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

238 of 999+
Temporarily out of stock
Hager BFH RCCB, 40A, 3P+N Pole, 300mA, Type A-HI
  • RS Stock No. 597-992
  • Mfr. Part No. BFH940F
Each
TWD14,351.00(exc. GST)
In Stock
Better World
Schneider Electric Linergy Busbar, 400V
  • RS Stock No. 211-2274
  • Mfr. Part No. AK5JB145
Each
TWD10,703.00(exc. GST)
Temporarily out of stock
Siemens RCBO, 63A Current Rating, 2P Poles, 300mA Trip Sensitivity, Type A, SENTRON Range
  • RS Stock No. 211-9579
  • Mfr. Part No. 5SM2625-8
Each
TWD10,645.00(exc. GST)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 4P 0.001kA, Breaking Capacity 37 kA, Fixed Mount
  • RS Stock No. 253-854
  • Mfr. Part No. 265990 NZMH4-4-VE1000
Each
TWD318,470.00(exc. GST)
Temporarily out of stock
Better World
Schneider Electric Acti9 iTG40 RCCB, 40A, 1+N Pole, 300mA, Type AC, 230V ac
  • RS Stock No. 238-3491
  • Mfr. Part No. A9Y13640
Each
TWD10,796.00(exc. GST)
Temporarily out of stock
Better World
ABB, XT2L MCCB 3P 8A, Fixed Mount
  • RS Stock No. 236-7401
  • Mfr. Part No. 1SDA067635R1 XT2L 160 TMD 8A FF
Each
TWD17,457.00(exc. GST)
Temporarily out of stock
Eaton xE?ect - FRCmM-NA RCCB, 63A, 4 Pole, 30mA, 240/415V ac
  • RS Stock No. 120-281
  • Mfr. Part No. 167109 FRCMM-63/4/003-G/A-NA
Each
TWD10,505.00(exc. GST)
Temporarily out of stock
ABB MCCB Molded Case Circuit Breaker 3P 320A, Fixed Mount
  • RS Stock No. 250-4176
  • Mfr. Part No. 1SDA054448R1
Each
TWD177,610.00(exc. GST)
In Stock
ABB DDA 200 A RCD, 25A, 3+N Pole, 30mA, Type A
  • RS Stock No. 610-3442
  • Mfr. Part No. 2CSB204101R1250 - DDA204A-25/0,03
Each
TWD3,924.00(exc. GST)
Temporarily out of stock
Better World
Schneider Electric, PowerPact MCCB 3P 200A, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 219-8421
  • Mfr. Part No. NJJF36200TW
Each
TWD92,769.00(exc. GST)
Temporarily out of stock
ABB 16 Way Steel Consumer Unit, 100A, IP30 Housemaster
  • RS Stock No. 453-996
  • Mfr. Part No. 1SKB118142C6001
Each
TWD10,304.00(exc. GST)
Temporarily out of stock
Better World
Schneider Electric Acti 9 A9N1 MCB, 4P, 63A Curve B
  • RS Stock No. 219-8286
  • Mfr. Part No. A9N18434
Each
TWD18,509.00(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 1kA, Breaking Capacity 31 kA, Fixed Mount
  • RS Stock No. 428-721
  • Mfr. Part No. C100H320FM
Each
TWD400,829.00(exc. GST)
In Stock
Schneider Electric Easy9 Busbar
  • RS Stock No. 850-8678
  • Mfr. Part No. EZ916BKIT
Each
TWD215.00(exc. GST)
Temporarily out of stock
Siemens SENTRON 5SJ4232 MCB, 2P, 32A Curve D, 400V AC, 60V DC, 10 kA Breaking Capacity
  • RS Stock No. 299-969
  • Mfr. Part No. 5SJ4232-8HG41
Each
TWD7,165.00(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
ABB, SACE Tmax XT MCCB Molded Case Circuit Breaker 3P 800A, Fixed Mount
  • RS Stock No. 231-9350
  • Mfr. Part No. 1SDA100741R1 XT6S 800 EkipDip LS/I 800
Each
TWD91,874.00(exc. GST)
In Stock
Eaton RCBO, 10A Current Rating, 3P Poles, 30mA Trip Sensitivity, Type A, Type C, FRBmM Range
  • RS Stock No. 123-281
  • Mfr. Part No. 170738 FRBMM-C10/3/003-A
Each
TWD7,181.00(exc. GST)
In Stock
Better World
Siemens Sentron 5SY4 MCB, 4P, 63A Curve C, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 124-3211
  • Mfr. Part No. 5SY4463-7
Each
TWD6,662.00(exc. GST)
In Stock
Schneider Electric Acti 9 MCB, 3P, 20A Curve C, 230V AC, 7.5 kA Breaking Capacity
  • RS Stock No. 200-6171
  • Mfr. Part No. A9PA2720
Each
TWD7,440.00(exc. GST)
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