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

83 of 999+
Temporarily out of stock
Better World
Schneider Electric Acti 9 Connector Monoconnect for use with Acti 9/Multi 9, Horizontal Comb Busbar for 18 mm Pitch
  • RS stock no. 806-7405
  • Mfr. Part No. A9XPCM04
Each
R 366.59(exc. VAT)
Temporarily out of stock
HENSEL ENYBOARD Distribution Board, 101 A
  • RS stock no. 117-064
  • Mfr. Part No. KV FC 03
Each
R 180.17(exc. VAT)
In Stock
Siemens SENTRON 3VA9 Rotary Operator for use with 3VA15/25 1000
  • RS stock no. 218-1868
  • Mfr. Part No. 3VA9687-0FK21
Each
R 5,041.88(exc. VAT)
Temporarily out of stock
Rockwell Automation 1492-SP 1492-SPM MCB, 3P, 5A Curve D
  • RS stock no. 218-8875
  • Mfr. Part No. 1492-SPM3D050-N
Each
R 2,393.39(exc. VAT)
Temporarily out of stock
Hager MCCB 4P 160A, Breaking Capacity 2 kA, DIN Rail Mount
  • RS stock no. 144-4932
  • Mfr. Part No. HCA161H
Each
R 18,376.59(exc. VAT)
Temporarily out of stock
ABB RCBO, 40A Current Rating, 3P Poles, 30mA Trip Sensitivity, System Pro M Compact Range
  • RS stock no. 767-4434
  • Mfr. Part No. 2CSR273001R1405 DS203 M AC-B40/0,03
Each
R 6,642.18(exc. VAT)
In Stock
ABB System Pro M Compact S200 MCB, 1P, 16A Curve C, 253V AC, 72V DC, 6 kA Breaking Capacity
  • RS stock no. 489-0447
  • Mfr. Part No. 2CDS251001R0164 - S201C16
Each
R 428.39(exc. VAT)
In Stock
Better World
Schneider Electric, ComPacT NSX MCCB 4P 125A, Fixed Mount
  • RS stock no. 254-6329
  • Mfr. Part No. C12B4TM125L
Each
R 18,341.81(exc. VAT)
Temporarily out of stock
ABB Tmax XT Trip Unit for use with XT4
  • RS stock no. 236-7272
  • Mfr. Part No. 1SDA067378R1 TMD 20-300 XT4 3p
Each
R 9,920.71(exc. VAT)
In Stock
ABB System Pro M Compact S200 MCB, 3P, 80A Curve C, 440V AC, 6 kA Breaking Capacity
  • RS stock no. 231-9680
  • Mfr. Part No. 2CDS253001R0804 S203-C80 6kA 80A
1 Box of 1
R 3,833.07(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric RCBO, 10A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type C, Acti9 Range
  • RS stock no. 238-3320
  • Mfr. Part No. A9DS1610
Each
R 4,231.47(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)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 25A, Breaking Capacity 55 kA, Fixed Mount
  • RS stock no. 271-9865
  • Mfr. Part No. 3VA1125-5GD46-0AA0
Each
R 7,294.54(exc. VAT)
In Stock
ABB 4 Way Plastic Consumer Unit, 63A, IP65 Mistral65
  • RS stock no. 811-1880
  • Mfr. Part No. 1SL1200A00 65P04X12
Each
R 629.68(exc. VAT)
In Stock
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)
Limited stock
ABB SN201 MCB, 1+N, 32A Curve C, 230V AC, 4.5 kA Breaking Capacity
  • RS stock no. 186-3474
  • Mfr. Part No. 2CSS245102R0324
Each
R 316.06(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric Acti 9 C120H MCB, 3P, 80A Curve C, 440V AC, 375V DC, 15 kA, 30 kA Breaking Capacity
  • RS stock no. 776-3023
  • Mfr. Part No. A9N18468
Each
R 7,043.14(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric Acti9 iIG40 RCCB, 25A, 3+N Pole, 30mA, Type AC, 380 → 415V ac
  • RS stock no. 238-3465
  • Mfr. Part No. A9R67725
Each
R 7,953.54(exc. VAT)
Temporarily out of stock
Eaton xEffect MCB, 3+N, 3.5A Curve C
  • RS stock no. 230-0969
  • Mfr. Part No. 177464 FAZ6-C3,5/3N
Each
R 2,402.32(exc. VAT)
Temporarily out of stock
Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 630A, Breaking Capacity 50 kA, Plug In
  • RS stock no. 247-496
  • Mfr. Part No. 168482 NZMN3-VE630-SVE
Each
R 67,397.60(exc. VAT)
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