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

8 of 999+
Better World
Schneider Electric Busbar Tap-Off Unit with Circuit Breaker, KSB Series
  • RS Stock No. 219-8949
  • Mfr. Part No. KSB32CM55
Each
TWD5,758.00(exc. GST)
Better World
Schneider Electric Acti 9 iC60H MCB, 3P, 25A Curve D, 440V AC, 100 → 133V DC, 10 kA Breaking Capacity
  • RS Stock No. 791-3571
  • Mfr. Part No. A9F55325
Each
TWD6,600.00(exc. GST)
ETA Thermal Circuit Breaker - 4130 Single Pole 240V Voltage Rating Panel Mount, 35A Current Rating
  • RS Stock No. 405-9214
  • Mfr. Part No. 4130-G211-K4M1-35A
Each
TWD2,633.00(exc. GST)
Schneider Electric Thermal Circuit Breaker - GB2 1P + N Pole 250V ac Voltage Rating DIN Rail Mount, 10A Current Rating
  • RS Stock No. 610-0910
  • Mfr. Part No. GB2CD16
Each
TWD1,279.00(exc. GST)
Better World
Schneider Electric Acti 9 iC60H MCB, 3P, 20A Curve B, 440V AC, 100 → 133V DC, 10 kA Breaking Capacity
  • RS Stock No. 791-3225
  • Mfr. Part No. A9F53320
Each
TWD3,708.00(exc. GST)
Better World
Schneider Electric Multi 9 C60SP MCB, 3P, 32A Curve C, 440V AC, 15 kA Breaking Capacity
  • RS Stock No. 211-2376
  • Mfr. Part No. M9F22332
Each
TWD4,765.00(exc. GST)
Better World
Siemens Surge Protector, Clip-On Mount
  • RS Stock No. 203-2596
  • Mfr. Part No. 3RT2926-1JJ00
Each
TWD1,173.00(exc. GST)
ETA Thermal Magnetic Circuit Breaker - 201 Single Pole, 5A Current Rating
  • RS Stock No. 333-265
  • Mfr. Part No. 201-5A
Each
TWD1,196.00(exc. GST)
Phoenix Contact Surge Protector, 5kA, 60V dc, Surface Mount Mount
  • RS Stock No. 241-6053
  • Mfr. Part No. 2749628
Each
TWD4,843.00(exc. GST)
Eaton RCCB, 63A, 2 Pole, 30mA, Type AC, 230V ac
  • RS Stock No. 227-0737
  • Mfr. Part No. 264286 PFGM-63/2/003
Each
TWD2,328.00(exc. GST)
Better World
Schneider Electric Acti 9 iC60H MCB, 3P, 25A Curve C, 440V AC, 100 → 133V DC, 10 kA Breaking Capacity
  • RS Stock No. 791-3394
  • Mfr. Part No. A9F54325
Each
TWD5,185.00(exc. GST)
ETA Thermal Circuit Breaker - 1658 Single Pole 250V Voltage Rating Panel Mount, 6A Current Rating
  • RS Stock No. 344-5327
  • Mfr. Part No. 1658-G21-02-P10-6A
Each
TWD160.00(exc. GST)
Siemens, SENTRON MCCB 1P 15A, Breaking Capacity 18 kA, Fixed Mount
  • RS Stock No. 147-757
  • Mfr. Part No. 3VA5195-6ED11-1AA0
Each
TWD9,840.00(exc. GST)
Eaton RCCB, 40A, 4 Pole, 30mA, Type B, 240/415V ac
  • RS Stock No. 183-3547
  • Mfr. Part No. 167893 FRCDM-40/4/003-G/B
Each
TWD26,498.00(exc. GST)
Altech Thermal Circuit Breaker - V-EA 2 Pole 277V Voltage Rating DIN Rail Mount, 5A Current Rating
  • RS Stock No. 899-1806
  • Mfr. Part No. 2E5UM
Each
TWD1,059.00(exc. GST)
Better World
Siemens, SENTRON MCCB 3P 100A, Breaking Capacity 25 kA
  • RS Stock No. 209-6960
  • Mfr. Part No. 3VA1110-3ED32-0AA0
Each
TWD16,180.00(exc. GST)
Better World
Schneider Electric Multi 9 MCB, 2P, 13A Curve C, 10 kA Breaking Capacity
  • RS Stock No. 219-9127
  • Mfr. Part No. M9F22213
Each
TWD5,229.00(exc. GST)
Better World
Schneider Electric Multi 9 MCB, 1P, 2A Curve C, 10 kA Breaking Capacity
  • RS Stock No. 219-9147
  • Mfr. Part No. M9F42102
Each
TWD3,792.00(exc. GST)
Better World
Siemens Sentron 5SY4 MCB, 1P, 6A Curve D, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 772-1259
  • Mfr. Part No. 5SY4106-8
Each
TWD2,229.00(exc. GST)
Eaton xEffect MCB, 3P, 20A Curve D, 240 → 415V AC, 10 kA Breaking Capacity
  • RS Stock No. 847-3557
  • Mfr. Part No. 278897 FAZ-D20/3
Each
TWD3,397.00(exc. GST)
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