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

39049 Products showing for Circuit Breakers

93 of 999+
ABB Flange for use with Tmax XT
  • RS stock no. 236-6850
  • Mfr. Part No. 1SDA068654R1
Each
R 1,095.16(exc. VAT)
Sensata Airpax Airpax Thermal Circuit Breaker - M39019 Single Pole Panel Mount, 20A Current Rating
  • RS stock no. 275-0425
  • Mfr. Part No. M39019/02-258
Each
R 19,586.51(exc. VAT)
Better World
Siemens 5sV3 RCCB, 80A, 4 Pole, 30mA, Type A, 500V ac
  • RS stock no. 211-9657
  • Mfr. Part No. 5SV3357-6
Each
R 33,711.40(exc. VAT)
Eaton, Eaton Moeller series NZM MCCB Molded Case Circuit Breaker 3P 300A, Breaking Capacity 5 kA, Plug In
  • RS stock no. 230-974
  • Mfr. Part No. 110282 NZMN2-A300-BT
Each
R 34,156.61(exc. VAT)
Siemens 230V ac Circuit Trip
  • RS stock no. 223-7671
  • Mfr. Part No. 5TT4474-0
Each
R 4,781.66(exc. VAT)
ABB IEC Range Cover for use with Busbars
  • RS stock no. 250-4753
  • Mfr. Part No. 2CDL300001R0012
1 Box of 50
R 516.06(exc. VAT)
ABB SD200 MCB, 2P, 40A, 462V AC, 131V DC
  • RS stock no. 191-9453
  • Mfr. Part No. 2CDD282101R0040 SD202/40
Each
R 598.55(exc. VAT)
Hager Electronic Circuit Breaker 32A NQN, 3 channels
  • RS stock no. 251-2083
  • Mfr. Part No. NQN332
Each
R 6,429.38(exc. VAT)
Better World
ABB System Pro M Compact S200 MCB, 1P, 10A Curve B, 230 V, 400 V AC, 10 kA Breaking Capacity
  • RS stock no. 231-9660
  • Mfr. Part No. 2CDS251001R0105 S201 B 10A - 10 KA
1 Box of 1
R 433.77(exc. VAT)
ABB MCCB 4P 200A, Breaking Capacity 27 kA
  • RS stock no. 192-0831
  • Mfr. Part No. 1SDA068069R1
Each
R 21,127.92(exc. VAT)
Siemens SENTRON 5SY4 MCB, 2P, 20A, Type A, 230V AC, 60V DC, 20 kA Breaking Capacity
  • RS stock no. 610-435
  • Mfr. Part No. 5SY4520-5
Each
R 1,772.24(exc. VAT)
Siemens SENTRON 5SY4 MCB, 2P, 13A, Type A, 230V AC, 60V DC, 20 kA Breaking Capacity
  • RS stock no. 610-434
  • Mfr. Part No. 5SY4513-5
Each
R 1,699.44(exc. VAT)
Better World
Schneider Electric Acti 9 C60H-DC MCB, 1P, 2A Curve C, 250V DC
  • RS stock no. 772-1505
  • Mfr. Part No. A9N61502
Each
R 581.69(exc. VAT)
Europa EUC1P EUC MCB, 1P, 63A Curve C, 230V AC, 10 kA Breaking Capacity
  • RS stock no. 849-6529
  • Mfr. Part No. EUC1P63C
Each
R 186.05(exc. VAT)
Better World
ABB, Tmax XT MCCB 3P 12.5A, Fixed Mount
  • RS stock no. 236-7426
  • Mfr. Part No. 1SDA067681R1 XT2V 160 TMD 12.5A FF
Each
R 15,663.02(exc. VAT)
ABB RCBO, 6A Current Rating, 2P Poles, 100mA Trip Sensitivity, System Pro M Compact Range
  • RS stock no. 201-6902
  • Mfr. Part No. 2CSR255180R2064
Each
R 3,280.95(exc. VAT)
Siemens ALPHA Terminal for use with Bars 16 x 3/16 x 4 mm Conductor Connection
  • RS stock no. 226-2879
  • Mfr. Part No. 8JH4124
Each (In a Pack of 10)
R 117.065(exc. VAT)
Better World
Siemens Sentron 5SY4 MCB, 2P, 10A Curve B, 400V AC, 10 kA Breaking Capacity
  • RS stock no. 772-1300
  • Mfr. Part No. 5SY4210-6
Each
R 1,418.95(exc. VAT)
Better World
ABB System Pro M Compact S200 MCB, 2P, 6A Curve B, 400V AC, 6 kA Breaking Capacity
  • RS stock no. 746-7558
  • Mfr. Part No. 2CDS252001R0065 S202-B6
Each
R 1,135.69(exc. VAT)
ABB Cover for use with S6, T6
  • RS stock no. 250-4498
  • Mfr. Part No. 1SDA014039R1
Each
R 2,217.36(exc. VAT)
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