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

245 of 999+
Temporarily out of stock
Siemens Busbar for use with SIVACON S4
  • RS Stock No. 621-396
  • Mfr. Part No. 8PQ3000-1BA34
Each
€108.56(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON Electronic Circuit Breaker 250A 3VA, 3 channels
  • RS Stock No. 156-858
  • Mfr. Part No. 3VA2325-7HN32-0AA0
Each
€1,818.35(exc. VAT)
Temporarily out of stock
SENTRON Wire Connector for use with 3VA58, 3VA68 Series
  • RS Stock No. 263-918
  • Mfr. Part No. 3VA9771-0JJ44
Each
€398.58(exc. VAT)
In Stock
ABB RCBO, 32A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type B, System Pro M Compact Range
  • RS Stock No. 914-4070
  • Mfr. Part No. 2CSR255051R1325 DSE201 B32 AC30 - N Blue
Each
€77.88(exc. VAT)
Temporarily out of stock
Legrand Single Phase Surge Protector, 1kA, 1kV, Surface Mount Mount
  • RS Stock No. 266-1191
  • Mfr. Part No. 0 775 41
Each
€107.53(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB 4P 450A, Breaking Capacity 35 kA, Fixed Mount
  • RS Stock No. 257-346
  • Mfr. Part No. 3VA5445-5GC41-0AA0
Each
€2,354.98(exc. VAT)
Temporarily out of stock
Eaton MCB, 2P, 4A Curve B, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 240-540
  • Mfr. Part No. 101288 PLI-B4/2
Each
€74.20(exc. VAT)
In Stock
Rockwell Automation 1492-SP 1492-SPM MCB, 1P, 7A Curve D
  • RS Stock No. 218-8762
  • Mfr. Part No. 1492-SPM1D070
1 Pack of 2
€51.31(exc. VAT)
Temporarily out of stock
Eaton RCBO, 6A Current Rating, 2P Poles, 100mA Trip Sensitivity, Type A, Type C, FRBDM Range
  • RS Stock No. 120-951
  • Mfr. Part No. 168222 FRBDM-D6/2/01-G/A
Each
€192.00(exc. VAT)
Temporarily out of stock
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)
Limited stock
ETA REX12 Electronic Circuit breaker 1A 24V REX12-T, DIN Rail Mount
  • RS Stock No. 175-0370
  • Mfr. Part No. REX12-TA2-107-DC24V-1A/1A
Each
€65.56(exc. VAT)
Temporarily out of stock
Allen Bradley 1492-SP 1492-SPM MCB, 1P, 15A Curve D
  • RS Stock No. 218-8769
  • Mfr. Part No. 1492-SPM1D150
1 Pack of 2
€47.42(exc. VAT)
In Stock
ABB SU200 M MCB, 2P, 2A Curve K, 440V AC, 96V DC, 15 kA Breaking Capacity
  • RS Stock No. 203-865
  • Mfr. Part No. 2CDS272337R0277
Each
€141.27(exc. VAT)
Temporarily out of stock
Schneider Electric Acti9 1 Phase Distribution Board, 20 Way, 125 A
  • RS Stock No. 339-316
  • Mfr. Part No. SEA10S10
Each
€1,693.98(exc. VAT)
In Stock
Eaton MCB, 1+N, 32A Curve C
  • RS Stock No. 230-1081
  • Mfr. Part No. 264749 PLG4-C32/1N
Each
€13.25(exc. VAT)
In Stock
WAGO Electronic Circuit Breaker 8A 24V 787, 1 channels , DIN Rail
  • RS Stock No. 279-4126
  • Mfr. Part No. 787-2861/108-020
Each
€69.62(exc. VAT)
Temporarily out of stock
Better World
ABB, SACE Tmax XT MCCB Molded Case Circuit Breaker 3P 250A, Breaking Capacity 36 kA, Fixed Mount
  • RS Stock No. 232-0270
  • Mfr. Part No. 1SDA068092R1 XT4N 250 TMA 250A FF
Each
€792.30(exc. VAT)
In Stock
ETA ESX10 Electronic Circuit breaker 4A 24V ESX10-T, 1 channels , Plug-In Mounting
  • RS Stock No. 210-2134
  • Mfr. Part No. ESX10-TB-101-DC24V-4A-E
Each
€98.53(exc. VAT)
Temporarily out of stock
Eaton xEffect - FBSmV RCCB, 40A, 4 Pole, Type S, 240/415V ac
  • RS Stock No. 121-239
  • Mfr. Part No. 170156 FBSMV-40/4/1-S
Each
€186.00(exc. VAT)
Temporarily out of stock
Eaton PKE Trip Block Electronic Circuit Breaker 65A , 3 channels
  • RS Stock No. 120-669
  • Mfr. Part No. 168798 PKE-XTUCP-65
Each
€164.00(exc. VAT)
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