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

35874 Products showing for Circuit Breakers

34 of 999+
Better World
Siemens, SENTRON MCCB 4P 25A, Breaking Capacity 150 kA, Fixed Mount
  • RS Stock No. 270-3719
  • Mfr. Part No. 3VA2025-8KP42-0AA0
Each
TWD88,109.00(exc. VAT)
Siemens, SENTRON MCCB Molded Case Circuit Breaker 1P 25A, Breaking Capacity 18 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-315
  • Mfr. Part No. 3VA5125-5ED11-1AA0
Each
TWD8,846.00(exc. VAT)
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 2P 20A, Breaking Capacity 36 kA, DIN Rail Mount
  • RS Stock No. 271-9820
  • Mfr. Part No. 3VA1120-4ED22-0AA0
Each
TWD12,584.00(exc. VAT)
Schurter Thermal Circuit Breaker - T11 Single Pole 240V ac Voltage Rating, 8A Current Rating
  • RS Stock No. 173-9828
  • Mfr. Part No. 4400.0015
Each (In a Box of 100)
TWD227.00(exc. VAT)
Siemens Sentron Trip alarm switch for use with 3VA1 And 3VA20 Up To 3VA25
  • RS Stock No. 226-2843
  • Mfr. Part No. 3VA9988-0AB13
Each
TWD2,390.00(exc. VAT)
Siemens, SENTRON MCCB 3P 200A, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 256-533
  • Mfr. Part No. 3VA5320-7EC31-1AA0
Each
TWD85,135.00(exc. VAT)
Siemens, SENTRON MCCB 4P 175A, Breaking Capacity 7 kA, Fixed Mount
  • RS Stock No. 147-992
  • Mfr. Part No. 3VA5217-5EC41-0AA0
Each
TWD67,252.00(exc. VAT)
Better World
Siemens SENTRON 3VA1 MCB, 2P, 50A
  • RS Stock No. 224-7867
  • Mfr. Part No. 3VA1150-5ED26-0AA0
Each
TWD15,600.00(exc. VAT)
Phoenix Contact CLIPLINE Electronic Circuit breaker 24A 24V PTCB E1, 1 channels , DIN Rail Mount Type E
  • RS Stock No. 220-5805
  • Mfr. Part No. 1135752
Each
TWD1,527.00(exc. VAT)
Altech Thermal Circuit Breaker - V-EA 2 Pole 277V Voltage Rating DIN Rail Mount, 25A Current Rating
  • RS Stock No. 899-1884
  • Mfr. Part No. 2G25UM
Each
TWD1,059.00(exc. VAT)
Better World
Siemens, SENTRON MCCB 3P 40A, Breaking Capacity 85 kA
  • RS Stock No. 209-6898
  • Mfr. Part No. 3VA2040-6HN36-0AA0
Each
TWD32,678.00(exc. VAT)
Hager CDA RCD Switch, 63A, 2 Pole, 30mA, Type A, 230V
  • RS Stock No. 599-826
  • Mfr. Part No. CDA769F
Each
TWD6,958.00(exc. VAT)
ABB, SACE Tmax XT MCCB Molded Case Circuit Breaker 3P 32A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 232-0244
  • Mfr. Part No. 1SDA067392R1 XT1C 160 TMD 32A FF
Each
TWD9,324.00(exc. VAT)
Better World
Siemens, SENTRON MCCB 4P 100A, Breaking Capacity 150 kA, Fixed Mount
  • RS Stock No. 270-3624
  • Mfr. Part No. 3VA2010-8KP46-0AA0
Each
TWD94,432.00(exc. VAT)
Better World
Siemens, SENTRON MCCB 3P 160A, Breaking Capacity 36 kA, Fixed Mount
  • RS Stock No. 874-4200
  • Mfr. Part No. 3VA1116-4ED36-0AA0
Each
TWD33,247.00(exc. VAT)
ABB System Pro M Compact S200MUC MCB, 2P, 10A Curve K, 440V AC, 440V DC, 25 kA Breaking Capacity
  • RS Stock No. 231-9737
  • Mfr. Part No. 2CDS272061R0427 S202 MUC K 10A 10 KA
1 Box of 1
TWD7,553.00(exc. VAT)
Better World
Siemens, SENTRON MCCB 3P 50A, Breaking Capacity 25 kA
  • RS Stock No. 209-6958
  • Mfr. Part No. 3VA1050-3ED32-0AA0
Each
TWD12,890.00(exc. VAT)
Better World
Siemens, SENTRON MCCB 4P 100A, Breaking Capacity 85 kA, Fixed Mount
  • RS Stock No. 270-3950
  • Mfr. Part No. 3VA2110-6HK42-0AA0
Each
TWD44,958.00(exc. VAT)
Hager Hager MMN Circuit Breaker, 4P, 630mA, Type AC, 415V AC, 25 kA Breaking Capacity
  • RS Stock No. 599-887
  • Mfr. Part No. MMN400
Each
TWD23,096.00(exc. VAT)
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
TWD1,527.00(exc. VAT)
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