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

1561 of 999+
Temporarily out of stock
Eaton Eaton Distribution Parts Busbar
  • RS stock no. 254-431
  • Mfr. Part No. 256704 ZSD-SA/12X5/CU/1P/B3/2
Each
R 465.71(exc. VAT)
In Stock
Legrand 4115 RCD, 40A, 1+N Pole, 30mA, Type A
  • RS stock no. 863-7773
  • Mfr. Part No. 4 115 55
Each
R 1,932.26(exc. VAT)
Temporarily out of stock
ABB System Pro M Compact S300P MCB, 1+N, 500mA, Type Z, 240V AC, 72V DC, 100 kA Breaking Capacity
  • RS stock no. 204-217
  • Mfr. Part No. 2CDS381103R0158
Each
R 2,525.67(exc. VAT)
Temporarily out of stock
Schneider Electric ComPacT Cover for use with ComPacT
  • RS stock no. 357-658
  • Mfr. Part No. C47067
Each
R 216.12(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON 5SL6 MCB, 3P, 13A Curve B, 400V AC, 72V DC
  • RS stock no. 212-9005
  • Mfr. Part No. 5SL6313-6
Each
R 1,641.16(exc. VAT)
In Stock
Schneider Electric Single Phase Surge Arrester, 20kA, 460V (Volts), Clip-On Mount
  • RS stock no. 130-972
  • Mfr. Part No. A9L20321
Each
R 19,187.86(exc. VAT)
In Stock
Schneider Electric, ComPacT new generation Circuit breaker 4P 160A, Breaking Capacity 25 kA, Fixed Mount
  • RS stock no. 110-316
  • Mfr. Part No. C12B44V160B
Each
R 45,523.19(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 800A, Breaking Capacity 55 kA, Fixed Mount
  • RS stock no. 209-5257
  • Mfr. Part No. 3VA2580-5HN32-0AA0
Each
R 54,130.29(exc. VAT)
Temporarily out of stock
Schneider Electric, PowerPact Circuit breaker 4P 50A, Breaking Capacity 18 kA, DIN Rail Mount
  • RS stock no. 357-740
  • Mfr. Part No. BDL46050LU
Each
R 12,852.24(exc. VAT)
Temporarily out of stock
ABB Tmax Conversion Kit for use with Tmax T
  • RS stock no. 237-5979
  • Mfr. Part No. 1SDA054844R1 PMP T5 400 4P
Each
R 4,509.13(exc. VAT)
Temporarily out of stock
HENSEL ENYBOARD Distribution Board, 63 A
  • RS stock no. 117-019
  • Mfr. Part No. KV 7109
Each
R 1,395.36(exc. VAT)
Temporarily out of stock
Better World
ABB, Tmax XT MCCB 4P 40A, Fixed Mount
  • RS stock no. 236-6792
  • Mfr. Part No. 1SDA068531R1 XT4H 160 Ekip LS/I 40A FF
Each
R 26,550.61(exc. VAT)
Temporarily out of stock
Siemens SENTRON Interlock for use with 3VA52
  • RS stock no. 161-606
  • Mfr. Part No. 3VA9238-0VK20
Each
R 616.57(exc. VAT)
In Stock
Phoenix Contact CB Electronic Circuit breaker 2A 24V CB E1, On Base Element
  • RS stock no. 217-6383
  • Mfr. Part No. 2800902
Each
R 1,064.87(exc. VAT)
Temporarily out of stock
Schneider Electric Acti9 3 Phase Distribution Board, 18 Way, 250 A
  • RS stock no. 207-266
  • Mfr. Part No. SE54B250
Each
R 19,379.15(exc. VAT)
Temporarily out of stock
ABB Tmax XT Trip Unit for use with Tmax XT
  • RS stock no. 236-6564
  • Mfr. Part No. 1SDA068041R1 DCL EKIP G-LS/I IN=160A XT
Each
R 11,927.72(exc. VAT)
In Stock
Rockwell Automation FB100 Busbar, 1000V
  • RS stock no. 282-2336
  • Mfr. Part No. FB100416Q1
Each (In a Pack of 4)
R 718.363(exc. VAT)
In Stock
Schneider Electric Acti9 A9F MCB, 4P, 50A Curve B, 440V AC, 250V DC, 30 kA Breaking Capacity
  • RS stock no. 288-7093
  • Mfr. Part No. A9F93450
Each
R 11,626.43(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON 5SY6 MCB, 1+N, 20A Curve B, 230V AC, 72V DC, 5 kA Breaking Capacity
  • RS stock no. 209-7530
  • Mfr. Part No. 5SY6520-6
Each
R 1,195.46(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 4P 160A, Breaking Capacity 10 kA, Fixed Mount
  • RS stock no. 347-112
  • Mfr. Part No. C16N47E160
Each
R 101,935.12(exc. VAT)
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