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

267 of 999+
Temporarily out of stock
ABB SU200 M MCB, 1P, 500mA Curve K, 277V AC, 48V DC, 15 kA Breaking Capacity
  • RS Stock No. 200-592
  • Mfr. Part No. 2CDS271337R0157
Each
TWD4,015.00(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 100A, Fixed Mount
  • RS Stock No. 260-7483
  • Mfr. Part No. C10W32D100
Each
TWD62,791.00(exc. GST)
Temporarily out of stock
HENSEL ENYMOD Distribution Board
  • RS Stock No. 117-153
  • Mfr. Part No. Mi MP 6
Each
TWD2,770.00(exc. GST)
Temporarily out of stock
Better World
ABB, XT2V MCCB 4P 10A, Fixed Mount
  • RS Stock No. 236-6549
  • Mfr. Part No. 1SDA068022R1 XT2V 160 Ekip LSIG 10A FF
Each
TWD85,569.00(exc. GST)
Temporarily out of stock
ABB MCCB Molded Case Circuit Breaker 4P 320A, Fixed Mount
  • RS Stock No. 250-4063
  • Mfr. Part No. 1SDA054328R1
Each
TWD152,665.00(exc. GST)
Temporarily out of stock
Siemens, Sentron MCCB Molded Case Circuit Breaker 3P 1kA, Breaking Capacity 35 kA, Cable Mount
  • RS Stock No. 249-144
  • Mfr. Part No. 3VA6610-7HL36-0AA0
Each
TWD308,049.00(exc. GST)
In Stock
Schneider Electric Resi9 Resi9 XP DM MCB, 3+N, 25A Curve C, 400V AC, 3000 A Breaking Capacity
  • RS Stock No. 287-6091
  • Mfr. Part No. R9PFC725
Each
TWD7,110.00(exc. GST)
Temporarily out of stock
Better World
ABB, Tmax XT MCCB 3P 50A, Fixed Mount
  • RS Stock No. 236-6721
  • Mfr. Part No. 1SDA068370R1 XT4L 160 TMA 50A FF
Each
TWD30,880.00(exc. GST)
In Stock
Better World
Siemens RCBO, 25A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type B, Sentron Range
  • RS Stock No. 243-6193
  • Mfr. Part No. 5SU1326-6FP25
Each
TWD5,130.00(exc. GST)
Temporarily out of stock
Eaton NZM Electronic Circuit Breaker 100A , 4 channels , Fixed
  • RS Stock No. 120-159
  • Mfr. Part No. 153390 NZMN2-4-AF100-BT-NA
Each
TWD52,480.00(exc. GST)
Temporarily out of stock
Hager RCBO, 25A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type F
  • RS Stock No. 602-090
  • Mfr. Part No. ADF825F
Each
TWD13,835.00(exc. GST)
In Stock
Eaton RCBO, 32A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type A, Type C, PXK Range
  • RS Stock No. 203-9037
  • Mfr. Part No. 236967 PXK-C32/1N/003-A
Each
TWD5,382.00(exc. GST)
In Stock
Better World
Schneider Electric Busbar
  • RS Stock No. 219-9030
  • Mfr. Part No. AK5JB146
Each
TWD13,287.00(exc. GST)
Temporarily out of stock
Better World
Siemens RCBO, 16A Current Rating, 2P Poles, 30mA Trip Sensitivity, Sentron Range
  • RS Stock No. 225-8771
  • Mfr. Part No. 5SU1356-7GV16
Each (In a Pack of 36)
TWD6,004.40(exc. GST)
In Stock
Better World
Siemens RCBO, 13A Current Rating, 2P Poles, 30mA Trip Sensitivity, Sentron Range
  • RS Stock No. 225-8747
  • Mfr. Part No. 5SU1354-6LB13
Each
TWD10,133.00(exc. GST)
Temporarily out of stock
Phoenix Contact Surge Protector, DIN Rail Mount
  • RS Stock No. 207-2768
  • Mfr. Part No. 2907834
Each
TWD5,144.00(exc. GST)
Temporarily out of stock
Siemens SENTRON Handle for use with Circuit Breaker 3VA27
  • RS Stock No. 266-686
  • Mfr. Part No. 8UD1861-0AB11
Each
TWD4,981.00(exc. GST)
In Stock
ABB RCBO, 16A Current Rating, 2P Poles, 30mA Trip Sensitivity
  • RS Stock No. 231-9934
  • Mfr. Part No. 2CSR255151R1165 DSE201 B16 A30
Each
TWD2,611.00(exc. GST)
In Stock
Schneider Electric Acti9 Active Vigi iC60 MCB Mini Circuit Breaker, 2P, 25A, Type A-SI, 230V AC
  • RS Stock No. 655-444
  • Mfr. Part No. A9V6E225
Each
TWD25,011.00(exc. GST)
In Stock
Better World
Siemens Sentron 5SY4 MCB, 4P, 63A Curve B, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 124-3210
  • Mfr. Part No. 5SY4463-6
Each
TWD5,555.00(exc. GST)
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