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

39047 Products showing for Circuit Breakers

161 of 999+
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 800A 1SDA07, 4 channels
  • RS stock no. 259-3439
  • Mfr. Part No. 1SDA071382R1
Each
R 109,161.25(exc. VAT)
Temporarily out of stock
HENSEL ENYBOARD Distribution Board, 41 A
  • RS stock no. 117-637
  • Mfr. Part No. RK 0614 T
Each
R 1,380.55(exc. VAT)
Temporarily out of stock
ABB SMISSLINE Busbar for Smissline TP
  • RS stock no. 246-2331
  • Mfr. Part No. 2CCF800243R0001
Each
R 308.48(exc. VAT)
Temporarily out of stock
Legrand Connecting Terminals for use with Circuit Breaker
  • RS stock no. 266-3720
  • Mfr. Part No. 405207
1 Box of 10
R 2,481.35(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 50A, Breaking Capacity 55 kA, DIN Rail Mount
  • RS stock no. 271-9364
  • Mfr. Part No. 3VA1150-5GD42-0AA0
Each
R 6,751.08(exc. VAT)
In Stock
Better World
Siemens SENTRON 5SY4 MCB, 3+N, 25A Curve D, 400V AC, 72V DC, 10 kA Breaking Capacity
  • RS stock no. 209-6606
  • Mfr. Part No. 5SY4625-8
Each
R 3,483.19(exc. VAT)
Temporarily out of stock
Eaton xEffect xEffect - FAZ-T MCB, 3+N, 40A Curve B, 415V AC, 60V DC, 15 kA Breaking Capacity
  • RS stock no. 129-193
  • Mfr. Part No. 142518 FAZT-B40/3N
Each
R 5,808.24(exc. VAT)
Temporarily out of stock
Phoenix Contact 3 Phase Surge Protector, 50kA, 250V ac, DIN Rail Mount
  • RS stock no. 712-5276
  • Mfr. Part No. 2800188
Each
R 12,225.61(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON for use with 3VA1 and 3VA20 up → 3VA25
  • RS stock no. 210-9429
  • Mfr. Part No. 3VA9988-0BL32
Each
R 1,527.60(exc. VAT)
In Stock
Better World
ABB System Pro M Compact S200 MCB, 1P, 50A Curve D, 253V AC, 72V DC, 6 kA Breaking Capacity
  • RS stock no. 527-9526
  • Mfr. Part No. 2CDS251001R0501 S201-D50
Each
R 459.77(exc. VAT)
In Stock
Legrand DX3 RCD, 10A, 1+N Pole, 30mA
  • RS stock no. 731-9831
  • Mfr. Part No. 4 107 12
Each
R 6,686.29(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 4P 160A, Fixed Mount
  • RS stock no. 260-7693
  • Mfr. Part No. C12F4TM160B
Each
R 22,031.60(exc. VAT)
Temporarily out of stock
ABB Tmax XT Rear Terminal for use with Circuit Breaker
  • RS stock no. 232-0164
  • Mfr. Part No. 1SDA066271R1 R FP XT2 4PCS
Each
R 1,629.75(exc. VAT)
Temporarily out of stock
Allen Bradley 140G Cover Frame for use with 140G, 140MG Circuit Breaker
  • RS stock no. 255-1662
  • Mfr. Part No. 140G-J3X3
Each
R 19,131.26(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 20A, Breaking Capacity 36 kA
  • RS stock no. 210-1634
  • Mfr. Part No. 3VA1120-4EF46-0AA0
Each
R 7,737.28(exc. VAT)
Temporarily out of stock
Legrand DPX-IS Adapter for use with DPX-IS250
  • RS stock no. 266-0299
  • Mfr. Part No. 0 262 39
Each
R 690.79(exc. VAT)
Temporarily out of stock
Legrand DX3 Circuit Breaker, 2P, 2A Curve C, 400V AC, 16 kA Breaking Capacity
  • RS stock no. 266-1338
  • Mfr. Part No. 409214
Each
R 4,471.12(exc. VAT)
Temporarily out of stock
Eaton RCCB, 40A, 2 Pole, 100mA, Type S, 230V ac
  • RS stock no. 227-0717
  • Mfr. Part No. 264284 PFGM-40/2/01-S
Each
R 5,660.58(exc. VAT)
Temporarily out of stock
ABB S803S MCB, 3P, 40A, UC-K, 750V DC, 50 kA Breaking Capacity
  • RS stock no. 140-281
  • Mfr. Part No. 2CCS863001R1557
Each
R 9,955.53(exc. VAT)
Temporarily out of stock
Eaton xComfort KLV Distribution Board Enclosure
  • RS stock no. 124-779
  • Mfr. Part No. 178808 KLV-24HWP-F
Each
R 3,747.05(exc. VAT)
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