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

252 of 999+
Temporarily out of stock
Schneider Electric MasterPact Connection Unit for use with MTZ1 06-16
  • RS Stock No. 212-186
  • Mfr. Part No. LV833737
Each
€394.00(exc. VAT)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 4kA Ekip Dip LSI, 4 channels
  • RS Stock No. 259-3839
  • Mfr. Part No. 1SDA071852R1
Each
€30,641.81(exc. VAT)
Temporarily out of stock
ABB MCCB Molded Case Circuit Breaker 3P 320A, Fixed Mount
  • RS Stock No. 250-4169
  • Mfr. Part No. 1SDA054440R1
Each
€2,498.76(exc. VAT)
Temporarily out of stock
Better World
ABB Emax2 Electronic Circuit Breaker 3.2kA Ekip Dip LSI, 3 channels
  • RS Stock No. 259-3255
  • Mfr. Part No. 1SDA071153R1
Each
€13,644.27(exc. VAT)
Temporarily out of stock
Schneider Electric Acti9 Reds RCCB, 63A, 300mA, 230V
  • RS Stock No. 357-883
  • Mfr. Part No. A9CR5263
Each
€943.04(exc. VAT)
In Stock
TE Connectivity Thermal Circuit Breaker - W58 Single Pole 50 V dc, 250V ac Voltage Rating, 15A Current Rating
  • RS Stock No. 782-0902
  • Mfr. Part No. W58-XB1A4A-15
Each
€7.44(exc. VAT)
Temporarily out of stock
Hager HMB MCB, 4P, 100A, 400V AC, 15 Breaking Capacity
  • RS Stock No. 602-108
  • Mfr. Part No. HMB490
Each
€1,178.28(exc. VAT)
Temporarily out of stock
Siemens SENTRON 5SY7 MCB, 2P, 20A Curve D, 400V AC, 60V DC, 25 kA Breaking Capacity
  • RS Stock No. 610-649
  • Mfr. Part No. 5SY7220-8
Each
€125.00(exc. VAT)
Temporarily out of stock
Eaton xEffect FAZ MCB, 1P, 8A, Type Z, 230V AC, 48V DC, 10 kA Breaking Capacity
  • RS Stock No. 256-695
  • Mfr. Part No. 278624 FAZ-Z8/1
Each
€41.90(exc. VAT)
Temporarily out of stock
ABB Tmax XT Trip Unit for use with Tmax XT
  • RS Stock No. 236-7353
  • Mfr. Part No. 1SDA067537R1 Ekip LSIG In=250A XT4 4p
Each
€1,597.89(exc. VAT)
Temporarily out of stock
ABB MCCB 4P 160A, Breaking Capacity 65 kA
  • RS Stock No. 192-0843
  • Mfr. Part No. 1SDA067095R1
Each
€894.33(exc. VAT)
Temporarily out of stock
Legrand VX³ Three Phase Busbar, 400V, 150mm Pitch
  • RS Stock No. 266-1258
  • Mfr. Part No. 405023
Each
€268.23(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric RCBO, 10A Current Rating, 1P Poles, 30mA Trip Sensitivity, Acti9 Range
  • RS Stock No. 201-2246
  • Mfr. Part No. A9DF3610
Each
€298.96(exc. VAT)
In Stock
Eaton xEffect MCB, 3P, 50A Curve C, 240 → 415V AC, 96V DC, 10 kA Breaking Capacity
  • RS Stock No. 922-7138
  • Mfr. Part No. 278980 FAZ-C50/3N
Each
€221.30(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB 3P 60A, Breaking Capacity 10 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-707
  • Mfr. Part No. 3VA5160-6EC31-0AA0
Each
€310.06(exc. VAT)
Temporarily out of stock
Siemens SENTRON Undervoltage Release for use with MCCB
  • RS Stock No. 218-1869
  • Mfr. Part No. 3VA9908-0BB14
Each
€93.30(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 63A, Breaking Capacity 55 kA
  • RS Stock No. 210-1673
  • Mfr. Part No. 3VA1163-5EF36-0AA0
Each
€299.33(exc. VAT)
Temporarily out of stock
Better World
ABB, XT2S MCCB 3P 120A, Fixed Mount
  • RS Stock No. 236-7491
  • Mfr. Part No. 1SDA067765R1 XT2S 160 MA 20 FF
Each
€352.95(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric Vigi iDT40 RCD, 40A, 3 Pole, 30mA
  • RS Stock No. 191-6144
  • Mfr. Part No. A9Y62340
Each
€333.40(exc. VAT)
Temporarily out of stock
ABB Tmax XT Connection Kit for use with Tmax XT
  • RS Stock No. 237-6194
  • Mfr. Part No. 1SDA066984R1 XT2-XT4 F/P
Each
€89.91(exc. VAT)
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