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

121 of 999+
Better World
ABB, Tmax XT MCCB 4P 225A, Fixed Mount
  • RS Stock No. 236-6697
  • Mfr. Part No. 1SDA068330R1 XT4S 250 TMA 225A FF
Each
€1,174.57(exc. VAT)
Schneider Electric, PowerPact Circuit breaker 3P 124A, Breaking Capacity 25 kA, DIN Rail Mount
  • RS Stock No. 358-357
  • Mfr. Part No. NHDF36125TW
Each
€1,538.29(exc. VAT)
Siemens ALPHA Adapter Kit for use with ALPHA 400/630 DIN
  • RS Stock No. 210-1758
  • Mfr. Part No. 8GK4351-3KK32
Each
€344.36(exc. VAT)
Better World
Siemens, SENTRON MCCB 3P 100A, Breaking Capacity 55 kA
  • RS Stock No. 209-6908
  • Mfr. Part No. 3VA2110-5MN32-0AA0
Each
€487.28(exc. VAT)
Better World
Schneider Electric, ComPact MCCB, Fixed Mount
  • RS Stock No. 221-0942
  • Mfr. Part No. LV429393
Each
€122.98(exc. VAT)
Phoenix Contact EC-E4 Electronic Circuit Breaker 4A 24V EC-E, 1 channels , DIN Rail
  • RS Stock No. 131-327
  • Mfr. Part No. 0903035
Each (In a Pack of 6)
€108.503(exc. VAT)
Schneider Electric Multi9 M9F1 MCB, 1P, 2A Curve B, 415V AC, 72V DC, 3 kA Breaking Capacity
  • RS Stock No. 212-190
  • Mfr. Part No. M9F10102
Each
€20.75(exc. VAT)
ABB MCCB Molded Case Circuit Breaker 3P 400A, Fixed Mount
  • RS Stock No. 250-4238
  • Mfr. Part No. 1SDA054538R1
Each
€4,276.51(exc. VAT)
ABB IEC Range Busbar for use with DDA200, F200, S200
  • RS Stock No. 250-4747
  • Mfr. Part No. 2CDL231001R1006
Each
€9.37(exc. VAT)
Murrelektronik Limited Mico Pro Cover
  • RS Stock No. 285-5869
  • Mfr. Part No. 9000-41000-0000010
Each
€11.27(exc. VAT)
Schneider Electric RCBO, 13A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type B, Resi9 Range
  • RS Stock No. 212-201
  • Mfr. Part No. R9D02613
Each
€156.00(exc. VAT)
Better World
Siemens, SENTRON MCCB 3P 16A, Breaking Capacity 70 kA
  • RS Stock No. 209-7027
  • Mfr. Part No. 3VA1196-6EE32-0AA0
Each
€266.90(exc. VAT)
ABB Residual Current Release for use with XT1
  • RS Stock No. 289-1586
  • Mfr. Part No. 1SDA067121R1
Each
€1,030.64(exc. VAT)
Better World
Schneider Electric ID RCCB, 63A, 4 Pole, 300mA, Type AC, 415V ac
  • RS Stock No. 248-3872
  • Mfr. Part No. M9R14463
Each
€528.81(exc. VAT)
ABB FH200 RCCB, 25A, 4 Pole, 30mA, Type AC
  • RS Stock No. 540-1644
  • Mfr. Part No. 2CSF204006R1250 FH204 AC-25/0,03
Each
€125.01(exc. VAT)
Better World
Siemens SENTRON Electronic Circuit Breaker 63A 3VA2, 4 channels
  • RS Stock No. 157-229
  • Mfr. Part No. 3VA2163-8JP46-0AA0
Each
€1,399.27(exc. VAT)
Schneider Electric 3 Phase Surge Protector, 40kA
  • RS Stock No. 815-3278
  • Mfr. Part No. SDSA3650
Each
€482.60(exc. VAT)
Better World
Schneider Electric iID RCCB, 25A, 4 Pole, 300mA
  • RS Stock No. 734-9352
  • Mfr. Part No. A9R14425
Each
€186.11(exc. VAT)
Better World
Schneider Electric Multi 9 MCB Mini Circuit Breaker, 2P, 1A Curve D, 277V AC
  • RS Stock No. 256-6814
  • Mfr. Part No. M9F53201
Each
€215.32(exc. VAT)
WAGO Electronic Circuit Breaker 4A 24V 787, 1 channels , DIN Rail
  • RS Stock No. 303-325
  • Mfr. Part No. 787-3861/400-000
Each
€36.38(exc. VAT)
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