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

296 of 999+
Temporarily out of stock
ABB S800S MCB, 3P, 6A Curve B, 240V AC, 50 kA Breaking Capacity
  • RS Stock No. 141-254
  • Mfr. Part No. 2CCS863001R0065
Each
TWD35,424.00(exc. GST)
Temporarily out of stock
Schneider Electric ComPacT New Generation Trip Unit for use with ComPacT NSX100/160/250
  • RS Stock No. 260-9372
  • Mfr. Part No. C1044V100
Each
TWD98,405.00(exc. GST)
Temporarily out of stock
Eaton xEffect MCB, 3P, 50A Curve B, 400V AC, 25 kA Breaking Capacity
  • RS Stock No. 246-362
  • Mfr. Part No. 174510 AZ-3-B50
Each
TWD11,303.00(exc. GST)
In Stock
Better World
Schneider Electric TeSys GVAU MCB
  • RS Stock No. 221-0908
  • Mfr. Part No. GVAU116
Each
TWD3,504.00(exc. GST)
In Stock
ABB SMISSLINE TP S400M MCB, 2P, 20A Curve C, 12V AC, 12V DC, 15 kA Breaking Capacity
  • RS Stock No. 231-9561
  • Mfr. Part No. 2CCS571103R8204 S401M-C20NP
Each
TWD2,873.00(exc. GST)
Temporarily out of stock
Schneider Electric Plain Front Plate for use with Enclosure
  • RS Stock No. 498-3325
  • Mfr. Part No. 13945
Each
TWD1,192.00(exc. GST)
In Stock
Eaton 24V ac/dc Shunt Trip Shunt trip for use with N(S)1(-4) Series, NZM1(-4) Series
  • RS Stock No. 454-8203
  • Mfr. Part No. 259708 NZM1-XA24AC/DC
Each
TWD3,743.00(exc. GST)
Temporarily out of stock
Siemens ALPHA Cover for use with ALPHA 400/630
  • RS Stock No. 216-4817
  • Mfr. Part No. 8GK4501-4KK22
Each
TWD7,970.00(exc. GST)
In Stock
Schneider Electric RCBO, 32A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type B, Acti9 Range
  • RS Stock No. 336-588
  • Mfr. Part No. SEE132B03
Each
TWD2,695.00(exc. GST)
In Stock
Europa 1 Module Blank for use with Electrical Consumer Units
  • RS Stock No. 849-6266
  • Mfr. Part No. ECUBPD
Each
TWD41.00(exc. GST)
Temporarily out of stock
Schneider Electric ComPacT Cover Frame for use with ComPacT NS630b
  • RS Stock No. 654-141
  • Mfr. Part No. C125H3WM
Each
TWD120,196.00(exc. GST)
In Stock
Europa EUC3P EUC MCB, 3P, 63A Curve C, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 849-6608
  • Mfr. Part No. EUC3P63C
Each
TWD637.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 100A, Breaking Capacity 150 kA, Fixed Mount
  • RS Stock No. 270-4023
  • Mfr. Part No. 3VA2110-8HM36-0AA0
Each
TWD55,051.00(exc. GST)
Temporarily out of stock
Schneider Electric ComPact Auxiliary Contact for use with NS630b to NS3200
  • RS Stock No. 275-6651
  • Mfr. Part No. 33011
Each
TWD1,536.00(exc. GST)
Temporarily out of stock
ETA Circuit Breaker Splash Cover
  • RS Stock No. 150-035
  • Mfr. Part No. X222.444.01
Each
TWD1,307.00(exc. GST)
In Stock
ETA Thermal Circuit Breaker - 3120-N 2 Pole 50 V DC, 240 V AC Voltage Rating, 2.5A Current Rating
  • RS Stock No. 210-2070
  • Mfr. Part No. 3120-N521-H7T1-W01D-2.5A
Each
TWD1,141.00(exc. GST)
Temporarily out of stock
Eaton xEffect FAZ MCB, 1P, 10A Curve D, 240V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 248-708
  • Mfr. Part No. 102147 FAZ-D10/1-RT
Each
TWD2,475.00(exc. GST)
Temporarily out of stock
ABB S803N MCB, 3P, 16A Curve B, 690V AC, 36 kA Breaking Capacity
  • RS Stock No. 140-396
  • Mfr. Part No. 2CCS893001R0165
Each
TWD20,306.00(exc. GST)
Temporarily out of stock
Better World
Siemens SENTRON Electronic Circuit Breaker 160A 3VA2, 4 channels
  • RS Stock No. 157-362
  • Mfr. Part No. 3VA2216-8HN42-0AA0
Each
TWD121,045.00(exc. GST)
In Stock
Hager Electronic Circuit Breaker 32A NQN, 3 channels
  • RS Stock No. 251-2083
  • Mfr. Part No. NQN332
Each
TWD13,136.00(exc. GST)
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