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

329 of 999+
In Stock
RS PRO MCB, 2P, 6A Curve C, 240 → 415V AC, 10 kA Breaking Capacity
  • RS Stock No. 265-0186
Each
€22.64(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 100A, Breaking Capacity 200 kA, Fixed Mount
  • RS Stock No. 270-3943
  • Mfr. Part No. 3VA2110-0MQ36-0AA0
Each
€1,272.58(exc. VAT)
Temporarily out of stock
Allen Bradley, 140G MCCB 4P 125A, Module Frame Mount
  • RS Stock No. 261-2830
  • Mfr. Part No. 140G-G2C4-C50
Each
€322.15(exc. VAT)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 40A, Breaking Capacity 6 kA, Fixed Mount
  • RS Stock No. 259-911
  • Mfr. Part No. 271392 NZMC1-A40
Each
€351.00(exc. VAT)
In Stock
Schneider Electric Acti9 iID RCCB, 80A, 4 Pole, 415V
  • RS Stock No. 245-091
  • Mfr. Part No. A9R12480
Each
€326.45(exc. VAT)
In Stock
Eaton Eaton Moeller NZM Door Coupling Handle for use with N(S)1(-4), NZM1(-4), PN1(-4)
  • RS Stock No. 257-822
  • Mfr. Part No. 279392 NZM1-XTVD-0
Each
€86.90(exc. VAT)
Temporarily out of stock
Legrand MPX³ Enclosure for use with Motor Circuit Breaker
  • RS Stock No. 266-1393
  • Mfr. Part No. 417481
Each
€54.29(exc. VAT)
Temporarily out of stock
Eaton RCBO, 6A Current Rating, 1P + N Poles, 30mA Trip Sensitivity, Type C, xPole Range
  • RS Stock No. 254-647
  • Mfr. Part No. 236961 PXK-C6/1N/003-A
Each
€208.00(exc. VAT)
In Stock
Better World
Schneider Electric Acti 9 IC60L MCB, 1P, 10A Curve K, 230V AC, 72V DC, 20 kA, 15 kA Breaking Capacity
  • RS Stock No. 212-0143
  • Mfr. Part No. A9F95110
Each
€32.99(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 80A, Breaking Capacity 16 kA, Fixed Mount
  • RS Stock No. 271-9615
  • Mfr. Part No. 3VA10802ED360AA0
Each
€211.80(exc. VAT)
In Stock
ABB Tmax XT Handle, Lockable for use with Circuit Breaker
  • RS Stock No. 231-9360
  • Mfr. Part No. 1SDA104853R1 RHE XT6 F/P
Each
€216.26(exc. VAT)
Temporarily out of stock
ABB S801C MCB, 1P, 16A Curve B, 400V AC, 25 kA Breaking Capacity
  • RS Stock No. 140-826
  • Mfr. Part No. 2CCS881001R0165
Each
€54.03(exc. VAT)
In Stock
Better World
Schneider Electric Acti 9 A9N1 MCB, 2P, 80A Curve B
  • RS Stock No. 221-0880
  • Mfr. Part No. A9N18413
Each
€314.58(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 160A, Breaking Capacity 200 kA, Fixed Mount
  • RS Stock No. 270-4066
  • Mfr. Part No. 3VA2116-0KP46-0AA0
Each
€2,283.67(exc. VAT)
Temporarily out of stock
Better World
ABB, Tmax XT MCCB 4P 125A, Fixed Mount
  • RS Stock No. 236-7393
  • Mfr. Part No. 1SDA067624R1 XT2H 160 TMA 125A 3P+N FF
Each
€664.82(exc. VAT)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 4kA Ekip Dip LSI, 4 channels
  • RS Stock No. 259-3828
  • Mfr. Part No. 1SDA071843R1
Each
€26,231.36(exc. VAT)
Temporarily out of stock
ABB Connecting Terminals for use with DDA200, F200, S200
  • RS Stock No. 250-4724
  • Mfr. Part No. 2CDL200010R5015
Each
€6.85(exc. VAT)
Temporarily out of stock
ABB PBSC 3, 3+N Phase Busbar
  • RS Stock No. 201-493
  • Mfr. Part No. 1STQ007425A0000
Each
€1,084.87(exc. VAT)
Temporarily out of stock
Sensata Airpax Airpax Thermal Circuit Breaker - IELBXK1 Single Pole Panel Mount, 80A Current Rating
  • RS Stock No. 275-0228
  • Mfr. Part No. IELBXK1-1REG4-52-80.0-A-M3-V
Each
€121.16(exc. VAT)
Temporarily out of stock
Better World
Siemens RCBO, 16A Current Rating, 1P Poles, 10mA Trip Sensitivity, SENTRON Range
  • RS Stock No. 202-7111
  • Mfr. Part No. 5SU1154-6KK16
Each
€171.05(exc. VAT)
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