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

23542 Products showing for Circuit Breakers

83 of 999+
ABB Emax2 Electronic Circuit Breaker 3.2kA 1SDA07, 4 channels
  • RS Stock No. 259-3783
  • Mfr. Part No. 1SDA071789R1
Each
$45,830.33(exc. GST)
Eaton Eaton Moeller NZM Rotary Handle for use with N(S)3(-4), NZM3(-4), PN3(-4)
  • RS Stock No. 255-548
  • Mfr. Part No. 260129 NZM3-XDV
Each
$260.95(exc. GST)
Siemens SENTRON Connection Unit for use with Circuit Breaker 3WL10 / 3VA27
  • RS Stock No. 266-699
  • Mfr. Part No. 3VW9011-0AN33
1 Kit
$558.37(exc. GST)
Better World
Schneider Electric TeSys Thermal Circuit Breaker - GV4PB 3 Pole 690V ac Voltage Rating, 115A Current Rating
  • RS Stock No. 209-5323
  • Mfr. Part No. GV4PB115N
Each
$1,324.41(exc. GST)
Siemens ALPHA Distribution Board
  • RS Stock No. 272-0288
  • Mfr. Part No. 8GK1061-4KK30
Each
$3,665.60(exc. GST)
Schneider Electric Acti9 Acti9 iC60 MCB, 1P, 1A Curve C, 500V AC, 72V DC, 230 V Breaking Capacity
  • RS Stock No. 479-575
  • Mfr. Part No. A9F94101
Each
$293.70(exc. GST)
Siemens SENTRON Option Plug
  • RS Stock No. 277-0962
  • Mfr. Part No. 3WA9111-0EX08
Each
$2,798.95(exc. GST)
Eaton IZMX16H4-P06F-1 Electronic Circuit Breaker 630A , Fixed
  • RS Stock No. 127-744
  • Mfr. Part No. 183452 IZMX16H4-P06F-1
Each
$21,424.79(exc. GST)
Schneider Electric Shunt Trip Shunt trip for use with ComPact NS630b → 1600, ComPact NS1600b → 3200
  • RS Stock No. 247-1856
  • Mfr. Part No. 33662
Each
$738.40(exc. GST)
Schneider Electric, ComPacT NSX MCCB 3P 80A, Breaking Capacity 25 kA, Panel Mount
  • RS Stock No. 654-817
  • Mfr. Part No. IL0803P25
Each
$898.13(exc. GST)
nVent ERICO Neutral Double Busbar Busbar
  • RS Stock No. 646-809
  • Mfr. Part No. 568716
Each
$9.81(exc. GST)
Legrand HX³ 1 Phase Busbar, 230V, 17.7mm Pitch
  • RS Stock No. 823-4699
  • Mfr. Part No. 4 049 28
Each
$28.57(exc. GST)
Schneider Electric EasyPact Electronic Circuit Breaker 100A, Fixed
  • RS Stock No. 122-410
  • Mfr. Part No. LV510845P
Each
$266.82(exc. GST)
Schneider Electric RCBO, 10A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type C, Acti9 Range
  • RS Stock No. 428-816
  • Mfr. Part No. A9D27210
Each
$2,151.20(exc. GST)
Phoenix Contact Electronic Circuit Breaker 10A 24V CBMC, DIN Rail Mount Type E
  • RS Stock No. 201-5597
  • Mfr. Part No. 2910411
Each
$330.98(exc. GST)
Schneider Electric Acti9 3 Phase Busbar, 415V ac, 18mm Pitch
  • RS Stock No. 211-965
  • Mfr. Part No. A9XPH309
Each
$34.38(exc. GST)
ETA Thermal Circuit Breaker - 8340 Single Pole 80V dc Voltage Rating Flange Mount, 15A Current Rating
  • RS Stock No. 273-4648
  • Mfr. Part No. 8340-F410-P1M1-A3H0-15A
Each
$112.97(exc. GST)
Legrand 96 Way Split Load Metal Consumer Unit, 160A, IP30 XL160
  • RS Stock No. 705-5583
  • Mfr. Part No. 0 200 04
Each
$2,096.28(exc. GST)
ABB Emax2 Electronic Circuit Breaker 1kA Ekip Dip LSI, 4 channels
  • RS Stock No. 259-4546
  • Mfr. Part No. 1SDA072783R1
Each
$15,611.27(exc. GST)
Schneider Electric ComPacT New Generation Trip Unit for use with ComPacT NSX160/250 Circuit Breakers
  • RS Stock No. 260-7724
  • Mfr. Part No. C1645E160
Each
$4,050.95(exc. GST)
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