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

8 of 999+
Temporarily out of stock
Hager NFT MCB, 3P, 20A, 415V AC, 10 kA Breaking Capacity
  • RS Stock No. 144-4732
  • Mfr. Part No. NFT320
Each
€125.26(exc. VAT)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 40A, Breaking Capacity 15 kA, Fixed Mount
  • RS Stock No. 254-082
  • Mfr. Part No. 259095 NZMH2-A40
Each
€492.00(exc. VAT)
Temporarily out of stock
Rockwell Automation FB243 Busbar, 1000V
  • RS Stock No. 281-6002
  • Mfr. Part No. FB243544Q1
Each
€90.89(exc. VAT)
In Stock
Eaton Eaton Moeller NZM Assembly Kit for use with N(S)1(-4), NZM1(-4), PN1(-4)
  • RS Stock No. 254-554
  • Mfr. Part No. 266626 NZM1-XHB
Each
€107.00(exc. VAT)
In Stock
ABB RCBO, 10A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type C, System Pro M Compact Range
  • RS Stock No. 201-6933
  • Mfr. Part No. 2CSR255080R1104 DS201 C10 AC30
Each
€161.74(exc. VAT)
In Stock
Phoenix Contact Thermal Circuit Breaker - TCP 3A Single Pole 65 V dc, 250V ac Voltage Rating, 3A Current Rating
  • RS Stock No. 801-6905
  • Mfr. Part No. 0712233
Each
€17.17(exc. VAT)
Temporarily out of stock
nVent ERIFLEX ERIFLEX Busbar
  • RS Stock No. 277-6174
  • Mfr. Part No. 568610
1 Pack of 10
€59.37(exc. VAT)
In Stock
Better World
Schneider Electric RCBO, 10A Current Rating, 1P Poles, 30mA Trip Sensitivity, Type C, Acti9 Range
  • RS Stock No. 201-2234
  • Mfr. Part No. A9DC3610
Each
€218.70(exc. VAT)
In Stock
ETA Thermal Circuit Breaker - 1140-E Single Pole 250V Voltage Rating Integral Mount, 6A Current Rating
  • RS Stock No. 728-8660
  • Mfr. Part No. 1140-E211-P1M1-6A
Each
€14.97(exc. VAT)
In Stock
Schneider Electric 12 Way Metal Consumer Unit, 100A, IP2X, IP3X EZ9E
  • RS Stock No. 654-186
  • Mfr. Part No. EZ9E12MCCU
Each
€69.88(exc. VAT)
Temporarily out of stock
ABB RCBO, 20A Current Rating, 2P Poles, 30mA Trip Sensitivity
  • RS Stock No. 231-9935
  • Mfr. Part No. 2CSR255151R1204 DSE201 C20 A30
Each
€75.28(exc. VAT)
In Stock
Eaton xPole PXL, S200 MCB, 2P, 10A Curve B, 400V AC, 48V DC, 10 kA Breaking Capacity
  • RS Stock No. 490-068
  • Mfr. Part No. 236227 PXL-B10/2
Each
€41.16(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 35A, Breaking Capacity 10 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-603
  • Mfr. Part No. 3VA5135-6ED31-0AA0
Each
€300.96(exc. VAT)
Temporarily out of stock
Better World
Siemens 3VA9 RCD, 160A, 3 Pole, Type A
  • RS Stock No. 210-3513
  • Mfr. Part No. 3VA9113-0RL20
Each
€1,139.52(exc. VAT)
In Stock
Phoenix Contact Electronic Device Circuit Breaker Electronic Circuit breaker 10A 24V CBMC, 1 channels , DIN Rail Mount
  • RS Stock No. 207-2719
  • Mfr. Part No. 2906032
Each
€148.36(exc. VAT)
In Stock
Better World
Schneider Electric Acti 9 iC60H MCB, 2P, 10A Curve C, 440V AC, 100 → 133V DC, 10 kA Breaking Capacity
  • RS Stock No. 791-3341
  • Mfr. Part No. A9F54210
Each
€57.54(exc. VAT)
Temporarily out of stock
Allen Bradley 1492-RCDA RCD, 40A, 3+N Pole, 500mA, Type A
  • RS Stock No. 136-8605
  • Mfr. Part No. 1492-RCDA4D40
Each
€165.96(exc. VAT)
Temporarily out of stock
Schneider Electric, Powerpact Circuit breaker 1P 125A, Breaking Capacity 20 kA, Clip-On
  • RS Stock No. 444-344
  • Mfr. Part No. BGL16125
Each
€917.20(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 2P 50A, Breaking Capacity 36 kA, Fixed Mount
  • RS Stock No. 271-9354
  • Mfr. Part No. 3VA1150-4ED22-0AA0
Each
€207.70(exc. VAT)
In Stock
Allen Bradley 1492 1492-SPM MCB, 1P, 10A Curve C, 277V AC, 48V DC, 10 kA Breaking Capacity
  • RS Stock No. 125-1457
  • Mfr. Part No. 1492-SPM1C100
Each
€22.91(exc. VAT)
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