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

35885 Products showing for Circuit Breakers

9 of 999+
Better World
Schneider Electric Acti 9 iC60H MCB, 1P, 10A Curve D, 100 → 133V AC, 72V DC, 10 kA Breaking Capacity
  • RS Stock No. 791-3470
  • Mfr. Part No. A9F55110
Each
TWD909.00(exc. GST)
Better World
Siemens Sentron 5SY4 MCB, 1P, 16A Curve C, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 383-2030
  • Mfr. Part No. 5SY4116-7
Each
TWD899.00(exc. GST)
ETA Thermal Magnetic Circuit Breaker - 2210 Single Pole DIN Rail Mount, 16A Current Rating
  • RS Stock No. 282-8771
  • Mfr. Part No. 2210-T210-K0M1-H121-16A
Each
TWD1,524.00(exc. GST)
Better World
Siemens Sentron 5SY4 MCB, 3P, 3A Curve C, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 622-0092
  • Mfr. Part No. 5SY4303-7
Each
TWD3,496.00(exc. GST)
Better World
Siemens SENTRON 5SY4 MCB, 1P, 6A, Type A, 10 kA Breaking Capacity
  • RS Stock No. 202-7066
  • Mfr. Part No. 5SY4106-5
Each
TWD1,967.00(exc. GST)
Siemens SENTRON 5SJ4 MCB, 1P, 13A Curve B, 120V AC, 60V DC, 14 kA Breaking Capacity
  • RS Stock No. 212-8998
  • Mfr. Part No. 5SJ4113-6HG40
Each
TWD2,088.00(exc. GST)
Better World
Siemens Sentron 5SY4 MCB, 4P, 16A Curve B, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 124-3196
  • Mfr. Part No. 5SY4416-6
Each
TWD3,351.00(exc. GST)
Better World
Siemens Sentron 5SY4 MCB, 3P, 20A Curve D, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 772-1388
  • Mfr. Part No. 5SY4320-8
Each
TWD2,726.00(exc. GST)
ETA Thermal Circuit Breaker - 1180 Single Pole 250V Voltage Rating DIN Rail Mount, 2A Current Rating
  • RS Stock No. 458-8683
  • Mfr. Part No. 1180-01-2A
Each
TWD754.00(exc. GST)
Better World
Schneider Electric Acti 9 iC60H MCB, 1P, 4A Curve D, 100 → 133V AC, 72V DC, 10 kA Breaking Capacity
  • RS Stock No. 791-3467
  • Mfr. Part No. A9F55104
Each
TWD1,125.00(exc. GST)
Better World
Schneider Electric Multi 9 MCB, 1P, 6A Curve C, 10 kA Breaking Capacity
  • RS Stock No. 219-9150
  • Mfr. Part No. M9F42106
Each
TWD3,630.00(exc. GST)
Better World
Schneider Electric Multi 9 C60SP MCB, 3P, 2A Curve C, 440V AC, 15 kA Breaking Capacity
  • RS Stock No. 211-2372
  • Mfr. Part No. M9F22302
Each
TWD5,079.00(exc. GST)
Better World
Schneider Electric Multi 9 C60SP MCB, 4P, 20A Curve B, 440V AC, 15 kA Breaking Capacity
  • RS Stock No. 211-2350
  • Mfr. Part No. M9F21420
Each
TWD8,404.00(exc. GST)
Better World
Schneider Electric Cover for use with Compact Nsx, Easypact Cvs
  • RS Stock No. 221-1263
  • Mfr. Part No. LV432591
Each
TWD2,222.00(exc. GST)
Siemens SENTRON Wire Connector for use with 3VA5/6 400/600
  • RS Stock No. 269-7177
  • Mfr. Part No. 3VA9373-0JD13
Each (In a Pack of 3)
TWD10,722.00(exc. GST)
ABB System Pro M Compact S200M MCB, 1P, 63A Curve C, 253V AC, 72V DC, 10 kA Breaking Capacity
  • RS Stock No. 535-4217
  • Mfr. Part No. 2CDS271001R0634 S201M-C63
Each
TWD888.00(exc. GST)
ABB, SACE Tmax XT MCCB Molded Case Circuit Breaker 3P 32A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 232-0244
  • Mfr. Part No. 1SDA067392R1 XT1C 160 TMD 32A FF
Each
TWD9,324.00(exc. GST)
Better World
Schneider Electric Multi 9 MCB Mini Circuit Breaker, 1P, 8A Curve D, 277V AC
  • RS Stock No. 256-6786
  • Mfr. Part No. M9F43108
Each
TWD4,182.00(exc. GST)
Better World
Schneider Electric Multi 9 MCB Mini Circuit Breaker, 1P, 6A, Type Z, 277V AC
  • RS Stock No. 256-6790
  • Mfr. Part No. M9F44106
Each
TWD4,182.00(exc. GST)
Better World
Siemens Sentron 5SY4 MCB, 1P, 2A Curve C, 250V AC, 250V DC, 10 kA Breaking Capacity
  • RS Stock No. 622-0014
  • Mfr. Part No. 5SY4102-7
Each
TWD1,761.00(exc. GST)
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