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

278 of 999+
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 800A Ekip Touch LI, 4 channels
  • RS Stock No. 259-4502
  • Mfr. Part No. 1SDA072724R1
Each
TWD160,010.00(exc. GST)
Temporarily out of stock
Better World
Siemens, Sentron MCCB Molded Case Circuit Breaker 3P 100A, Breaking Capacity 3 kA
  • RS Stock No. 245-254
  • Mfr. Part No. 3VA6210-8JP31-2AA0
Each
TWD135,633.00(exc. GST)
In Stock
Better World
ABB System Pro M Compact S200 MCB, 3P, 20A Curve K, 440V AC, 20 kA Breaking Capacity
  • RS Stock No. 514-0232
  • Mfr. Part No. 2CDS253001R0487 S203-K20
Each
TWD3,555.00(exc. GST)
In Stock
Better World
ABB System Pro M Compact S200 MCB, 2P, 4A Curve K, 440V AC, 125V DC, 6 kA Breaking Capacity
  • RS Stock No. 746-7983
  • Mfr. Part No. 2CDS252001R0337 S202-K4
Each
TWD2,453.00(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB 3P 400A, Breaking Capacity 65 kA, Fixed Mount
  • RS Stock No. 257-295
  • Mfr. Part No. 3VA5340-6EF31-2AA0
Each
TWD95,020.00(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 5kA Ekip G Touch LSIG, 3 channels
  • RS Stock No. 259-3351
  • Mfr. Part No. 1SDA071267R1
Each
TWD1,461,839.00(exc. GST)
Temporarily out of stock
Schneider Electric Cross Elbow Busbar Trunking, 290 → 1200mm, 630A, Canalis Series
  • RS Stock No. 335-119
  • Mfr. Part No. KSA630DMCK43F
Each
TWD126,125.00(exc. GST)
In Stock
Better World
Schneider Electric Industrial Surge Protection, 2.5kA, DIN Rail Mount
  • RS Stock No. 247-1956
  • Mfr. Part No. A9L08600
Each
TWD15,117.00(exc. GST)
In Stock
Eaton xEffect MCB, 1P, 32A Curve B, 240V AC, 48V DC, 10 kA Breaking Capacity
  • RS Stock No. 922-6986
  • Mfr. Part No. 278538 FAZ-B32/1
Each
TWD846.00(exc. GST)
Temporarily out of stock
ABB S403M MCB, 3P, 16A Curve K, 440V AC, 16V DC, 25 kA Breaking Capacity
  • RS Stock No. 140-598
  • Mfr. Part No. 2CCS573001R0467
Each
TWD13,528.00(exc. GST)
Temporarily out of stock
WEG EC-R2 Busbar for use with CWB40, CWB50, CWB66, CWB80
  • RS Stock No. 201-3476
  • Mfr. Part No. EC-R2
Each
TWD1,351.00(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB 4P 80A, Breaking Capacity 10 kA, Fixed Mount
  • RS Stock No. 147-583
  • Mfr. Part No. 3VA5180-6EF41-0AA0
Each
TWD30,737.00(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB 4P 250A, Breaking Capacity 10 kA, Fixed Mount
  • RS Stock No. 147-849
  • Mfr. Part No. 3VA5225-6GD41-0AA0
Each
TWD97,041.00(exc. GST)
Temporarily out of stock
Better World
Siemens RCBO, 10A Current Rating, 2P Poles, 30mA Trip Sensitivity, SENTRON Range
  • RS Stock No. 211-9600
  • Mfr. Part No. 5SU1354-3KK10
Each
TWD8,211.00(exc. GST)
Temporarily out of stock
Schneider Electric 690V ac Circuit Trip Circuit Trip for use with Circuit Breaker
  • RS Stock No. 205-213
  • Mfr. Part No. C106TM080
Each
TWD19,775.00(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 16A, Fixed Mount
  • RS Stock No. 260-7614
  • Mfr. Part No. C11H3TM016B
Each
TWD26,559.00(exc. GST)
Temporarily out of stock
Eaton Eaton Distribution Parts Busbar Connector
  • RS Stock No. 253-565
  • Mfr. Part No. 263954 ZV-L2/L3-80A-36
1 Pack of 36
TWD980.00(exc. GST)
In Stock
RS PRO Thermal Circuit Breaker - 32 V dc, 240V ac Voltage Rating Snap In, 6A Current Rating
  • RS Stock No. 774-0017
Each
TWD242.00(exc. GST)
Temporarily out of stock
Siemens SENTRON Cover for use with SIRIUS
  • RS Stock No. 211-3865
  • Mfr. Part No. 8US1998-1CA00
Each (In a Pack of 20)
TWD51.50(exc. GST)
Temporarily out of stock
Siemens SENTRON Electronic Circuit Breaker 500A 3VA2, 4 channels
  • RS Stock No. 156-789
  • Mfr. Part No. 3VA2450-5JP42-0AF0
Each
TWD178,901.00(exc. GST)
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