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

11 of 999+
In Stock
Better World
Schneider Electric Acti 9 Acti9 iDT40T MCB, 1+N, 20A Curve C, 230V AC, 6 kA Breaking Capacity
  • RS Stock No. 191-6090
  • Mfr. Part No. A9P22620
Each
TWD1,138.00(exc. GST)
In Stock
Better World
Schneider Electric Multi 9 MCB, 2P, 6A Curve C, 10 kA Breaking Capacity
  • RS Stock No. 219-9123
  • Mfr. Part No. M9F22206
Each
TWD6,179.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 32A, Breaking Capacity 16 kA, DIN Rail Mount
  • RS Stock No. 271-9580
  • Mfr. Part No. 3VA10322ED360AA0
Each
TWD13,472.00(exc. GST)
In Stock
Schneider Electric Acti9 SE10 MCB Mini Circuit Breaker, 3P, 32A Curve C, 415V AC, 10000 A Breaking Capacity
  • RS Stock No. 339-677
  • Mfr. Part No. SE10C332
Each
TWD4,420.00(exc. GST)
In Stock
Better World
Schneider Electric Multi 9 C60N MCB, 3P, 16A Curve C, 10 kA Breaking Capacity
  • RS Stock No. 214-2071
  • Mfr. Part No. M9F11316
Each
TWD4,902.00(exc. GST)
Temporarily out of stock
Better World
Schneider Electric Acti 9 C120N MCB, 2P, 80A Curve C, 440V AC, 250V DC, 10 kA, 20 kA Breaking Capacity
  • RS Stock No. 776-3054
  • Mfr. Part No. A9N18361
Each
TWD11,071.00(exc. GST)
In Stock
Eaton RCBO, 20A Current Rating, 3P Poles, 30mA Trip Sensitivity, Type A, Type C, FRBmM Range
  • RS Stock No. 123-286
  • Mfr. Part No. 170741 FRBMM-C20/3/003-A
Each
TWD7,509.00(exc. GST)
In Stock
Better World
Schneider Electric Linergy Busbar, 690V, 54mm Pitch
  • RS Stock No. 608-8242
  • Mfr. Part No. GV2G454
Each
TWD796.00(exc. GST)
In Stock
Phoenix Contact Busbar
  • RS Stock No. 332-5829
  • Mfr. Part No. 2966692
Each
TWD591.00(exc. GST)
In Stock
Better World
Siemens SENTRON 5SY MCB, 2P, 10A Curve C
  • RS Stock No. 232-2318
  • Mfr. Part No. 5SY6210-7
Each
TWD2,305.00(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 2P 110A, Breaking Capacity 65 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-514
  • Mfr. Part No. 3VA5111-6ED21-0AA0
Each
TWD19,679.00(exc. GST)
In Stock
Siemens SIRIUS 3 Phase Busbar, 500V ac
  • RS Stock No. 755-2952
  • Mfr. Part No. 3RV2917-1A
Each
TWD1,972.00(exc. GST)
Temporarily out of stock
Schneider Electric, PowerPact MCCB 1P 40A, Breaking Capacity 65 kA, Clip-On
  • RS Stock No. 341-132
  • Mfr. Part No. BJF16040
Each
TWD26,139.00(exc. GST)
In Stock
Better World
Schneider Electric Multi 9 C60SP MCB, 3P, 20A Curve C, 440V AC, 15 kA Breaking Capacity
  • RS Stock No. 211-2375
  • Mfr. Part No. M9F22320
Each
TWD4,149.00(exc. GST)
In Stock
Better World
Schneider Electric Acti9 Acti9 iDT40K MCB, 1+N, 10A Curve C, 230V AC, 4.5 kA Breaking Capacity
  • RS Stock No. 238-3411
  • Mfr. Part No. A9P71610
Each
TWD889.00(exc. GST)
In Stock
Eaton RCD, 6A, 2 Pole, 30mA, Type C, 230V
  • RS Stock No. 922-8692
  • Mfr. Part No. 236022 PKNM-6/1N/C/003-A-MW
Each
TWD4,503.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 40A, Breaking Capacity 55 kA
  • RS Stock No. 209-7070
  • Mfr. Part No. 3VA2140-5HN46-0AA0
Each
TWD39,152.00(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB 3P 70A, Breaking Capacity 5 kA, Fixed Mount
  • RS Stock No. 147-539
  • Mfr. Part No. 3VA5170-4EF31-0AA0
Each
TWD18,629.00(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 2P 20A, Breaking Capacity 18 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-226
  • Mfr. Part No. 3VA5120-5ED21-1AA0
Each
TWD15,301.00(exc. GST)
Temporarily out of stock
Better World
Schneider Electric, Compact MCCB 3P 100A, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 212-0269
  • Mfr. Part No. LV433257
Each
TWD38,195.00(exc. GST)
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