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
Surge Protection Devices
Surge Protection Devices
Thermal Breakers
Thermal Breakers

39184 Products showing for Circuit Breakers

285 of 999+
Better World
Siemens SENTRON Electronic Circuit Breaker 400A 3VA, 4 channels
  • RS Stock No. 156-720
  • Mfr. Part No. 3VA2340-8KQ42-0AA0
Each
€3,472.00(exc. VAT)
ABB Emax2 Electronic Circuit Breaker 1kA Ekip Hi-Touch LSIG, 4 channels
  • RS Stock No. 259-3484
  • Mfr. Part No. 1SDA071439R1
Each
€10,083.60(exc. VAT)
Better World
Siemens, SENTRON MCCB 4P 100A, Breaking Capacity 110 kA, Fixed Mount
  • RS Stock No. 270-3978
  • Mfr. Part No. 3VA2110-7HL46-0AA0
Each
€807.12(exc. VAT)
Better World
Schneider Electric RCBO, 20A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type C, Acti 9 Range
  • RS Stock No. 790-9305
  • Mfr. Part No. A9D11820
Each
€154.51(exc. VAT)
Eaton Moeller xPole 4 Phase Busbar, 500V
  • RS Stock No. 253-278
  • Mfr. Part No. 215643 EVG-4PHAS/12MODUL
Each
€17.10(exc. VAT)
Siemens SENTRON Trip Alarm Switch for use with 3VA4/5/6
  • RS Stock No. 155-293
  • Mfr. Part No. 3VA9978-0AB13
Each
€40.91(exc. VAT)
Eaton xEffect MCB, 2P, 10A Curve C, 125V DC, 10 kA Breaking Capacity
  • RS Stock No. 922-7204
  • Mfr. Part No. 279138 FAZ-C10/2-DC
Each
€170.45(exc. VAT)
Better World
Schneider Electric Acti 9 A9F9 MCB, 3P, 1A Curve C, 400V AC, 180V DC, 20 kA, 15 kA Breaking Capacity
  • RS Stock No. 211-2502
  • Mfr. Part No. A9F94301
Each
€289.69(exc. VAT)
Better World
Schneider Electric Acti 9 IC60L MCB, 1P, 4A Curve K, 230V AC, 72V DC, 20 kA, 15 kA Breaking Capacity
  • RS Stock No. 212-0141
  • Mfr. Part No. A9F95104
Each
€44.56(exc. VAT)
ABB RCBO, 20A Current Rating, 2P Poles, 30mA Trip Sensitivity, System Pro M Compact Range
  • RS Stock No. 201-6944
  • Mfr. Part No. 2CSR275080R1204 DS201 M C20 AC30
Each
€171.70(exc. VAT)
ABB SMISSLINE Busbar for Smissline TP
  • RS Stock No. 246-2344
  • Mfr. Part No. 2CCF800255R0001
Each
€19.42(exc. VAT)
Schneider Electric, ComPacT MCCB 4P 80A, Fixed Mount
  • RS Stock No. 260-7579
  • Mfr. Part No. C11E4TM080B
Each
€505.53(exc. VAT)
Phoenix Contact 1 Phase Surge Arrester, 400V (Volts), DIN Rail Mount
  • RS Stock No. 131-518
  • Mfr. Part No. 2906282
Each (In a Pack of 12)
€157.416(exc. VAT)
Resi9 Busbar, 230V ac, 18mm Pitch
  • RS Stock No. 585-435
  • Mfr. Part No. R9EXVN15
1 Pack of 5
€56.20(exc. VAT)
Finder Busbar, 10 A - 250V
  • RS Stock No. 123-2856
  • Mfr. Part No. 097.42
Each
€2.20(exc. VAT)
Schneider Electric Resi9 R9E MCB, 1P, 10A, 230V AC
  • RS Stock No. 357-825
  • Mfr. Part No. R9ETC610
Each
€344.04(exc. VAT)
Contactum MCB, 1P, 50A Curve B, 250V AC, 4.5 kA Breaking Capacity
  • RS Stock No. 184-9062
  • Mfr. Part No. CPB50
Each
€4.27(exc. VAT)
Better World
Siemens SENTRON 5SY5 MCB, 2P, 16A Curve B, 400V AC, 440V DC, 10 kA Breaking Capacity
  • RS Stock No. 209-7524
  • Mfr. Part No. 5SY5216-6
Each
€113.22(exc. VAT)
Eaton, Eaton Moeller series NZM MCCB Molded Case Circuit Breaker 4P 400A, Breaking Capacity 5 kA, Plug In
  • RS Stock No. 244-195
  • Mfr. Part No. 150147 NZMN3-4-VE400-T
Each
€4,371.00(exc. VAT)
Siemens SENTRON Communication Module for use with 3VA
  • RS Stock No. 210-9418
  • Mfr. Part No. 3VA9987-0TA10
Each
€942.14(exc. VAT)
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