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

1764 of 999+
Temporarily out of stock
ABB System Pro M Compact S300P MCB, 3+N, 63A Curve D, 415V AC, 25 kA Breaking Capacity
  • RS Stock No. 203-734
  • Mfr. Part No. 2CDS383103R0631
Each
€254.67(exc. VAT)
Temporarily out of stock
Eaton Plate for use with N(S)4, NZM4, NZM4-XKV
  • RS Stock No. 229-280
  • Mfr. Part No. 119866 NZM4-XISP
Each
€31.70(exc. VAT)
In Stock
Better World
Schneider Electric Multi 9 C60SP MCB, 1P, 6A Curve D, 415V AC, 60V DC, 20 kA Breaking Capacity
  • RS Stock No. 211-2386
  • Mfr. Part No. M9F23106
Each
€25.11(exc. VAT)
Temporarily out of stock
Eaton xEffect FAZ MCB, 2P, 1A Curve C, 440V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 256-185
  • Mfr. Part No. 240832 FAZT-C1/2
Each
€153.00(exc. VAT)
Temporarily out of stock
Siemens SENTRON 5SJ4111 MCB, 1P, 5A Curve D, 400V AC, 60V DC, 10 kA Breaking Capacity
  • RS Stock No. 300-099
  • Mfr. Part No. 5SJ4111-8HG42
Each
€76.84(exc. VAT)
In Stock
ABB SMISSLINE TP S400M MCB, 3P, 32A Curve C, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 177-046
  • Mfr. Part No. 2CCS573001R0324 S403M-C32
Each
€133.82(exc. VAT)
Temporarily out of stock
Eaton xEffect - FBSmV RCCB, 40A, 4 Pole, 500mA, Type A, 240/415V ac
  • RS Stock No. 123-542
  • Mfr. Part No. 170233 FBSMV-40/4/05-A
Each
€125.00(exc. VAT)
Temporarily out of stock
Siemens SENTRON 5SJ4 MCB, 1P, 8A Curve C, 14 kA Breaking Capacity
  • RS Stock No. 216-4772
  • Mfr. Part No. 5SJ4108-7HG41
Each
€58.04(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric 690V ac Circuit Trip for use with Compact NSX 100/160 Circuit Breakers
  • RS Stock No. 212-0227
  • Mfr. Part No. LV429044
Each
€125.03(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 25A, Breaking Capacity 55 kA, Fixed Mount
  • RS Stock No. 270-3637
  • Mfr. Part No. 3VA2025-5JQ32-0AA0
Each
€1,146.41(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 25A, Breaking Capacity 55 kA, Fixed Mount
  • RS Stock No. 874-4389
  • Mfr. Part No. 3VA2125-5HL32-0AA0
Each
€476.59(exc. VAT)
Temporarily out of stock
Better World
ABB Emax2 Electronic Circuit Breaker 1.6kA Ekip Hi-Touch LSI, 3 channels
  • RS Stock No. 259-3153
  • Mfr. Part No. 1SDA071008R1
Each
€9,233.83(exc. VAT)
Temporarily out of stock
Eaton RCBO, 40A Current Rating, 2P Poles, 100mA Trip Sensitivity, Type A, Type B, FRBm6 Range
  • RS Stock No. 123-326
  • Mfr. Part No. 170816 FRBM6-B40/2/01-LIA
Each
€180.00(exc. VAT)
In Stock
ABB S303 MCB, 3P, 32A Curve D, 415V AC, 125V DC, 15 kA Breaking Capacity
  • RS Stock No. 203-068
  • Mfr. Part No. 2CDS383001R0321
Each
€174.90(exc. VAT)
Temporarily out of stock
Eaton xPole - PXL PXL MCB, 3P, 32A Curve B, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 255-741
  • Mfr. Part No. 236488 PXL-B32/3N
Each
€135.00(exc. VAT)
Temporarily out of stock
Eaton xEffect FAZ MCB, 1+N, 1.5A Curve D, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 258-336
  • Mfr. Part No. 278683 FAZ-D1,5/1N
Each
€69.50(exc. VAT)
Temporarily out of stock
SENTRON Terminal Cover for use with 3VA55, 3VA65 Series
  • RS Stock No. 263-782
  • Mfr. Part No. 3VA9671-0WD30
Each
€73.66(exc. VAT)
Temporarily out of stock
ABB S800S MCB, 3P, 20A Curve D, 240V AC, 50 kA Breaking Capacity
  • RS Stock No. 141-103
  • Mfr. Part No. 2CCS863001R0201
Each
€290.37(exc. VAT)
In Stock
Eaton xPole PXL, S200 MCB, 3P, 6A Curve C, 400V AC, 48V DC, 10 kA Breaking Capacity
  • RS Stock No. 490-024
  • Mfr. Part No. 236420 PXL-C6/3
Each
€98.89(exc. VAT)
Temporarily out of stock
Siemens SENTRON 5SJ MCB, 1P, 35A
  • RS Stock No. 232-2243
  • Mfr. Part No. 5SJ4135-6HG40
Each
€87.17(exc. VAT)
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