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

39187 Products showing for Circuit Breakers

1857 of 999+
Temporarily out of stock
Siemens, Sentron MCCB Molded Case Circuit Breaker 4P 1kA, Breaking Capacity 35 kA, Cable Mount
  • RS Stock No. 249-197
  • Mfr. Part No. 3VA6610-7HN46-0AA0
Each
€8,146.76(exc. VAT)
Temporarily out of stock
Siemens ALPHA Distribution Board
  • RS Stock No. 629-323
  • Mfr. Part No. 8GK1383-2KK35
Each
€1,310.86(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 25A, Breaking Capacity 85 kA, Fixed Mount
  • RS Stock No. 210-1726
  • Mfr. Part No. 3VA2125-6KP36-0AA0
Each
€1,295.69(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON Electronic Circuit Breaker 400A 3VA, 4 channels
  • RS Stock No. 155-862
  • Mfr. Part No. 3VA2440-7KP42-0AA0
Each
€3,874.31(exc. VAT)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 4kA 1SDA07, 3 channels
  • RS Stock No. 259-4420
  • Mfr. Part No. 1SDA072600R1
Each
€26,528.70(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB 4P 1kA, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 270-4773
  • Mfr. Part No. 3VA2510-5HK42-0AA0
Each
€4,896.06(exc. VAT)
Temporarily out of stock
Lovato 3 Phase Surge Protector, 50kA
  • RS Stock No. 216-8304
  • Mfr. Part No. SG23PA300
Each
€195.83(exc. VAT)
Temporarily out of stock
ABB SMISSLINE TP MCB, 3P, 10A Curve K, 415V AC
  • RS Stock No. 246-2653
  • Mfr. Part No. 2CCS573001R0427
Each
€145.50(exc. VAT)
In Stock
Lovato P1RD Residual Current Circuit Breaker, 63A, 4 Pole, 300mA, Type AC, 230 V ac, 400 V ac
  • RS Stock No. 277-5050
  • Mfr. Part No. P1RD4P63AC300
Each
€231.71(exc. VAT)
Temporarily out of stock
ABB Tmax XT Key Lock for use with Tmax XT
  • RS Stock No. 237-6115
  • Mfr. Part No. 1SDA066621R1 RHL XT1..XT4 RONIS TYPE D
Each
€89.03(exc. VAT)
Temporarily out of stock
Better World
ABB, XT2V MCCB 3P 160A, Fixed Mount
  • RS Stock No. 236-6519
  • Mfr. Part No. 1SDA067980R1 XT2V 160 Ekip I 160A FF
Each
€1,084.35(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON 3VA9 Wire Connector for use with 3VA1 250
  • RS Stock No. 218-1828
  • Mfr. Part No. 3VA9253-0JB12
Each
€34.46(exc. VAT)
In Stock
Sensata Airpax Airpax Thermal Circuit Breaker - LELHK111 3 Pole Panel Mount, 50A Current Rating
  • RS Stock No. 275-0372
  • Mfr. Part No. LELHK111-1-62-50.0-01-V
Each
€217.72(exc. VAT)
Temporarily out of stock
Hager NGN MCB, 4P, 3A Curve D, 230 → 400V AC, 6 kA Breaking Capacity
  • RS Stock No. 144-4771
  • Mfr. Part No. NGN403
Each
€320.09(exc. VAT)
Temporarily out of stock
Better World
ABB Emax2 Electronic Circuit Breaker 1.6kA 1SDA07, 3 channels
  • RS Stock No. 259-3147
  • Mfr. Part No. 1SDA071002R1
Each
€6,161.40(exc. VAT)
In Stock
Sensata Airpax Airpax Thermal Circuit Breaker - IEGH11 2 Pole Panel Mount, 10A Current Rating
  • RS Stock No. 275-0213
  • Mfr. Part No. IEGH11-1-63-10.0-A-01-V
1 Box of 5
€399.54(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB 3P 175A, Breaking Capacity 10 kA, Fixed Mount
  • RS Stock No. 148-019
  • Mfr. Part No. 3VA5217-7ED31-2AA0
Each
€1,209.10(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 800A, Breaking Capacity 65 kA, Fixed Mount
  • RS Stock No. 250-156
  • Mfr. Part No. 3VA6580-6KQ42-2AA0
Each
€8,157.32(exc. VAT)
Temporarily out of stock
Eaton IZMX/INX Mechanical Interlock for use with IZMX40...INX40...
  • RS Stock No. 132-803
  • Mfr. Part No. 184210 IZMX-MIL3133C-F40-1
Each
€585.00(exc. VAT)
Currently unavailable
Schneider Electric EasyPact Electronic Circuit Breaker 63A, Fixed
  • RS Stock No. 122-502
  • Mfr. Part No. LV510545
Each
€260.16(exc. VAT)
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