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

279 of 999+
Siemens SENTRON 5SP3725 MCB, 1P, 25A, Type E
  • RS Stock No. 231-8339
  • Mfr. Part No. 5SP3725-2KK03
Each
€108.08(exc. VAT)
HENSEL ENYSTAR Distribution Board, 63 A
  • RS Stock No. 117-006
  • Mfr. Part No. KV 8118
Each
€119.11(exc. VAT)
ABB, SACE Tmax T MCCB Molded Case Circuit Breaker 3P 1kA, Fixed Mount
  • RS Stock No. 232-0156
  • Mfr. Part No. 1SDA062738R1 T7S 1000A PR231-LS/I FF
Each
€3,536.92(exc. VAT)
Eaton MCCB 3P 250A, Breaking Capacity 80 kA, Fixed Mount
  • RS Stock No. 628-8105
  • Mfr. Part No. 266007 PN2-250
1 Box of 1
€725.17(exc. VAT)
Better World
Siemens, SENTRON MCCB 3P 80A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 209-4848
  • Mfr. Part No. 3VA1080-3ED32-0AA0
Each
€203.10(exc. VAT)
ABB Tmax XT Trip Unit for use with Tmax XT
  • RS Stock No. 236-7330
  • Mfr. Part No. 1SDA067514R1 Ekip LSIG In=63A XT4 3p
Each
€1,278.31(exc. VAT)
Better World
Siemens SENTRON Electronic Circuit Breaker 160A 3VA2, 3 channels
  • RS Stock No. 157-368
  • Mfr. Part No. 3VA2216-8KP32-0AA0
Each
€2,210.95(exc. VAT)
Better World
Schneider Electric, EasyPact MCCB 3P 60A, Breaking Capacity 10 kA, Fixed Mount
  • RS Stock No. 269-6105
  • Mfr. Part No. EZC100H3060
Each
€195.50(exc. VAT)
Siemens SENTRON 5SY7 MCB, 3P, 25A Curve D, 400V AC, 60V DC, 25 kA Breaking Capacity
  • RS Stock No. 610-655
  • Mfr. Part No. 5SY7325-8
Each
€201.00(exc. VAT)
Phoenix Contact Surge Protector, DIN Rail Mount
  • RS Stock No. 131-424
  • Mfr. Part No. 2920612
Each
€202.36(exc. VAT)
Phoenix Contact Circuit Breaker - CBB Single Pole 24V dc Voltage Rating DIN Rail, 60A Current Rating
  • RS Stock No. 131-572
  • Mfr. Part No. 2801483
Each
€401.50(exc. VAT)
ETA Thermal Circuit Breaker - EM12-T 24V Voltage Rating DIN Rail Mount, 40A Current Rating
  • RS Stock No. 175-0362
  • Mfr. Part No. EM12-T01-001-DC24V-40A
Each
€40.05(exc. VAT)
Eaton EVG 2 Phase Busbar, 415V
  • RS Stock No. 257-774
  • Mfr. Part No. 291484 EVG-16/2PHAS/10MODUL/HI
Each
€13.90(exc. VAT)
Better World
Siemens SENTRON 5SL4 MCB, 3+N, 32A Curve D, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 209-6513
  • Mfr. Part No. 5SL4432-8
Each
€300.17(exc. VAT)
Better World
Siemens RCBO, 40A Current Rating, 2P Poles, 300mA Trip Sensitivity, Sentron Range
  • RS Stock No. 225-8779
  • Mfr. Part No. 5SU1654-6KK40
Each
€162.66(exc. VAT)
Contactum MCB, 3P, 32A Curve C, 415V AC, 10 kA Breaking Capacity
  • RS Stock No. 184-9043
  • Mfr. Part No. CPB1032C3
Each
€17.62(exc. VAT)
Eaton ZSD-K17 Distribution Board
  • RS Stock No. 127-791
  • Mfr. Part No. 183254 ZSD-K17
Each
€175.00(exc. VAT)
Siemens ALPHA Distribution Board
  • RS Stock No. 272-0247
  • Mfr. Part No. 8GK1031-2KK10
Each
€410.14(exc. VAT)
Schneider Electric ComPact Plug-in Base for use with Compact NSJ
  • RS Stock No. 357-245
  • Mfr. Part No. LV432514
Each
€883.97(exc. VAT)
Siemens, SENTRON MCCB 3P 125A, Breaking Capacity 10 kA, Fixed Mount
  • RS Stock No. 147-880
  • Mfr. Part No. 3VA5212-6EF31-2AA0
Each
€1,152.85(exc. VAT)
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