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

65 of 999+
ABB RCBO, 63A Current Rating, 2P Poles, Type B
  • RS Stock No. 237-5150
  • Mfr. Part No. 2CSR272101R1635
Each
€337.83(exc. VAT)
Hager Terminal Block
  • RS Stock No. 251-2061
  • Mfr. Part No. KN07N
Each
€14.04(exc. VAT)
Better World
Schneider Electric RCBO, 40A Current Rating, 3P+N Poles, 30mA Trip Sensitivity, Type C, Acti9 Range
  • RS Stock No. 238-3360
  • Mfr. Part No. A9DX3740
Each
€579.54(exc. VAT)
Schneider Electric Surge Arrester, 100kA, DIN Rail Mount
  • RS Stock No. 247-1639
  • Mfr. Part No. 16332
Each
€2,519.99(exc. VAT)
Phoenix Contact 1 Phase Surge Protector, 40kA, On Base Element Mount
  • RS Stock No. 201-6555
  • Mfr. Part No. 2905356
Each
€86.12(exc. VAT)
Schneider Electric, PowerPact Circuit breaker 3P 125A, Breaking Capacity 18 kA, Screw Mount
  • RS Stock No. 578-268
  • Mfr. Part No. BGL36125LU
Each
€707.29(exc. VAT)
Better World
Schneider Electric Acti 9 iC60H MCB, 1P, 20A Curve B, 100 → 133V AC, 72V DC, 10 kA Breaking Capacity
  • RS Stock No. 791-3168
  • Mfr. Part No. A9F53120
Each
€23.14(exc. VAT)
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 100A, Breaking Capacity 16 kA, DIN Rail Mount
  • RS Stock No. 271-9551
  • Mfr. Part No. 3VA10102ED360AA0
Each
€235.50(exc. VAT)
Better World
Siemens 3VA91 RCD, 160A, 4 Pole, Type B
  • RS Stock No. 218-1795
  • Mfr. Part No. 3VA9114-0RL21
Each
€1,413.41(exc. VAT)
Better World
Schneider Electric RCBO, 6A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type C, Acti 9 Range
  • RS Stock No. 790-9260
  • Mfr. Part No. A9D11806
Each
€154.51(exc. VAT)
Schneider Electric ComPacT New Generation Trip Unit for use with ComPacT NSX250 Circuit Breakers
  • RS Stock No. 260-7842
  • Mfr. Part No. C2542D250
Each
€937.95(exc. VAT)
Allen Bradley, 140UT MCCB 3P 2A, Breaking Capacity 65 kA, Fixed Mount
  • RS Stock No. 273-2418
  • Mfr. Part No. 140UT-D7D3-B20
Each
€237.27(exc. VAT)
ABB PBSC 3, 3+N Phase Busbar
  • RS Stock No. 201-493
  • Mfr. Part No. 1STQ007425A0000
Each
€1,084.87(exc. VAT)
Better World
Siemens, SENTRON MCCB 3P 250A, Breaking Capacity 25 kA, 36 kA, Fixed Mount
  • RS Stock No. 874-4137
  • Mfr. Part No. 3VA1110-4ED36-0AA0
Each
€265.70(exc. VAT)
Siemens SENTRON Shunt Trip Release SHT
  • RS Stock No. 277-0729
  • Mfr. Part No. 3WA9111-0AD32
Each
€224.77(exc. VAT)
Allen Bradley 1492-RCDA RCD, 40A, 4 Pole, 30mA, Type A
  • RS Stock No. 218-8692
  • Mfr. Part No. 1492-RCDA4A40-US
Each
€191.47(exc. VAT)
Siemens SIRIUS 3RV2 Feeder Terminal for use with 3RV2
  • RS Stock No. 218-1774
  • Mfr. Part No. 3RV2935-5E
Each
€31.81(exc. VAT)
Better World
Schneider Electric Acti 9 iC60N MCB, 1P, 6A Curve C, 100 → 133V AC, 12 → 48V DC, 6 kA Breaking Capacity
  • RS Stock No. 790-8850
  • Mfr. Part No. A9F44106
Each
€22.69(exc. VAT)
Allen Bradley 140MT Feeder Terminal for use with Compact Busbar
  • RS Stock No. 273-2329
  • Mfr. Part No. 140MT-C-WTEN
Each
€13.79(exc. VAT)
Better World
ABB System Pro M Compact S200 MCB, 1P, 25A Curve C, 230V AC, 72V DC, 10 kA Breaking Capacity
  • RS Stock No. 746-7677
  • Mfr. Part No. 2CDS251001R0254 S201-C25
Each
€19.74(exc. VAT)
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