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

167 of 999+
In Stock
WAGO Electronic Circuit Breaker 2A 24V 787, 1 channels , DIN Rail
  • RS Stock No. 303-276
  • Mfr. Part No. 787-3861/200-000
Each
€36.38(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric, Masterpact MCCB 3P 2.5kA, Fixed Mount
  • RS Stock No. 248-3804
  • Mfr. Part No. LV848300
Each
€16,807.94(exc. VAT)
In Stock
Schneider Electric 1 Phase Distribution Board, 2 Way, 63 A
  • RS Stock No. 301-8600
  • Mfr. Part No. 13392
Each
€7.26(exc. VAT)
In Stock
Better World
Schneider Electric Multi 9 MCB, 2P, 5A Curve C, 10 kA Breaking Capacity
  • RS Stock No. 219-9122
  • Mfr. Part No. M9F22205
Each
€94.39(exc. VAT)
In Stock
Schurter Thermal Circuit Breaker - T11 Single Pole 240V ac Voltage Rating, 12A Current Rating
  • RS Stock No. 284-5883
  • Mfr. Part No. 4400.0052
Each
€10.79(exc. VAT)
In Stock
Hager NFN MCB, 4P, 20A Curve C, 240 → 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 144-4723
  • Mfr. Part No. NFN420
Each
€167.71(exc. VAT)
Temporarily out of stock
HENSEL ENYBOARD Distribution Board, 63 A
  • RS Stock No. 117-435
  • Mfr. Part No. KV 8112 M
Each
€73.25(exc. VAT)
In Stock
Sensata Airpax Airpax Thermal Circuit Breaker - IUGN6 Single Pole Panel Mount, 10A Current Rating
  • RS Stock No. 275-0281
  • Mfr. Part No. IUGN6-1-62-10.0
Each
€64.57(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON Electronic Circuit Breaker 250A 3VA, 4 channels
  • RS Stock No. 156-703
  • Mfr. Part No. 3VA2325-6HM42-0AA0
Each
€2,032.85(exc. VAT)
In Stock
Contactum A Type RCD RCCB, 100A, 4 Pole, 100mA, Type A, 220 → 415V ac
  • RS Stock No. 240-6405
  • Mfr. Part No. CPR100010A
Each
€109.03(exc. VAT)
Temporarily out of stock
Legrand DX3 RCD, 10A, 1+N Pole, 300mA, Type AC
  • RS Stock No. 731-9948
  • Mfr. Part No. 4 111 71
Each
€414.90(exc. VAT)
In Stock
Better World
ABB System Pro M Compact S200M MCB, 1P, 4A Curve C, 253V AC, 72V DC, 10 kA Breaking Capacity
  • RS Stock No. 535-4122
  • Mfr. Part No. 2CDS271001R0044 S201M-C4
Each
€31.20(exc. VAT)
In Stock
Allen Bradley 1492 1492-SPM MCB, 3P, 25A Curve B, 277V AC, 10 kA Breaking Capacity
  • RS Stock No. 125-1447
  • Mfr. Part No. 1492-SPM3B250
Each
€76.13(exc. VAT)
In Stock
ETA Thermal Circuit Breaker - 2-5700 Single Pole 250V Voltage Rating Panel Mount, 10A Current Rating
  • RS Stock No. 405-9141
  • Mfr. Part No. 2-5700-IG1-P10-DD-000040-10A
Each
€27.60(exc. VAT)
Temporarily out of stock
Rockwell Automation 1492-SP 1492-SPM MCB, 3P, 13A Curve C
  • RS Stock No. 218-8853
  • Mfr. Part No. 1492-SPM3C130
Each
€77.84(exc. VAT)
Temporarily out of stock
Phoenix Contact Surge Protector, DIN Rail Mount
  • RS Stock No. 131-447
  • Mfr. Part No. 2800994
Each
€228.05(exc. VAT)
In Stock
Better World
Siemens SENTRON Cover for use with 3VA1 250
  • RS Stock No. 210-9317
  • Mfr. Part No. 3VA9211-0WF30
Each
€26.98(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric RCBO, 32A Current Rating, 2P Poles, 30mA Trip Sensitivity, Acti 9 Range
  • RS Stock No. 790-9263
  • Mfr. Part No. A9D11232
Each
€233.83(exc. VAT)
Temporarily out of stock
Hager Distribution Board
  • RS Stock No. 252-0202
  • Mfr. Part No. SL200809039011
Each
€33.87(exc. VAT)
In Stock
Better World
Siemens SENTRON 5SY4 MCB, 1P, 8A Curve C, 10 kA Breaking Capacity
  • RS Stock No. 202-7144
  • Mfr. Part No. 5SY4108-7
Each
€22.49(exc. VAT)
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