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

101 of 999+
Better World
Schneider Electric iID RCCB, 40A, 4 Pole, 300mA, Type B-SI, 400V ac
  • RS Stock No. 248-3727
  • Mfr. Part No. A9Z65440
Each
TWD57,543.00(exc. GST)
Better World
Siemens, Sentron MCCB Molded Case Circuit Breaker 4P 40A, Breaking Capacity 2.5 kA
  • RS Stock No. 245-390
  • Mfr. Part No. 3VA6140-7KL41-2AA0
Each
TWD105,365.00(exc. GST)
Siemens Surge Protector, Through Hole Mount
  • RS Stock No. 203-2171
  • Mfr. Part No. 3RA2923-3DA1
Each (In a Pack of 5)
TWD754.60(exc. GST)
Phoenix Contact Three Phase Surge Arrester, 30kA, = 2.9kV, DIN Rail Mount
  • RS Stock No. 249-9524
  • Mfr. Part No. 2920269
Each
TWD13,347.00(exc. GST)
Schurter Thermal Circuit Breaker - T11-211 Single Pole 48 V dc, 240V ac Voltage Rating Panel Mount, 3A Current Rating
  • RS Stock No. 868-8778
  • Mfr. Part No. 4400.0010
Each
TWD334.00(exc. GST)
Schneider Electric, PowerPact Circuit breaker 2P 25A, Breaking Capacity 18 kA, Clip-On
  • RS Stock No. 339-240
  • Mfr. Part No. BDL26025LU
Each
TWD13,807.00(exc. GST)
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 1P 16A, Breaking Capacity 55 kA, DIN Rail Mount
  • RS Stock No. 271-9461
  • Mfr. Part No. 3VA1196-5ED12-0AA0
Each
TWD7,704.00(exc. GST)
Better World
Schneider Electric TeSys Thermal Circuit Breaker - TeSyS GV 3 Pole 690V ac Voltage Rating, 115A Current Rating
  • RS Stock No. 175-1462
  • Mfr. Part No. GV4LE115B
Each
TWD15,766.00(exc. GST)
Better World
Schneider Electric 250V ac Push Button Push Button
  • RS Stock No. 790-9187
  • Mfr. Part No. A9E18038
Each
TWD1,416.00(exc. GST)
Better World
Siemens, SENTRON MCCB 4P 20A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 271-9815
  • Mfr. Part No. 3VA1120-3GE42-0AA0
Each
TWD17,043.00(exc. GST)
Schneider Electric, Compact MCCB 3P 1.6kA, Fixed Mount
  • RS Stock No. 247-1794
  • Mfr. Part No. 33410
Each
TWD210,940.00(exc. GST)
Better World
Siemens, SENTRON MCCB 3P 100A, Breaking Capacity 200 kA, Fixed Mount
  • RS Stock No. 270-3933
  • Mfr. Part No. 3VA2110-0KP36-0AA0
Each
TWD91,530.00(exc. GST)
Siemens, SENTRON MCCB 3P 125A, Breaking Capacity 10 kA, Fixed Mount
  • RS Stock No. 147-962
  • Mfr. Part No. 3VA5212-6ED31-0AA0
Each
TWD54,163.00(exc. GST)
Better World
Siemens, SENTRON MCCB 3P 400A, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 249-770
  • Mfr. Part No. 3VA6440-7HN31-0AA0
Each
TWD163,105.00(exc. GST)
Better World
ABB Emax2 Electronic Circuit Breaker 1.6kA Ekip Dip LSI, 3 channels
  • RS Stock No. 259-3157
  • Mfr. Part No. 1SDA071012R1
Each
TWD283,403.00(exc. GST)
Better World
Siemens, 3VA1 MCCB 3P 63A, Breaking Capacity 55 kA, Fixed Mount
  • RS Stock No. 210-3335
  • Mfr. Part No. 3VA1163-5EE32-0AA0
Each
TWD15,619.00(exc. GST)
Better World
Siemens, SENTRON MCCB 4P 63A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 271-9379
  • Mfr. Part No. 3VA1163-3GD42-0AA0
Each
TWD17,503.00(exc. GST)
Better World
Schneider Electric Acti 9 Acti9 iDT40N MCB, 1P, 1A Curve C, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 191-6103
  • Mfr. Part No. A9P24601
Each
TWD4,003.00(exc. GST)
Better World
Schneider Electric Acti 9 iC60H MCB, 2P, 4A Curve D, 440V AC, 100 → 133V DC, 10 kA Breaking Capacity
  • RS Stock No. 791-3515
  • Mfr. Part No. A9F55204
Each
TWD5,396.00(exc. GST)
Better World
Siemens, SENTRON MCCB 3P 400A, Breaking Capacity 65 kA, Fixed Mount
  • RS Stock No. 249-835
  • Mfr. Part No. 3VA6440-6JQ31-2AA0
Each
TWD221,687.00(exc. GST)
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