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

91 of 999+
Temporarily out of stock
ABB RCBO, 16A Current Rating, 1P+N Poles, 300mA Trip Sensitivity, Type C
  • RS Stock No. 183-3706
  • Mfr. Part No. 2CSR245041R3164
Each
$215.38(exc. VAT)
In Stock
Better World
Schneider Electric, PowerLogic, 2kA, Energy Sensor, 3VA, Wired
  • RS Stock No. 256-4054
  • Mfr. Part No. A9MEM1593
Each
$2,790.61(exc. VAT)
In Stock
Hager MJT MCB, 2P, 16A Curve C, 240 → 400V AC, 6 kA Breaking Capacity
  • RS Stock No. 144-4950
  • Mfr. Part No. MJT716
Each
$50.88(exc. VAT)
In Stock
Better World
Siemens 5SV3 RCCB, 16A, 2 Pole, 30mA, Type A, 230V ac
  • RS Stock No. 124-7726
  • Mfr. Part No. 5SV3311-6
Each
$360.32(exc. VAT)
In Stock
Better World
Schneider Electric Acti 9 iC60L MCB, 3P, 16A Curve C, 15 kA Breaking Capacity
  • RS Stock No. 219-9284
  • Mfr. Part No. A9F94316
Each
$407.33(exc. VAT)
In Stock
Siemens SIRIUS 3 Phase Busbar, 690V, 45mm Pitch
  • RS Stock No. 246-5162
  • Mfr. Part No. 3RV1915-1DB
Each
$116.28(exc. VAT)
Temporarily out of stock
Schneider Electric A9R RCCB, 63A, 2 Pole, 240V
  • RS Stock No. 245-151
  • Mfr. Part No. A9R61263
Each
$804.17(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON Electronic Circuit Breaker 400A 3VA, 3 channels
  • RS Stock No. 156-691
  • Mfr. Part No. 3VA2340-7JQ32-0AA0
Each
$8,126.91(exc. VAT)
Currently unavailable
Schneider Electric EasyPact Electronic Circuit Breaker 600A, Fixed
  • RS Stock No. 122-319
  • Mfr. Part No. LV563326
Each
$1,361.76(exc. VAT)
Temporarily out of stock
ABB Residual Current Release for use with Three-Pole XT1
  • RS Stock No. 192-0910
  • Mfr. Part No. 1SDA067123R1
Each
$2,151.41(exc. VAT)
In Stock
ABB System Pro M Compact S200 MCB, 1P, 20A Curve B, 253V AC, 72V DC, 6 kA Breaking Capacity
  • RS Stock No. 488-6971
  • Mfr. Part No. 2CDS251001R0205 - S201B20
Each
$55.78(exc. VAT)
Temporarily out of stock
ABB DDA200 RCD, 25A, 4 Pole, 300mA, Type AC
  • RS Stock No. 183-3654
  • Mfr. Part No. 2CSB204001R3250
Each
$215.78(exc. VAT)
Temporarily out of stock
Eaton Phase Busbar 3 Phase Busbar, 277V
  • RS Stock No. 231-736
  • Mfr. Part No. 121983 BB-UL-18/3P-3M/57
Each
$174.96(exc. VAT)
Temporarily out of stock
Schneider Electric PowerPact Thermal Magnetic Circuit Breaker - PowerPacT 4 Pole 690V Voltage Rating Clip-On, 100A
  • RS Stock No. 357-332
  • Mfr. Part No. BJL46100LU
Each
$3,825.71(exc. VAT)
Temporarily out of stock
Eaton xComfort Distribution Board Enclosure, 24 Way
  • RS Stock No. 256-892
  • Mfr. Part No. 283032 BF-O-4/96-C
Each
$1,888.37(exc. VAT)
Currently unavailable
Schneider Electric EasyPact Electronic Circuit Breaker 16A, Plug In
  • RS Stock No. 122-455
  • Mfr. Part No. LV510330P
Each
$315.14(exc. VAT)
In Stock
Better World
Schneider Electric MCCB 3P 0 → 160A, Fixed Mount
  • RS Stock No. 178-7889
  • Mfr. Part No. LV426940
Each
$70.20(exc. VAT)
Temporarily out of stock
ABB PBSC 3, 3+N Phase Busbar
  • RS Stock No. 202-504
  • Mfr. Part No. 1STQ007423A0000
Each
$3,294.92(exc. VAT)
Temporarily out of stock
Schneider Electric, PowerPact Circuit breaker 1P 25A, Breaking Capacity 14 kA, Clip-On
  • RS Stock No. 339-225
  • Mfr. Part No. BDL16025
Each
$513.73(exc. VAT)
In Stock
Better World
Schneider Electric Acti 9 iC60L MCB, 4P, 10A Curve C
  • RS Stock No. 247-1951
  • Mfr. Part No. A9F94410
Each
$129.68(exc. VAT)
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