(exc. GST)
In Stock
Schneider Electric Resi9 R9F2 MCB, 1P, 13A Curve B, 230V AC, 6 kA Breaking Capacity
  • RS Stock No. 212-139
  • Mfr. Part No. R9F23113
Each
$31.89(exc. GST)
Temporarily out of stock
Schneider Electric, PowerPact B Circuit breaker 4P 25A, Breaking Capacity 14 KA, Clip-On
  • RS Stock No. 119-194
  • Mfr. Part No. BDL46025LU
Each
$2,341.68(exc. GST)
In Stock
Circuit-breaker/thermal 1 A
  • RS Stock No. 577-454
  • Mfr. Part No. 106-P10-1A
Each
$23.16(exc. GST)
Temporarily out of stock
Schneider Electric Multi9 M9F1 MCB, 2P, 16A Curve D, 440V AC, 125V DC, 6 kA Breaking Capacity
  • RS Stock No. 212-129
  • Mfr. Part No. M9F12216
Each
$267.26(exc. GST)
Temporarily out of stock
Eaton Eaton Moeller NZM Undervoltage Release for use with N(S)2(-4), N(S)3(-4), NZM2(-4), NZM3(-4)
  • RS Stock No. 255-713
  • Mfr. Part No. 259495 NZM2/3-XU60AC
Each
$373.78(exc. GST)
Temporarily out of stock
Better World
ABB Emax2 Electronic Circuit Breaker 3.2kA Ekip G Touch LSIG, 3 channels
  • RS Stock No. 259-3258
  • Mfr. Part No. 1SDA071157R1
Each
$37,021.13(exc. GST)
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