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

210 of 999+
Better World
Schneider Electric Acti 9 MCB, 1P, 6A Curve C, 230V AC, 7.5 kA Breaking Capacity
  • RS Stock No. 200-6155
  • Mfr. Part No. A9PA2606
Each
TWD1,755.00(exc. GST)
ETA REX12 Electronic Circuit breaker 2A 24V REX12-T, DIN Rail Mount
  • RS Stock No. 175-0371
  • Mfr. Part No. REX12-TA2-107-DC24V-2A/2A
Each
TWD1,892.00(exc. GST)
ABB System Pro M Compact S300P MCB, 1+N, 63A Curve C, 240V AC, 72V DC, 25 kA Breaking Capacity
  • RS Stock No. 204-236
  • Mfr. Part No. 2CDS381103R0634
Each
TWD10,135.00(exc. GST)
ALPHA 630 DIN, Abdeckung Höhe=450mm, Bre
  • RS Stock No. 229-9882
  • Mfr. Part No. 8GK9601-3KK31
Each (In a Pack of 10)
TWD6,664.30(exc. GST)
Better World
ABB System Pro M Compact S200 MCB, 2P, 32A Curve K, 400V AC, 125V DC, 10 kA Breaking Capacity
  • RS Stock No. 746-8006
  • Mfr. Part No. 2CDS252001R0537 S202-K32
Each
TWD2,834.00(exc. GST)
ETA Thermal Circuit Breaker - 2210 Single Pole 277, 480V Voltage Rating DIN Rail Mount, 500mA Current Rating
  • RS Stock No. 282-8721
  • Mfr. Part No. 2210-T210-K0M1-H121-0.5A
Each
TWD1,740.00(exc. GST)
Better World
Siemens Sentron 5SY4 MCB, 3P, 2A Curve C, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 622-0086
  • Mfr. Part No. 5SY4302-7
Each
TWD3,278.00(exc. GST)
Better World
ABB System Pro M Compact S200 MCB, 3P, 50A Curve K, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 746-8034
  • Mfr. Part No. 2CDS253001R0577 S203-K50
Each
TWD4,471.00(exc. GST)
Better World
Siemens Sentron 5SY4 MCB, 2P, 16A Curve D, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 772-1313
  • Mfr. Part No. 5SY4216-8
Each
TWD2,573.00(exc. GST)
Better World
Schneider Electric iID RCCB, 100A, 4 Pole, 30mA, Type AC, 415V ac
  • RS Stock No. 248-3694
  • Mfr. Part No. A9R11491
Each
TWD27,008.00(exc. GST)
Murrelektronik Limited Electronic Circuit Breaker
  • RS Stock No. 123-6692
  • Mfr. Part No. 9000-41042-0100400
Each
TWD4,728.00(exc. GST)
Contactum 14 Way Steel Consumer Unit, 100A Defender
  • RS Stock No. 184-9129
  • Mfr. Part No. DDS14188MS-P01
Each
TWD8,093.00(exc. GST)
Better World
Schneider Electric Acti 9 3 Phase Distribution Board, 8 Way, 250 A
  • RS Stock No. 125-1413
  • Mfr. Part No. SEA9BN8PEV
Each
TWD10,970.00(exc. GST)
ABB MCCB Molded Case Circuit Breaker 4P 500A, Fixed Mount
  • RS Stock No. 250-4205
  • Mfr. Part No. 1SDA054493R1
Each
TWD297,602.00(exc. GST)
Better World
Schneider Electric Acti 9 iC60N MCB, 1P, 4A Curve C, 240V AC, 72V DC, 50 kA Breaking Capacity
  • RS Stock No. 776-3449
  • Mfr. Part No. A9F74104
Each
TWD1,915.00(exc. GST)
Better World
Schneider Electric, Acti 9, 63A, Energy Sensor, 1VA, Wireless
  • RS Stock No. 134-8659
  • Mfr. Part No. A9MEM1521
Each
TWD4,816.00(exc. GST)
ABB System Pro M Compact S200M MCB, 1P, 32A Curve K, 230/400V AC, 72V DC, 15 kA Breaking Capacity
  • RS Stock No. 200-016
  • Mfr. Part No. 2CDS271001R0537
Each
TWD4,324.00(exc. GST)
Better World
Schneider Electric, ComPacT NSX MCCB 3P 100A, Fixed Mount
  • RS Stock No. 254-6284
  • Mfr. Part No. C10F32D100
Each
TWD25,969.00(exc. GST)
Sensata Airpax Airpax Thermal Circuit Breaker - PR11 Single Pole Panel Mount, 5A Current Rating
  • RS Stock No. 275-0437
  • Mfr. Part No. PR11-62-5.00A-XX-V
Each
TWD643.00(exc. GST)
Eaton Electronic Circuit breaker 4A
  • RS Stock No. 774-0174
  • Mfr. Part No. 121724 PKE-XTU-4
Each
TWD4,450.00(exc. GST)
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