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

39184 Products showing for Circuit Breakers

359 of 999+
Temporarily out of stock
Allen Bradley 140G Lug Connector for use with Circuit Breaker
  • RS Stock No. 261-2927
  • Mfr. Part No. 140G-K-TLA2A3
Each
€413.41(exc. VAT)
Temporarily out of stock
Schneider Electric Canalis White Busbar Trunking, W46 mm x, L3m
  • RS Stock No. 276-9229
  • Mfr. Part No. KBB40ED44305TW
Each
€321.01(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON 5SL6 MCB, 3+N, 6A Curve C
  • RS Stock No. 216-5930
  • Mfr. Part No. 5SL6606-7
Each
€135.70(exc. VAT)
In Stock
Eaton xEffect MCB, 1P, 25A Curve C, 277 → 480V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 922-6917
  • Mfr. Part No. 102092 FAZ-C25/1-NA
Each
€37.43(exc. VAT)
In Stock
Allen Bradley 1492-GH Supplementary Protectors Thermal Circuit Breaker - 1492-GH Single Pole 250V ac Voltage Rating,
  • RS Stock No. 218-8568
  • Mfr. Part No. 1492-GH010
Each
€95.08(exc. VAT)
Temporarily out of stock
Eaton Eaton xComfort KLV Installaton Accessory for use with Basic Device, Installation Distribution Boards, KLV For
  • RS Stock No. 262-292
  • Mfr. Part No. 302552 KLV-F4M-W-4PR
Each
€286.00(exc. VAT)
Temporarily out of stock
ABB S800U MCB, 2P, 80A, Type Z, 240V AC, 50 kA Breaking Capacity
  • RS Stock No. 141-112
  • Mfr. Part No. 2CCS862017R0805
Each
€298.44(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 160A, Breaking Capacity 55 kA
  • RS Stock No. 209-6912
  • Mfr. Part No. 3VA2116-5HN32-0AA0
Each
€1,080.71(exc. VAT)
Temporarily out of stock
Schneider Electric Flexible Busbar Trunking, 2.5m, 800A, Canalis Series
  • RS Stock No. 207-235
  • Mfr. Part No. KSA800EV4254
Each
€2,513.60(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 25A, Fixed Mount
  • RS Stock No. 260-7586
  • Mfr. Part No. C11F3TM025B
Each
€429.45(exc. VAT)
Temporarily out of stock
Schneider Electric Cross Elbow Busbar Trunking, 0.5 → 1.9m, 630A, Canalis Series
  • RS Stock No. 335-026
  • Mfr. Part No. KSA630CM4A
Each
€1,633.19(exc. VAT)
Temporarily out of stock
Phoenix Contact PTCB Electronic Circuit Breaker 100mA 24V PTCB E1, 1 channels , DIN Rail
  • RS Stock No. 488-366
  • Mfr. Part No. 1464484
Each
€26.56(exc. VAT)
Temporarily out of stock
Schneider Electric Acti9 Acti9 Reflex MCB, 2P, 40A Curve B, 230V AC, 48V DC, 10 kA Breaking Capacity
  • RS Stock No. 354-488
  • Mfr. Part No. A9C61240
Each
€354.00(exc. VAT)
Temporarily out of stock
ABB Tmax XT Residual Current Release for use with Circuit Breaker
  • RS Stock No. 232-0240
  • Mfr. Part No. 1SDA067123R1 RC Sel XT1 F
Each
€793.52(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON Fire Safety Circuit Breaker, 1+N, 25A Curve B, 230V AC
  • RS Stock No. 238-3207
  • Mfr. Part No. 5SV6016-6MC25
Each
€334.78(exc. VAT)
Temporarily out of stock
Schneider Electric IKQ RCD, 25A, 4 Pole, 30mA, 400V ac
  • RS Stock No. 339-839
  • Mfr. Part No. SED25034
Each
€240.43(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 600A, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 249-468
  • Mfr. Part No. 3VA6560-7JQ36-2AA0
Each
€6,262.30(exc. VAT)
Temporarily out of stock
Siemens SENTRON 3 Phase Busbar, 400V, 18mm Pitch
  • RS Stock No. 328-469
  • Mfr. Part No. 5ST3790-2
Each
€217.98(exc. VAT)
Temporarily out of stock
Phoenix Contact Thermal Magnetic Circuit Breaker - TMC Single Pole 250V ac Voltage Rating DIN Rail, 4A Current Rating
  • RS Stock No. 135-491
  • Mfr. Part No. 0914662
1 Pack of 6
€652.39(exc. VAT)
Temporarily out of stock
Eaton xEffect FAZ MCB, 1P, 40A Curve C, 230V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 240-161
  • Mfr. Part No. 142480 FAZT-C40/1
Each
€62.30(exc. VAT)
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