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

152 of 999+
Temporarily out of stock
ABB S801C MCB, 1P, 63A Curve B, 400V AC, 25 kA Breaking Capacity
  • RS Stock No. 140-853
  • Mfr. Part No. 2CCS881001R0635
Each
€71.46(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 32A, Breaking Capacity 55 kA, Fixed Mount
  • RS Stock No. 271-9901
  • Mfr. Part No. 3VA1132-5GE46-0AA0
Each
€341.40(exc. VAT)
Temporarily out of stock
Lovato 3 Phase Surge Protector, 100kA
  • RS Stock No. 216-8289
  • Mfr. Part No. SA1B3NA320R
Each
€698.50(exc. VAT)
Temporarily out of stock
Lovato 1 Phase Surge Protector, 50kA
  • RS Stock No. 216-8296
  • Mfr. Part No. SG21NA300
Each
€139.59(exc. VAT)
Temporarily out of stock
Siemens SENTRON Plate for use with 3VA10/11 3P
  • RS Stock No. 163-256
  • Mfr. Part No. 3VA9113-0SG10
1 Pack of 10
€54.42(exc. VAT)
In Stock
ABB 3 Phase Busbar Cover
  • RS Stock No. 711-6553
  • Mfr. Part No. 1SAM201907R1101 S1-M1-25
Each
€14.48(exc. VAT)
In Stock
Better World
Schneider Electric Compact Ins, Compact Insj, Compact Inv, Compact Nsx, Compact Nsx Dc, Easypact Cvs Cable Connector
  • RS Stock No. 221-1228
  • Mfr. Part No. LV432480
Each
€158.39(exc. VAT)
Temporarily out of stock
Schneider Electric RCBO, 20A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type C, Acti9 Range
  • RS Stock No. 339-510
  • Mfr. Part No. SEE120C03
Each
€158.52(exc. VAT)
Temporarily out of stock
ABB Opening Solenoid for use with Tmax XT
  • RS Stock No. 237-6279
  • Mfr. Part No. 1SDA067208R1
Each
€880.43(exc. VAT)
In Stock
Better World
Siemens SENTRON 5SL6 MCB, 3P, 6A Curve C, 6 kA Breaking Capacity
  • RS Stock No. 202-7095
  • Mfr. Part No. 5SL6306-7
Each
€84.47(exc. VAT)
Temporarily out of stock
Siemens SENTRON 5SY Circuit Breaker, 4P, 63A Curve C, 440V AC, 60V DC, 25 kA Breaking Capacity
  • RS Stock No. 664-328
  • Mfr. Part No. 5SY8463-7
Each
€542.00(exc. VAT)
Temporarily out of stock
ETA Thermal Circuit Breaker - 3120-N 5 Pole 50 V DC, 240 V AC Voltage Rating, 5A Current Rating
  • RS Stock No. 210-2099
  • Mfr. Part No. 3120-N551-H7T1-W14DR4-5A
Each
€30.75(exc. VAT)
Temporarily out of stock
Hager BS RCD, 63A, 3 Pole, 300mA, Type AC, 230 → 400V
  • RS Stock No. 599-770
  • Mfr. Part No. BS364
Each
€469.18(exc. VAT)
In Stock
Contactum MCB, 1P, 10A Curve B, 250V AC, 10 kA Breaking Capacity
  • RS Stock No. 184-9027
  • Mfr. Part No. CPB1010B
Each
€5.99(exc. VAT)
Temporarily out of stock
Schneider Electric Linergy Busbar, 750V ac
  • RS Stock No. 119-216
  • Mfr. Part No. LVS04113
Each
€756.13(exc. VAT)
Temporarily out of stock
ABB System Pro M Compact S200 M UC MCB, 1P, 8A, Type Z, 230V AC, 220V DC, 10 kA Breaking Capacity
  • RS Stock No. 200-563
  • Mfr. Part No. 2CDS271061R0408
Each
€117.53(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 600A, Breaking Capacity 65 kA, Fixed Mount
  • RS Stock No. 249-516
  • Mfr. Part No. 3VA6560-6HL32-0AA0
Each
€2,764.16(exc. VAT)
In Stock
Hager Busbar
  • RS Stock No. 144-4835
  • Mfr. Part No. KBS763G
Each
€20.52(exc. VAT)
Temporarily out of stock
Schneider Electric Busbar Tap-Off Unit with Circuit Breaker, Canalis Series
  • RS Stock No. 207-300
  • Mfr. Part No. KSB250DC4SP
Each
€1,533.24(exc. VAT)
Temporarily out of stock
Siemens SENTRON Busbar Holder for use with Busbar Holder
  • RS Stock No. 226-2784
  • Mfr. Part No. 3NJ5974-0AB
Each
€25.54(exc. VAT)
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