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

229 of 999+
Temporarily out of stock
Better World
Siemens Sentron 5SY4 MCB, 4P, 1A Curve C, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 124-3183
  • Mfr. Part No. 5SY4401-7
Each
€178.85(exc. VAT)
Temporarily out of stock
Schneider Electric, C160 MCCB 4P 1.6kA, Breaking Capacity 415 V ac, Fixed Mount
  • RS Stock No. 335-133
  • Mfr. Part No. C160H4FM
Each
€9,939.00(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 100A, Breaking Capacity 65 kA, Fixed Mount
  • RS Stock No. 269-963
  • Mfr. Part No. 3VA6110-6JQ31-0AA0
Each
€1,618.46(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 100A, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 269-977
  • Mfr. Part No. 3VA6110-7JP31-0AA0
Each
€1,345.69(exc. VAT)
In Stock
Rockwell Automation 1694 Electronic Circuit Protectors Electronic Circuit breaker 40A 24V 1694-PFA, 2 channels ,
  • RS Stock No. 218-8904
  • Mfr. Part No. 1694-PFA1244
Each
€32.69(exc. VAT)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 160A, Breaking Capacity 18.5 kA, Fixed Mount
  • RS Stock No. 255-524
  • Mfr. Part No. 259088 NZMB2-A160
Each
€944.00(exc. VAT)
Temporarily out of stock
ABB Isolator Circuit Trip for use with Commanding Load
  • RS Stock No. 231-9591
  • Mfr. Part No. 2CDE282001R0125 E202/125r
1 Box of 1
€86.29(exc. VAT)
Temporarily out of stock
ABB RCBO, 50A Current Rating, 2P Poles, Type K
  • RS Stock No. 237-5057
  • Mfr. Part No. 2CSR252101R1507
Each
€470.79(exc. VAT)
In Stock
Allen Bradley Bulletin for use with 1492-D DC Circuit Breaker, 188 Regional Circuit Breakers
  • RS Stock No. 125-1548
  • Mfr. Part No. 189-ASCR3
Each
€36.67(exc. VAT)
Temporarily out of stock
Schneider Electric Acti9 Acti9 iC60 MCB, 4P, 3A, Type Z, 440V AC, 250V DC, 70 kA Breaking Capacity
  • RS Stock No. 444-159
  • Mfr. Part No. A9F92403
1 Pack of 3
€933.04(exc. VAT)
Temporarily out of stock
Phoenix Contact Thermal Magnetic Circuit Breaker - TMC 2 Pole 250V ac Voltage Rating DIN Rail, 300mA Current Rating
  • RS Stock No. 135-512
  • Mfr. Part No. 0914921
1 Pack of 3
€600.01(exc. VAT)
Temporarily out of stock
Hager BFH RCCB, 25A, 3P+N Pole, 300mA
  • RS Stock No. 602-078
  • Mfr. Part No. BFH925F
Each
€333.90(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 30A, Breaking Capacity 7 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-585
  • Mfr. Part No. 3VA5130-5EF31-0AA0
Each
€296.44(exc. VAT)
In Stock
ABB System Pro M Compact S200 MCB, 1P, 6A Curve C, 230V AC, 72V DC, 20 kA Breaking Capacity
  • RS Stock No. 191-9458
  • Mfr. Part No. 2CDS251001R0064 S201-C6
Each
€22.93(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric, NSX Range MCCB 4P 100A, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 849-4084
  • Mfr. Part No. LV429690
Each
€554.24(exc. VAT)
Temporarily out of stock
SENTRON Wire Connector for use with 3VA55, 3VA65/66 Series
  • RS Stock No. 263-720
  • Mfr. Part No. 3VA9674-0JL43
1 Kit
€1,673.04(exc. VAT)
In Stock
ETA Thermal Circuit Breaker - 2-5700 Single Pole 250V Voltage Rating Panel Mount, 25A Current Rating
  • RS Stock No. 406-9491
  • Mfr. Part No. 2-5700-IG1-P10-DD-000040-25A
Each
€27.60(exc. VAT)
Temporarily out of stock
ABB RCBO, 25A Current Rating, 2P Poles, 300mA Trip Sensitivity, System Pro M Compact Range
  • RS Stock No. 201-6910
  • Mfr. Part No. 2CSR255080R3255
Each
€135.33(exc. VAT)
Temporarily out of stock
ABB, SACE Tmax T MCCB Molded Case Circuit Breaker 3P 630A, Fixed Mount
  • RS Stock No. 232-0093
  • Mfr. Part No. 1SDA054412R1 T5H630 FF PR221-LS 630A
Each
€2,622.56(exc. VAT)
In Stock
Legrand, DNX3 MCCB 1P 20A, Breaking Capacity 4500 A, DIN Rail Mount
  • RS Stock No. 687-983
  • Mfr. Part No. 406780
Each
€44.13(exc. VAT)
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