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

34 of 999+
In Stock
ABB, Pro M MCCB 3P 125A, Breaking Capacity 6 kA, DIN Rail Mount
  • RS stock no. 538-3849
  • Mfr. Part No. 2CDE283001R0125 E203/125R
Each
R 2,387.68(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric, PowerPact MCCB Molded Case Circuit Breaker 3P 600A
  • RS stock no. 221-1095
  • Mfr. Part No. NLDF36600U31XTW
Each
R 62,669.23(exc. VAT)
Temporarily out of stock
ABB, SACE Tmax XT MCCB Molded Case Circuit Breaker 4P 800A, Fixed Mount
  • RS stock no. 231-9349
  • Mfr. Part No. 1SDA100731R1 XT6N800 TMA800-8000 4pFF N
Each
R 52,286.47(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric, ComPacT NSX MCCB 3P 32A, Fixed Mount
  • RS stock no. 254-6276
  • Mfr. Part No. C10B3TM032
Each
R 11,445.07(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 500A, Fixed Mount
  • RS stock no. 260-8247
  • Mfr. Part No. C63V31M500
Each
R 91,578.87(exc. VAT)
Temporarily out of stock
Hager NFN MCB, 4P, 63A Curve C, 240 → 400V AC, 10 kA Breaking Capacity
  • RS stock no. 144-4728
  • Mfr. Part No. NFN463
Each
R 8,887.60(exc. VAT)
In Stock
Better World
Siemens, SENTRON Circuit breaker 3P 630A, Breaking Capacity 85 kA, DIN Rail Mount
  • RS stock no. 224-7918
  • Mfr. Part No. 3VA2463-5HL32-0AA0
Each
R 34,132.64(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 25A, Fixed Mount
  • RS stock no. 260-9462
  • Mfr. Part No. C10H3TM025
Each
R 17,417.04(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 25A, Fixed Mount
  • RS stock no. 260-9459
  • Mfr. Part No. C10H3MA025
Each
R 15,835.25(exc. VAT)
Temporarily out of stock
Better World
ABB, SACE Tmax XT MCCB Molded Case Circuit Breaker 3P 250A, Breaking Capacity 65 kA, Fixed Mount
  • RS stock no. 232-0271
  • Mfr. Part No. 1SDA068126R1 XT4N 250 Ekip LS/I 250A FF
Each
R 18,725.94(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 630A, Fixed Mount
  • RS stock no. 260-8212
  • Mfr. Part No. C63H32D630
Each
R 103,010.63(exc. VAT)
In Stock
ABB, SACE Tmax T MCCB Molded Case Circuit Breaker 3P 1kA, Fixed Mount
  • RS stock no. 232-0156
  • Mfr. Part No. 1SDA062738R1 T7S 1000A PR231-LS/I FF
Each
R 70,237.22(exc. VAT)
In Stock
ABB System Pro M Compact S200M MCB, 3P, 63A Curve C, 440V AC, 125V DC, 10 kA Breaking Capacity
  • RS stock no. 535-4352
  • Mfr. Part No. 2CDS273001R0634 S203M-C63
Each
R 2,294.53(exc. VAT)
Temporarily out of stock
Better World
Siemens SIRIUS Electronic Circuit Breaker 20A 3RV2, 3 channels , DIN Rail Mount
  • RS stock no. 160-227
  • Mfr. Part No. 3RV2331-4BC10
Each
R 3,443.87(exc. VAT)
Unavailable
Schneider Electric Acti 9 iC60N MCB Mini Circuit Breaker1P, 2A Curve C, 100 → 133V AC, 12 → 48V DC, 15
  • RS stock no. 790-8847
  • Mfr. Part No. A9F44102
Each
R 406.45(exc. VAT)
Temporarily out of stock
ABB, T7H MCCB 4P 1kA, Fixed Mount
  • RS stock no. 237-6020
  • Mfr. Part No. 1SDA062779R1 T7H 1000A PR232-LSI FF
Each
R 100,114.62(exc. VAT)
In Stock
Better World
Schneider Electric Acti 9 iC60H MCB, 2P, 6A Curve D, 440V AC, 100 → 133V DC, 10 kA Breaking Capacity
  • RS stock no. 791-3518
  • Mfr. Part No. A9F55206
Each
R 2,099.41(exc. VAT)
Limited stock
ABB SN201 MCB, 1+N, 20A Curve C, 230V AC, 4.5 kA Breaking Capacity
  • RS stock no. 186-3472
  • Mfr. Part No. 2CSS245102R0204
Each
R 273.92(exc. VAT)
Temporarily out of stock
Better World
ABB, XT3N MCCB 4P 125A, Fixed Mount
  • RS stock no. 236-6582
  • Mfr. Part No. 1SDA068067R1 XT3N 250 TMD 125A FF
Each
R 15,237.92(exc. VAT)
In Stock
ABB RCBO, 10A Current Rating, 4P Poles, 30mA Trip Sensitivity
  • RS stock no. 231-9953
  • Mfr. Part No. 2CSR256040R1104 DS203NC C10 AC30
Each
R 3,878.81(exc. VAT)
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