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

39059 Products showing for Circuit Breakers

20 of 999+
Schneider Electric A9R RCCB, 63A, 2 Pole, 30mA, Type AC, 220 → 240V ac
  • RS stock no. 654-561
  • Mfr. Part No. A9R41263
Each
R 6,487.51(exc. VAT)
Siemens SENTRON 5SJ MCB, 1P, 20A
  • RS stock no. 232-2237
  • Mfr. Part No. 5SJ4120-7HG40
Each
R 986.15(exc. VAT)
Better World
Schneider Electric Acti 9 iC60N MCB, 3P, 6A Curve C, 440V AC, 180V DC, 6 kA Breaking Capacity
  • RS stock no. 776-3496
  • Mfr. Part No. A9F77306
Each
R 1,356.42(exc. VAT)
Better World
Schneider Electric Multi 9 C60SP MCB, 1P, 8A Curve C, 415V AC, 60V DC, 20 kA Breaking Capacity
  • RS stock no. 211-2356
  • Mfr. Part No. M9F22108
Each
R 584.65(exc. VAT)
ABB, SACE Tmax XT MCCB Molded Case Circuit Breaker 3P 150A, Fixed Mount
  • RS stock no. 231-9325
  • Mfr. Part No. 1SDA075115R1 XT3N 225 TMF 150-1500 3p F
Each
R 12,160.63(exc. VAT)
Phoenix Contact Industrial Surge Protection, 100kA
  • RS stock no. 224-9866
  • Mfr. Part No. 2905470
Each
R 24,599.65(exc. VAT)
Schneider Electric Motor Mechanism for use with ComPacT, ComPact Compact NSX250 DC, PowerPact
  • RS stock no. 276-8779
  • Mfr. Part No. LV429434
Each
R 19,444.90(exc. VAT)
Murrelektronik Limited Mico Pro Electronic Circuit Breaker 1 / 2 / 3 / 4 / 5 / 6 / 7 / 8 / 9 / 10A 12 / 24V MICO, 4
  • RS stock no. 270-9602
  • Mfr. Part No. 9000-41094-0101000
Each
R 3,563.09(exc. VAT)
Better World
Schneider Electric RCBO, 20A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type B, Acti 9 Range
  • RS stock no. 790-9213
  • Mfr. Part No. A9D31820
Each
R 3,809.60(exc. VAT)
Schneider Electric, Wiser Energy PowerTag, 63A, Energy Sensor, 2VA, Wireless
  • RS stock no. 276-8964
  • Mfr. Part No. R9M60
Each
R 1,663.93(exc. VAT)
Murrelektronik Limited Electronic Circuit Breaker
  • RS stock no. 123-6689
  • Mfr. Part No. 9000-41034-0100600
Each
R 3,564.54(exc. VAT)
TE Connectivity Thermal Circuit Breaker - W23 Single Pole 50 V dc, 250V ac Voltage Rating, 20A Current Rating
  • RS stock no. 782-0864
  • Mfr. Part No. W23-X1A1G-20
Each
R 717.08(exc. VAT)
Better World
Schneider Electric Acti 9 Acti9 iDT40K MCB, 1+N, 20A Curve C, 230V AC
  • RS stock no. 238-3413
  • Mfr. Part No. A9P71620
Each
R 743.06(exc. VAT)
Better World
Schneider Electric RCBO, 20A Current Rating, 1P Poles, 30mA Trip Sensitivity, Acti9 Range
  • RS stock no. 201-2237
  • Mfr. Part No. A9DC3620
Each
R 4,952.37(exc. VAT)
Schneider Electric, ComPacT MCCB 3P 400A, Fixed Mount
  • RS stock no. 260-8121
  • Mfr. Part No. C40N3
Each
R 18,674.17(exc. VAT)
Spelsberg Consumer Unit
  • RS stock no. 548-8219
  • Mfr. Part No. 735-536/21
Each
R 4,092.05(exc. VAT)
Better World
Schneider Electric ComPact NSX Snap In Nut for use with Compact NSX 160/250
  • RS stock no. 219-9368
  • Mfr. Part No. LV430554
Each
R 1,221.04(exc. VAT)
TE Connectivity Thermal Circuit Breaker - W58 Single Pole 50 V dc, 250V ac Voltage Rating, 20A Current Rating
  • RS stock no. 782-7984
  • Mfr. Part No. W58-XB1A4A-20
Each
R 301.04(exc. VAT)
ABB 72 Way Plastic Consumer Unit, 125A, IP65 Mistral65
  • RS stock no. 811-1919
  • Mfr. Part No. 1SL1209A00 65P18X42
Each
R 4,326.41(exc. VAT)
Better World
Siemens Sentron 5SY4 MCB, 2P, 4A Curve D, 400V AC, 10 kA Breaking Capacity
  • RS stock no. 772-1284
  • Mfr. Part No. 5SY4204-8
Each
R 1,662.51(exc. VAT)
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