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

398 of 999+
Temporarily out of stock
Bourns Single, Three Phase Surge Protector, 50kA, 1kV, DIN Rail Mount
  • RS Stock No. 287-9627
  • Mfr. Part No. 1250A-2S-230
Each (In a Box of 90)
€220.538(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric, ComPacT NSX MCCB 3P 50A, Fixed Mount
  • RS Stock No. 254-6279
  • Mfr. Part No. C10B3TM050
Each
€508.72(exc. VAT)
Temporarily out of stock
ABB Terminal Kit for use with SACE Tmax XT
  • RS Stock No. 192-0872
  • Mfr. Part No. 1SDA066889R1
Each
€41.81(exc. VAT)
Temporarily out of stock
Siemens SENTRON 5SY5 MCB, 4P, 40A Curve C, 400V AC, 880V DC, 15 kA Breaking Capacity
  • RS Stock No. 610-516
  • Mfr. Part No. 5SY5440-7
Each
€465.00(exc. VAT)
In Stock
Schneider Electric Acti9 1 Phase Distribution Board, 8 Way, 125 A
  • RS Stock No. 244-933
  • Mfr. Part No. SE125A8
Each
€148.86(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric TeSys Thermal Circuit Breaker - GV4PEM 3 Pole 690V ac Voltage Rating, 3.5A Current Rating
  • RS Stock No. 175-1560
  • Mfr. Part No. GV4PEM03N
Each
€511.97(exc. VAT)
Temporarily out of stock
Siemens SIVACON Busbar, 40mm Pitch
  • RS Stock No. 626-473
  • Mfr. Part No. 8PQ4000-0BA27
Each
€2,154.92(exc. VAT)
In Stock
Phoenix Contact Electronic Device Circuit Breaker Electronic Circuit breaker 8A 24V PTCB, 1 channels , DIN Rail Mount
  • RS Stock No. 207-2796
  • Mfr. Part No. 2908262
Each
€58.94(exc. VAT)
Temporarily out of stock
ABB SU200 M MCB, 2P, 4A, Type Z, 440V AC, 96V DC, 15 kA Breaking Capacity
  • RS Stock No. 200-081
  • Mfr. Part No. 2CDS272337R0338
Each
€152.13(exc. VAT)
Temporarily out of stock
Better World
ABB SN201 MCB, 1P, 25A Curve B
  • RS Stock No. 237-1437
  • Mfr. Part No. 2CSS275101R0255
Each
€33.11(exc. VAT)
Temporarily out of stock
Eaton xEffect - FRCdM RCCB, 25A, 4 Pole, 30mA, 240/415V ac
  • RS Stock No. 127-409
  • Mfr. Part No. 180418 FRCDM-25/4/003-G/B/60HZ
Each
€752.00(exc. VAT)
Temporarily out of stock
Eaton 1 Phase Industrial Surge Protection, 15kA, 277V ac, Flange Mount Mount
  • RS Stock No. 236-5201
  • Mfr. Part No. LS15K-KP30-277V-P
Each (In a Box of 5)
€35.102(exc. VAT)
Temporarily out of stock
Hager NFT MCB, 3P, 10A, 415V AC, 10 kA Breaking Capacity
  • RS Stock No. 144-4730
  • Mfr. Part No. NFT310
Each
€123.82(exc. VAT)
Unavailable
Schneider Electric, NSX MCCB 3P 400A, Breaking Capacity 75 kA, Fixed Mount
  • RS Stock No. 219-8387
  • Mfr. Part No. LV433626
Each
€4,391.65(exc. VAT)
Temporarily out of stock
ABB S800S MCB, 3P, 32A Curve K, 240V AC, 50 kA Breaking Capacity
  • RS Stock No. 141-181
  • Mfr. Part No. 2CCS863001R0537
Each
€321.98(exc. VAT)
In Stock
Europa EUC3P EUC MCB, 3P, 25A Curve C, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 849-6597
  • Mfr. Part No. EUC3P25C
Each
€26.88(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric, Compact MCCB 4P 163A, Breaking Capacity 16 kA, DIN Rail Mount
  • RS Stock No. 178-8114
  • Mfr. Part No. LV426179
Each
€511.36(exc. VAT)
Temporarily out of stock
Eaton xEffect - FRCmM RCCB, 25A, 4 Pole, 300mA, Type A, 240/415V ac
  • RS Stock No. 123-246
  • Mfr. Part No. 170341 FRCMM-25/4/03-A
Each
€142.00(exc. VAT)
Temporarily out of stock
Siemens SENTRON Wire Connector for use with 3VA5/6 400/600
  • RS Stock No. 269-7194
  • Mfr. Part No. 3VA9473-0JE23
1 Pack of 3
€691.04(exc. VAT)
Temporarily out of stock
Eaton xEnergy Main Distribution Board
  • RS Stock No. 232-133
  • Mfr. Part No. 116456 XPLB0606
Each
€84.50(exc. VAT)
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