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

253 of 999+
In Stock
Better World
Schneider Electric Acti 9 iC60L MCB, 2P, 6A Curve K, 15 kA Breaking Capacity
  • RS Stock No. 219-9298
  • Mfr. Part No. A9F95206
Each
€177.51(exc. VAT)
In Stock
Siemens SENTRON Cover for use with Pin Busbars
  • RS Stock No. 202-7227
  • Mfr. Part No. 5ST3750-0HG
1 Pack of 10
€11.27(exc. VAT)
Temporarily out of stock
Schneider Electric PowerPact Circuit Breaker - PowerPacT 3 Pole 525V ac Voltage Rating Clip-On, 30A Current Rating
  • RS Stock No. 205-174
  • Mfr. Part No. BDF36030
Each
€690.56(exc. VAT)
Temporarily out of stock
Rockwell Automation FB243 Insulated Braided Conductor, 1000V
  • RS Stock No. 281-5997
  • Mfr. Part No. FB243288Q1
1 Pack of 2
€98.09(exc. VAT)
In Stock
ABB PS3 3 Phase Busbar, 400V
  • RS Stock No. 231-9645
  • Mfr. Part No. 2CDL230489R1606 PS3/6/16BP
1 Box of 1
€18.90(exc. VAT)
Temporarily out of stock
ABB MCCB Molded Case Circuit Breaker 3P 630A, Fixed Mount
  • RS Stock No. 250-4244
  • Mfr. Part No. 1SDA054543R1
Each
€4,352.28(exc. VAT)
Temporarily out of stock
Eaton NZM Electronic Circuit Breaker 400A NZM, 4 channels , Fixed
  • RS Stock No. 120-792
  • Mfr. Part No. 155430 NZML3-4-VE400/250-AVE
Each
€5,036.00(exc. VAT)
In Stock
Lovato ModuLo P1MB MCB, 2P, 2A Curve C, 230V AC, 80V DC, 10 kA Breaking Capacity
  • RS Stock No. 825-5700
  • Mfr. Part No. P1MB2PC02
Each
€61.19(exc. VAT)
In Stock
Better World
Schneider Electric TeSys Thermal Circuit Breaker - TeSyS GV 3 Pole 690V ac Voltage Rating, 115A Current Rating
  • RS Stock No. 175-1496
  • Mfr. Part No. GV4P115B
Each
€426.39(exc. VAT)
Temporarily out of stock
ABB, T5N MCCB 4P 320A, Fixed Mount
  • RS Stock No. 237-5970
  • Mfr. Part No. 1SDA054477R1 T5N400 FF TMA 320A
Each
€1,713.33(exc. VAT)
Temporarily out of stock
Hager CFH RCCB, 40A, 3P+N Pole, 300mA, Type A-HI, 230 → 400V ac
  • RS Stock No. 597-934
  • Mfr. Part No. CFH840F
Each
€369.00(exc. VAT)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 63A, Breaking Capacity 7.5 kA, Fixed Mount
  • RS Stock No. 258-292
  • Mfr. Part No. 281278 NZMN1-S63-CNA
Each
€487.00(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric, ComPact MCCB 3P 150A
  • RS Stock No. 221-0988
  • Mfr. Part No. LV430557
Each
€788.02(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 35A, Breaking Capacity 5 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-352
  • Mfr. Part No. 3VA5135-4EC41-0AA0
Each
€326.42(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 16A, Fixed Mount
  • RS Stock No. 260-7584
  • Mfr. Part No. C11F3TM016B
Each
€483.04(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB 3P 100A, Breaking Capacity 10 kA, Fixed Mount
  • RS Stock No. 147-659
  • Mfr. Part No. 3VA5210-7EF31-0AA0
Each
€1,154.76(exc. VAT)
Temporarily out of stock
Better World
ABB, Tmax XT MCCB 4P 160A, Fixed Mount
  • RS Stock No. 236-6506
  • Mfr. Part No. 1SDA067964R1 XT2L 160 Ekip LSI 160A FF
Each
€1,820.41(exc. VAT)
In Stock
Bourns Single, Three Phase Surge Protector, 50kA, 0.7kV, DIN Rail Mount
  • RS Stock No. 287-9626
  • Mfr. Part No. 1250A-2S-120
Each
€307.43(exc. VAT)
Temporarily out of stock
Siemens Busbar Tap-Off Unit, BD2 Series
  • RS Stock No. 213-2429
  • Mfr. Part No. BVP:203136
Each
€275.72(exc. VAT)
Temporarily out of stock
Better World
ABB, XT2L MCCB 3P 100A, Fixed Mount
  • RS Stock No. 236-6492
  • Mfr. Part No. 1SDA067946R1 XT2L 160 Ekip M 100A FF
Each
€1,312.09(exc. VAT)
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