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

19 of 999+
ABB 8 Way Plastic Consumer Unit, 63A, IP65 Mistral65
  • RS stock no. 811-1899
  • Mfr. Part No. 1SL1201A00 65P08X12
Each
R 834.44(exc. VAT)
Schneider Electric, ComPact MCCB Molded Case Circuit Breaker 3P 150A, Fixed Mount
  • RS stock no. 221-1045
  • Mfr. Part No. LV433502
Each
R 44,485.96(exc. VAT)
ABB Earth & Neutral Terminal Bar for use with MCB
  • RS stock no. 232-0026
  • Mfr. Part No. GJI2320131R0001 SZ-KLB 8
1 Box of 1
R 193.56(exc. VAT)
ABB PS4 4 Phase Busbar, 230 → 400V, 17.5mm Pitch
  • RS stock no. 225-5982
  • Mfr. Part No. 2CDL240101R1612 PS4/12/16
Each
R 558.61(exc. VAT)
Better World
Schneider Electric Multi 9 MCB Mini Circuit Breaker, 2P, 3A Curve D, 240V AC
  • RS stock no. 256-6769
  • Mfr. Part No. M9F23203
Each
R 2,414.26(exc. VAT)
ETA Thermal Circuit Breaker - 3130 Single Pole 50 V dc, 250V ac Voltage Rating Snap In, 5A Current Rating
  • RS stock no. 212-2130
  • Mfr. Part No. 3130-F110-P7T1-W14QR7-5A
Each
R 738.40(exc. VAT)
ABB, SACE Tmax XT MCCB Molded Case Circuit Breaker 3P 160A, Breaking Capacity 3 kA, Fixed Mount
  • RS stock no. 231-9295
  • Mfr. Part No. 1SDA066809R1 XT1B 160 TMD 160A FF
Each
R 7,846.57(exc. VAT)
Better World
Schneider Electric Acti 9 C60H-DC MCB, 2P, 16A Curve C, 500V DC
  • RS stock no. 772-1530
  • Mfr. Part No. A9N61531
Each
R 1,518.03(exc. VAT)
TE Connectivity Thermal Circuit Breaker - W23 Single Pole 50 V dc, 250V ac Voltage Rating, 15A Current Rating
  • RS stock no. 782-0860
  • Mfr. Part No. W23-X1A1G-15
Each
R 777.95(exc. VAT)
TE Connectivity Thermal Circuit Breaker - W23 Single Pole 50 V dc, 250V ac Voltage Rating, 40A Current Rating
  • RS stock no. 782-7953
  • Mfr. Part No. W23-X1A1G-40
Each
R 729.27(exc. VAT)
Schneider Electric Acti 9 IC60a MCB, 2P, 10A, Type AC
  • RS stock no. 209-1309
  • Mfr. Part No. A9F64210
Each
R 1,198.87(exc. VAT)
Phoenix Contact Electronic Device Circuit Breaker Electronic Circuit breaker 8A 24V PTCB, 1 channels , DIN Rail Mount
  • RS stock no. 207-2796
  • Mfr. Part No. 2908262
Each
R 1,216.08(exc. VAT)
Better World
Schneider Electric Acti 9 iC60N MCB, 3P, 25A Curve C, 400V AC, 12 → 144V DC, 6 kA Breaking Capacity
  • RS stock no. 734-9157
  • Mfr. Part No. A9F77325
Each
R 1,370.49(exc. VAT)
Better World
Schneider Electric Multi 9 MCB, 1P, 5A Curve C, 10 kA Breaking Capacity
  • RS stock no. 219-9116
  • Mfr. Part No. M9F22105
Each
R 749.22(exc. VAT)
Better World
Schneider Electric Acti 9 2 Phase Busbar, 415V ac, 18mm Pitch
  • RS stock no. 776-2724
  • Mfr. Part No. A9XPH224
Each
R 1,212.14(exc. VAT)
Allen Bradley 1492 1492-SPM MCB, 1P, 10A Curve D, 277V AC, 48V DC, 10 kA Breaking Capacity
  • RS stock no. 125-1500
  • Mfr. Part No. 1492-SPM1D100
Each
R 502.35(exc. VAT)
ABB, SACE Tmax T MCCB Molded Case Circuit Breaker 4P 400A, Breaking Capacity 20 kA, Fixed Mount
  • RS stock no. 232-0085
  • Mfr. Part No. 1SDA054325R1 T5N400 FF PR221-LS 400A
Each
R 39,086.39(exc. VAT)
Eaton, xEnergy MCCB 3P 100A, Breaking Capacity 25 kA, Fixed Mount
  • RS stock no. 454-8073
  • Mfr. Part No. 259079 NZMB1-A100
Each
R 7,380.48(exc. VAT)
Eaton Handle, Lockable for use with N(S)2(-4) Series, NZM2(-4) Series, PN2(-4) Series
  • RS stock no. 537-5725
  • Mfr. Part No. 260180 NZM2-XTVDVR
Each
R 2,642.89(exc. VAT)
ABB Change Over Switch Circuit Trip
  • RS stock no. 186-3449
  • Mfr. Part No. 2CCA703040R0001
Each
R 370.19(exc. VAT)
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