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

35874 Products showing for Circuit Breakers

79 of 999+
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 100A, Breaking Capacity 150 kA, Fixed Mount
  • RS Stock No. 270-3623
  • Mfr. Part No. 3VA2010-8KP42-0AA0
Each
TWD92,861.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 63A
  • RS Stock No. 209-7003
  • Mfr. Part No. 3VA1163-1AA46-0AA0
Each
TWD16,576.00(exc. GST)
Temporarily out of stock
Eaton Eaton xEnergy Main Partitions for use with Circuit Breaker
  • RS Stock No. 243-108
  • Mfr. Part No. 184645 XPRCCH03506
Each
TWD1,617.00(exc. GST)
Temporarily out of stock
Eaton Eaton Moeller Series NZM Terminal Element for use with N(S)1, NZM1, PN1
  • RS Stock No. 254-936
  • Mfr. Part No. 260019 NZM1-XKS
Each
TWD1,215.00(exc. GST)
In Stock
RS PRO Residential RCCBs, 25A, 2 Pole, 30mA, Type A, 230V
  • RS Stock No. 284-2367
Each
TWD1,123.00(exc. GST)
In Stock
ABB F200 RCCB, 25A, 2 Pole, 30mA, Type AC, 230V
  • RS Stock No. 537-7355
  • Mfr. Part No. 2CSF202001R1250 F202 AC-25/0,03
Each
TWD5,132.00(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB 3P 400A, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 257-402
  • Mfr. Part No. 3VA5340-7EF31-0AA0
Each
TWD104,101.00(exc. GST)
In Stock
Better World
Schneider Electric Acti 9 iC60N MCB, 2P, 40A Curve C, 440V AC, 125V DC, 6 kA Breaking Capacity
  • RS Stock No. 776-3474
  • Mfr. Part No. A9F77240
Each
TWD4,179.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 50A, Breaking Capacity 25 kA, DIN Rail Mount
  • RS Stock No. 271-9348
  • Mfr. Part No. 3VA1150-3GD46-0AA0
Each
TWD18,515.00(exc. GST)
Temporarily out of stock
Hager BFC RCCB, 40A, 4 Pole, 300mA, Type AC
  • RS Stock No. 602-193
  • Mfr. Part No. BFC843
Each
TWD11,405.00(exc. GST)
Temporarily out of stock
Better World
Schneider Electric Multi 9 C60SP MCB, 3P, 6A Curve B, 440V AC, 15 kA Breaking Capacity
  • RS Stock No. 211-2343
  • Mfr. Part No. M9F21306
Each
TWD5,353.00(exc. GST)
In Stock
Better World
Schneider Electric Multi 9 M9F4 MCB, 1P, 5A, Type Z, 415V AC, 60V DC, 20 kA, 3 kA Breaking Capacity
  • RS Stock No. 211-2675
  • Mfr. Part No. M9F44105
Each
TWD1,823.00(exc. GST)
In Stock
Better World
Siemens 5SV4311 RCCB, 16A, 2 Pole, 30mA, Type AC, 230V ac
  • RS Stock No. 231-8386
  • Mfr. Part No. 5SV4311-0
Each
TWD6,775.00(exc. GST)
Currently unavailable
Better World
Schneider Electric iID RCCB, 40A, 4 Pole, 300mA, Type B-SI, 400V ac
  • RS Stock No. 248-3727
  • Mfr. Part No. A9Z65440
Each
TWD57,543.00(exc. GST)
Temporarily out of stock
Better World
Siemens, Sentron MCCB Molded Case Circuit Breaker 4P 40A, Breaking Capacity 2.5 kA
  • RS Stock No. 245-390
  • Mfr. Part No. 3VA6140-7KL41-2AA0
Each
TWD105,365.00(exc. GST)
Temporarily out of stock
Eaton xEffect - FBSmV RCCB, 63A, 3 Pole, 30mA, Type A, 240/415V ac
  • RS Stock No. 123-524
  • Mfr. Part No. 170218 FBSMV-63/3/003-A
Each
TWD8,083.00(exc. GST)
In Stock
Schurter Thermal Circuit Breaker - T11-211 Single Pole 48 V dc, 240V ac Voltage Rating Panel Mount, 3A Current Rating
  • RS Stock No. 868-8778
  • Mfr. Part No. 4400.0010
Each
TWD334.00(exc. GST)
Temporarily out of stock
Siemens 400V (Volts) Push Button Circuit Trip for use with Long supply lines
  • RS Stock No. 210-1753
  • Mfr. Part No. 5TE4822
Each
TWD2,729.00(exc. GST)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 110A, Breaking Capacity 5 kA, Fixed Mount
  • RS Stock No. 253-788
  • Mfr. Part No. 269201 NZMH2-AF110-NA
Each
TWD50,843.00(exc. GST)
In Stock
Better World
Schneider Electric 250V ac Push Button Push Button
  • RS Stock No. 790-9187
  • Mfr. Part No. A9E18038
Each
TWD1,416.00(exc. GST)
1
79
1794
Results per page

Related links