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
RCDs
RCDs
Surge Protection Devices
Surge Protection Devices
Thermal Breakers
Thermal Breakers

39184 Products showing for Circuit Breakers

1762 of 999+
Temporarily out of stock
Hager CFC RCCB, 40A, 1P+N Pole, 300mA, Type AC, 230V ac
  • RS Stock No. 597-881
  • Mfr. Part No. CFC743F
Each
€155.35(exc. VAT)
Temporarily out of stock
ABB PBSC 3, 3+N Phase Busbar
  • RS Stock No. 203-395
  • Mfr. Part No. 1STQ007424A0000
Each
€906.88(exc. VAT)
Temporarily out of stock
WAGO Electronic Circuit Breaker 10A 24V 787, 4 channels , DIN Rail
  • RS Stock No. 279-4100
  • Mfr. Part No. 787-1664/000-080
Each
€262.80(exc. VAT)
Temporarily out of stock
ABB S800S MCB, 4P, 32A Curve C, 240V AC, 50 kA Breaking Capacity
  • RS Stock No. 140-722
  • Mfr. Part No. 2CCS864001R0324
Each
€380.83(exc. VAT)
Temporarily out of stock
Siemens SENTRON Plug for use with Circuit Breaker 3WL10 / 3VA27
  • RS Stock No. 266-535
  • Mfr. Part No. 3VW9011-0RC53
Each
€99.52(exc. VAT)
Temporarily out of stock
Better World
ABB, Tmax XT MCCB 4P 80A, Fixed Mount
  • RS Stock No. 236-7485
  • Mfr. Part No. 1SDA067756R1 XT2S 160 TMG 80A FF
Each
€792.95(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 250A, Breaking Capacity 150 kA, Fixed Mount
  • RS Stock No. 260-183
  • Mfr. Part No. 3VA6325-8JT31-2AA0
Each
€3,573.36(exc. VAT)
Temporarily out of stock
Eaton xEffect FAZ MCB, 3P, 1.6A Curve C, 400V AC, 60V DC, 10 kA Breaking Capacity
  • RS Stock No. 258-761
  • Mfr. Part No. 278860 FAZ-C1,6/3
Each
€189.00(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 80A, Breaking Capacity 65 kA, Fixed Mount
  • RS Stock No. 209-5265
  • Mfr. Part No. 3VA5180-6ED31-0AA0
Each
€333.71(exc. VAT)
Temporarily out of stock
Schurter Thermal Circuit Breaker - T9 Single Pole 48 V dc, 240V ac Voltage Rating, 4A Current Rating
  • RS Stock No. 173-8073
  • Mfr. Part No. 4404.0097
Each (In a Box of 100)
€2.681(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 4P 630A, Fixed Mount
  • RS Stock No. 260-8216
  • Mfr. Part No. C63H42D630
Each
€6,413.02(exc. VAT)
Temporarily out of stock
Phoenix Contact 1 Phase Surge Protector, 100kA, 125V dc, DIN Rail Mount
  • RS Stock No. 207-2711
  • Mfr. Part No. 2905465
Each
€370.22(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 100A, Breaking Capacity 200 kA, Fixed Mount
  • RS Stock No. 269-871
  • Mfr. Part No. 3VA6110-0KQ31-0AA0
Each
€1,982.17(exc. VAT)
Temporarily out of stock
Eaton, Eaton Moeller series NZM MCCB Molded Case Circuit Breaker 3P 80A, Breaking Capacity 4 kA, Plug In
  • RS Stock No. 230-654
  • Mfr. Part No. 112751 NZMC1-S80-SVE
Each
€516.00(exc. VAT)
Temporarily out of stock
ABB System Pro M Compact S300P MCB, 1P, 25A, Type Z, 240V AC, 72V DC, 25 kA Breaking Capacity
  • RS Stock No. 203-028
  • Mfr. Part No. 2CDS381001R0518
Each
€51.97(exc. VAT)
Temporarily out of stock
ABB Tmax XT Front Terminal for use with Tmax XT
  • RS Stock No. 237-6278
  • Mfr. Part No. 1SDA067202R1 FC CuAl 2x150 XT4 8PCS
Each
€230.95(exc. VAT)
Temporarily out of stock
Siemens SENTRON 1 Phase Busbar, 18mm Pitch
  • RS Stock No. 328-455
  • Mfr. Part No. 5ST3674-1
Each
€31.30(exc. VAT)
Temporarily out of stock
ABB SMISSLINE TP S400E MCB, 1P, 40A Curve B, 230V AC, 6 kA Breaking Capacity
  • RS Stock No. 178-645
  • Mfr. Part No. 2CCS551001R0405 - S401EB40
Each
€25.50(exc. VAT)
Temporarily out of stock
ABB System Pro M Compact S300P MCB, 4P, 1.6A Curve K, 415V AC, 100 kA Breaking Capacity
  • RS Stock No. 204-284
  • Mfr. Part No. 2CDS384001R0257
Each
€281.41(exc. VAT)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 4P 160A, Breaking Capacity 5 kA, Plug In
  • RS Stock No. 229-886
  • Mfr. Part No. 113390 NZMH2-4-VE160-SVE
Each
€2,135.00(exc. VAT)
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