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

255 of 999+
Temporarily out of stock
Eaton Eaton Moeller NZM Assembly Kit for use with N(S)3(-4), NZM3(-4), PN3(-4)
  • RS Stock No. 230-821
  • Mfr. Part No. 118988 NZM3-XHB-DA
Each
TWD17,395.00(exc. GST)
Temporarily out of stock
Phoenix Contact Thermal Circuit Breaker - CB TM2 2 Pole 240V ac Voltage Rating, 500mA Current Rating
  • RS Stock No. 217-6374
  • Mfr. Part No. 2800879
Each
TWD3,084.00(exc. GST)
In Stock
Schneider Electric Single Phase Surge Arrester, 65kA, 350V (Volts), Clip-On Mount
  • RS Stock No. 130-970
  • Mfr. Part No. A9L65301
Each
TWD56,899.00(exc. GST)
Temporarily out of stock
Phoenix Contact Thermomagnetic Device Circuit Breaker Thermal Circuit Breaker - CB Single Pole 50V dc Voltage Rating,
  • RS Stock No. 212-8782
  • Mfr. Part No. 2800840
Each
TWD1,455.00(exc. GST)
In Stock
Better World
Siemens RCBO, 10A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type B, Sentron Range
  • RS Stock No. 243-6140
  • Mfr. Part No. 5SU1324-6FP10
Each
TWD5,511.00(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 100A, Breaking Capacity 7 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-478
  • Mfr. Part No. 3VA5110-5ED31-0AA0
Each
TWD18,752.00(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 4P 125A, Fixed Mount
  • RS Stock No. 260-7699
  • Mfr. Part No. C12H4TM125L
Each
TWD51,327.00(exc. GST)
Temporarily out of stock
Better World
Siemens RCBO, 6A Current Rating, 2P Poles, Type AC, Sentron Range
  • RS Stock No. 196-3613
  • Mfr. Part No. 5SU13541KK06
Each
TWD7,791.00(exc. GST)
In Stock
Better World
Schneider Electric, ComPacT NSX MCCB 3P 40A, Fixed Mount
  • RS Stock No. 254-6282
  • Mfr. Part No. C10F32D040
Each
TWD27,351.00(exc. GST)
Temporarily out of stock
Phoenix Contact Thermomagnetic Device Circuit Breaker Thermal Circuit Breaker - CB Single Pole 50V dc Voltage Rating,
  • RS Stock No. 212-8785
  • Mfr. Part No. 2800846
Each
TWD1,542.00(exc. GST)
In Stock
Better World
ABB Compact Home SH200 MCB, 3P, 10A Curve B, 440V AC, 6 kA Breaking Capacity
  • RS Stock No. 539-8289
  • Mfr. Part No. 2CDS213001R0105 SH203-B10
Each
TWD1,674.00(exc. GST)
Temporarily out of stock
Better World
ABB, XT3N MCCB 4P 125A, Fixed Mount
  • RS Stock No. 236-6582
  • Mfr. Part No. 1SDA068067R1 XT3N 250 TMD 125A FF
Each
TWD31,788.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 80A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 874-4341
  • Mfr. Part No. 3VA1180-3EF36-0AA0
Each
TWD16,576.00(exc. GST)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 4P 160A, Breaking Capacity 7.5 kA, Fixed Mount
  • RS Stock No. 259-420
  • Mfr. Part No. 281251 NZMN1-4-A160
Each
TWD46,131.00(exc. GST)
Temporarily out of stock
Eaton xEffect FAZ MCB, 1P, 6A Curve D, 240V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 247-134
  • Mfr. Part No. 102144 FAZ-D6/1-RT
Each
TWD2,517.00(exc. GST)
In Stock
ABB Door Handle
  • RS Stock No. 289-1609
  • Mfr. Part No. 2CPX052412R9999
Each
TWD1,714.00(exc. GST)
Temporarily out of stock
Schneider Electric Resi9 Electronic Circuit Breaker 60A Resi9 DB, DIN Rail Type C
  • RS Stock No. 429-444
  • Mfr. Part No. R9FN660
Each
TWD10,121.00(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT New Generation MCCB 3P 70A, Breaking Capacity 25 kA, Screw Mount
  • RS Stock No. 244-918
  • Mfr. Part No. BDL36070LU
Each
TWD17,991.00(exc. GST)
Temporarily out of stock
ABB S804N MCB, 4P, 13A Curve C, 690V AC, 36 kA Breaking Capacity
  • RS Stock No. 140-573
  • Mfr. Part No. 2CCS894001R0134
Each
TWD26,358.00(exc. GST)
Limited stock
Legrand DX Range DX3 MCB, 1P, 16A Curve C, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 731-9474
  • Mfr. Part No. 4 076 54
Each
TWD1,734.00(exc. GST)
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