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

67 of 999+
Schneider Electric ComPacT Trip Unit for use with ComPacT NSX250
  • RS Stock No. 654-148
  • Mfr. Part No. C253MG250
Each
$542.91(exc. GST)
TE Connectivity Thermal Circuit Breaker - W58 Single Pole 50 V dc, 250V ac Voltage Rating, 4A Current Rating
  • RS Stock No. 782-8022
  • Mfr. Part No. W58-XB1A4A-4
Each
$25.29(exc. GST)
Better World
Siemens, SENTRON MCCB 4P 40A, Breaking Capacity 55 kA, Fixed Mount
  • RS Stock No. 270-3736
  • Mfr. Part No. 3VA2040-5JQ46-0AA0
Each
$4,758.12(exc. GST)
Legrand TX³ - MCB 6000 MCB, 3P, 32A Curve C, 230V AC
  • RS Stock No. 249-5889
  • Mfr. Part No. 4 035 48
Each
$81.86(exc. GST)
Better World
Siemens, SENTRON MCCB 4P 25A, Breaking Capacity 85 kA, Fixed Mount
  • RS Stock No. 270-3659
  • Mfr. Part No. 3VA2025-6JQ46-0AA0
Each
$5,049.43(exc. GST)
Schurter TA36 Rocker Circuit Breaker - TA36 Single Pole 32 V dc, 277 V ac Voltage Rating, 20A Current Rating
  • RS Stock No. 221-5595
  • Mfr. Part No. 3-128-208
Each
$26.10(exc. GST)
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 40A, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 268-037
  • Mfr. Part No. 3VA5240-7ED31-0AA0
Each
$2,094.48(exc. GST)
Better World
Siemens, SENTRON MCCB 3P 600A, Breaking Capacity 65 kA, Fixed Mount
  • RS Stock No. 249-887
  • Mfr. Part No. 3VA6460-6JT31-0AA0
Each
$15,338.41(exc. GST)
Better World
Schneider Electric, PowerPact MCCB 3P 15A, Breaking Capacity 14 kA, Fixed Mount
  • RS Stock No. 219-8304
  • Mfr. Part No. BDF36015
Each
$1,062.66(exc. GST)
Schneider Electric, ComPacT MCCB 3P 1kA, Breaking Capacity 31 kA, Fixed Mount
  • RS Stock No. 341-199
  • Mfr. Part No. C100H32AFM
Each
$26,176.59(exc. GST)
SENTRON Terminal Cover for use with 3VA52, 3VA61/62 Series
  • RS Stock No. 263-928
  • Mfr. Part No. 3VA9271-0WF31
Each
$345.98(exc. GST)
ETA Thermal Circuit Breaker - 2-5700 Single Pole 250V Voltage Rating Panel Mount, 2.5A Current Rating
  • RS Stock No. 405-9129
  • Mfr. Part No. 2-5700-IG1-P10-DD-000040-2.5A
Each
$96.28(exc. GST)
Hager BFF RCCB, 25A, 3P+N Pole, 300mA, Type F
  • RS Stock No. 602-065
  • Mfr. Part No. BFF425F
Each
$838.35(exc. GST)
Schneider Electric, Compact MCCB 3P 1.6kA, Breaking Capacity 22 kA, Fixed Mount
  • RS Stock No. 354-403
  • Mfr. Part No. C160H3FM
Each
$17,350.34(exc. GST)
ABB Cover for use with SACE Tmax XT
  • RS Stock No. 192-0924
  • Mfr. Part No. 1SDA066670R1
Each
$105.96(exc. GST)
Hager BDH RCCB, 63A, 4 Pole, 30mA, Type A
  • RS Stock No. 602-180
  • Mfr. Part No. BDH863
Each
$1,431.01(exc. GST)
Better World
Siemens, SENTRON MCCB 3P 40A, Breaking Capacity 25 kA
  • RS Stock No. 209-6813
  • Mfr. Part No. 3VA1140-3EF32-0AA0
Each
$820.82(exc. GST)
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 100A, Breaking Capacity 35 kA, Fixed Mount
  • RS Stock No. 269-881
  • Mfr. Part No. 3VA6110-5JT31-2AA0
Each
$5,180.08(exc. GST)
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 7A, Breaking Capacity 10 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-725
  • Mfr. Part No. 3VA5107-1MH31-0AA0
Each
$1,020.03(exc. GST)
ABB PBSC 3, 3+N Phase Busbar
  • RS Stock No. 203-395
  • Mfr. Part No. 1STQ007424A0000
Each
$5,002.32(exc. GST)
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