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

53 of 999+
In Stock
Better World
Schneider Electric Acti 9 iC60H MCB, 1P, 40A Curve B, 100 → 133V AC, 72V DC, 10 kA Breaking Capacity
  • RS Stock No. 791-3174
  • Mfr. Part No. A9F53140
Each
€25.16(exc. VAT)
In Stock
Better World
Schneider Electric Acti 9 Cover for use with Linergy FH Horizontal Comb Busbar
  • RS Stock No. 776-2837
  • Mfr. Part No. A9XPE410
Each
€5.86(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric Acti 9 3 Phase Distribution Board, 18 Way, 250 A
  • RS Stock No. 125-1414
  • Mfr. Part No. SEA9BN18PEV
Each
€505.64(exc. VAT)
Temporarily out of stock
Eaton xEffect RCCB, 40A, 4 Pole, 300mA, Type F, 240V ac
  • RS Stock No. 246-775
  • Mfr. Part No. 187421 FRCMM-40/4/03-G/F
Each
€229.00(exc. VAT)
In Stock
ABB 18 Way Plastic Consumer Unit, 125A, IP65 Mistral65
  • RS Stock No. 811-1896
  • Mfr. Part No. 1SL1203A00 65P18X12
Each
€48.32(exc. VAT)
In Stock
Hager NGT MCB, 1+N, 10A, 240 → 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 144-4796
  • Mfr. Part No. NGT710
Each
€109.73(exc. VAT)
In Stock
Better World
Schneider Electric Acti 9 iC60H MCB, 3P, 63A Curve D, 440V AC, 100 → 133V DC, 10 kA Breaking Capacity
  • RS Stock No. 791-3580
  • Mfr. Part No. A9F55363
Each
€124.88(exc. VAT)
In Stock
Better World
Schneider Electric RCBO, 32A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type C, Acti 9 Range
  • RS Stock No. 790-9349
  • Mfr. Part No. A9D11832
Each
€154.51(exc. VAT)
Temporarily out of stock
Allen Bradley 1492 1492-SPM MCB, 1P, 25A Curve D, 277V AC, 48V DC, 10 kA Breaking Capacity
  • RS Stock No. 125-1503
  • Mfr. Part No. 1492-SPM1D250
Each
€25.81(exc. VAT)
Temporarily out of stock
Surge protection device
  • RS Stock No. 170-560
  • Mfr. Part No. 2800723
Each
€93.91(exc. VAT)
Limited stock
ABB F200 RCCB, 40A, 4 Pole, 30mA, Type B, 230/400V
  • RS Stock No. 289-1620
  • Mfr. Part No. 2CSF204568R1400
Each
€558.62(exc. VAT)
Temporarily out of stock
Eaton xEffect FAZ MCB, 1P, 5A Curve C, 240V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 243-521
  • Mfr. Part No. 102083 FAZ-C5/1-NA
1 Pack of 2
€87.57(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 100A, Breaking Capacity 25 kA
  • RS Stock No. 209-6961
  • Mfr. Part No. 3VA1110-3EE32-0AA0
Each
€245.75(exc. VAT)
In Stock
RS PRO MCB, 1P, 10A Curve B, 240 → 415V AC, 6 kA Breaking Capacity
  • RS Stock No. 265-0162
Each
€9.36(exc. VAT)
In Stock
Siemens ALPHA Assembly Kit for use with DIN A4 Upright
  • RS Stock No. 203-3225
  • Mfr. Part No. 8GD9132
Each
€34.28(exc. VAT)
In Stock
Siemens Sentron Handle Locking Device for use with 5SP, 5SY, 5TE8 Miniature Circuit Breakers, Padlock with Maximum 3 mm
  • RS Stock No. 124-3144
  • Mfr. Part No. 5ST3801
Each
€13.13(exc. VAT)
In Stock
Better World
Siemens SENTRON 5SY4 MCB, 1P, 8A Curve D, 400V AC, 72V DC, 5 kA Breaking Capacity
  • RS Stock No. 212-8824
  • Mfr. Part No. 5SY4108-8
Each
€27.64(exc. VAT)
In Stock
Better World
Siemens RCBO, 10A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type B, Sentron Range
  • RS Stock No. 243-6140
  • Mfr. Part No. 5SU1324-6FP10
Each
€255.54(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric Straight Busbar Trunking, 3m, 63A, Canalis KN Series
  • RS Stock No. 211-0439
  • Mfr. Part No. KNT63ED4303
Each
€253.51(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 250A, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 260-402
  • Mfr. Part No. 3VA6225-7JQ41-0AA0
Each
€2,918.72(exc. VAT)
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