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

120 of 999+
Temporarily out of stock
ABB Copper Copper Bar for Use with TriLine
  • RS Stock No. 237-6594
  • Mfr. Part No. 2CPX061358R9999
1 Box of 1
TWD47,468.00(exc. GST)
Temporarily out of stock
Better World
Schneider Electric Multi 9 C60BP MCB, 3P, 50A Curve C, 440V AC, 15 kA Breaking Capacity
  • RS Stock No. 211-2433
  • Mfr. Part No. M9F42350
Each
TWD7,751.00(exc. GST)
Temporarily out of stock
ABB S804C MCB, 4P, 13A Curve D, 415V AC, 25 kA Breaking Capacity
  • RS Stock No. 140-501
  • Mfr. Part No. 2CCS884001R0131
Each
TWD22,825.00(exc. GST)
In Stock
Better World
Schneider Electric Acti 9 Acti9 iDT40N MCB, 4P, 63A Curve C, 10 kA Breaking Capacity
  • RS Stock No. 191-6102
  • Mfr. Part No. A9P24463
Each
TWD13,683.00(exc. GST)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 250A, Breaking Capacity 5 kA, Plug In
  • RS Stock No. 246-850
  • Mfr. Part No. 191593 NZMN3-VX250-SVE
Each
TWD95,595.00(exc. GST)
Temporarily out of stock
Eaton Eaton Moeller NZM Door Coupling Handle for use with N(S)4, NZM4
  • RS Stock No. 259-655
  • Mfr. Part No. 271452 NZM4-XTVDVR-NA
Each
TWD12,567.00(exc. GST)
Temporarily out of stock
Schneider Electric, 250 → 750mm, Canalis Series
  • RS Stock No. 357-777
  • Mfr. Part No. KSA250DLF4AM
Each
TWD177,944.00(exc. GST)
Currently unavailable
Schneider Electric EasyPact Electronic Circuit Breaker 25A, Plug In
  • RS Stock No. 122-474
  • Mfr. Part No. LV510453P
Each
TWD7,424.00(exc. GST)
In Stock
Legrand Key Lock for use with DRIVIA cabinets
  • RS Stock No. 786-5671
  • Mfr. Part No. 4 013 91
Each
TWD1,082.00(exc. GST)
Temporarily out of stock
Schneider Electric, MasterPact MTZ1 Circuit Breaker Accessory
  • RS Stock No. 119-530
  • Mfr. Part No. LV833792
Each
TWD18,332.00(exc. GST)
Temporarily out of stock
ABB RCBO, 10A Current Rating, 3P Poles, Type C
  • RS Stock No. 237-5062
  • Mfr. Part No. 2CSR253001R1104
Each
TWD11,244.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 50A, Breaking Capacity 70 kA, DIN Rail Mount
  • RS Stock No. 271-9373
  • Mfr. Part No. 3VA1150-6GE46-0AA0
Each
TWD20,477.00(exc. GST)
Temporarily out of stock
Siemens Surge Protector, Clip-On Mount
  • RS Stock No. 211-0194
  • Mfr. Part No. 5SD7488-0
Each
TWD4,230.00(exc. GST)
In Stock
Better World
Schneider Electric Multi 9 MCB, 2P, 32A Curve B, 10 kA Breaking Capacity
  • RS Stock No. 219-9112
  • Mfr. Part No. M9F21232
Each
TWD6,956.00(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB 4P 800A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 270-4842
  • Mfr. Part No. 3VA2580-5JP42-0AA0
Each
TWD431,354.00(exc. GST)
Temporarily out of stock
Siemens SENTRON Mounting Kit for use with 3VA11
  • RS Stock No. 152-462
  • Mfr. Part No. 3VA9111-0SS10
Each
TWD755.00(exc. GST)
Temporarily out of stock
Siemens SENTRON Conversion Kit
  • RS Stock No. 277-0884
  • Mfr. Part No. 3WA9111-0BC11
1 Set
TWD45,969.00(exc. GST)
Temporarily out of stock
Better World
Schneider Electric Multi 9 MCB Mini Circuit Breaker, 2P, 4A Curve D, 277V AC
  • RS Stock No. 256-6816
  • Mfr. Part No. M9F53204
Each
TWD9,531.00(exc. GST)
In Stock
ETA Thermal Circuit Breaker - 1610 Single Pole 32V dc Voltage Rating, 6A Current Rating
  • RS Stock No. 409-867
  • Mfr. Part No. 1610-21-6A
Each
TWD281.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 100A, Breaking Capacity 150 kA, Fixed Mount
  • RS Stock No. 270-3610
  • Mfr. Part No. 3VA2010-8HN46-0AA0
Each
TWD58,253.00(exc. GST)
1
120
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