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

39187 Products showing for Circuit Breakers

1846 of 999+
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 1.6kA 1SDA07, 3 channels
  • RS Stock No. 259-4214
  • Mfr. Part No. 1SDA072334R1
Each
€5,451.13(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON Electronic Circuit Breaker 40A 3VA2, 4 channels
  • RS Stock No. 157-421
  • Mfr. Part No. 3VA2140-8JQ46-0AA0
Each
€1,743.42(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 63A, Breaking Capacity 110 kA, Fixed Mount
  • RS Stock No. 270-4769
  • Mfr. Part No. 3VA2163-7MQ36-0AA0
Each
€1,155.32(exc. VAT)
Currently unavailable
Altech Thermal Circuit Breaker - V-EA 2 Pole 277V Voltage Rating DIN Rail Mount, 0.8A Current Rating
  • RS Stock No. 899-1844
  • Mfr. Part No. 2G08UM
Each
€30.71(exc. VAT)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 1kA Ekip Dip LI, 4 channels
  • RS Stock No. 259-4545
  • Mfr. Part No. 1SDA072781R1
Each
€6,019.56(exc. VAT)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 2kA 1SDA07, 3 channels
  • RS Stock No. 259-4252
  • Mfr. Part No. 1SDA072377R1
Each
€10,456.20(exc. VAT)
Temporarily out of stock
Siemens ALPHA Assembly Kit for use with 3VA1 Molded Case Circuit Breakers
  • RS Stock No. 629-228
  • Mfr. Part No. 8GK4733-2KK22
Each
€120.24(exc. VAT)
Temporarily out of stock
Schneider Electric MasterPact Connection Unit for use with MTZ1 06-16
  • RS Stock No. 212-184
  • Mfr. Part No. LV833731
Each
€292.00(exc. VAT)
Temporarily out of stock
ABB SMISSLINE Busbar for Smissline TP
  • RS Stock No. 246-2326
  • Mfr. Part No. 2CCF800238R0001
Each
€11.97(exc. VAT)
Temporarily out of stock
Better World
ABB Emax2 Electronic Circuit Breaker 630A 1SDA07, 3 channels
  • RS Stock No. 259-9889
  • Mfr. Part No. 1SDA070722R1
Each
€4,659.19(exc. VAT)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 5kA 1SDA07, 3 channels
  • RS Stock No. 259-4430
  • Mfr. Part No. 1SDA072621R1
Each
€35,349.58(exc. VAT)
Temporarily out of stock
ABB High Performance S800N MCB, 2P, 63A Curve D, 400V AC, 6 kA Breaking Capacity
  • RS Stock No. 435-257
  • Mfr. Part No. 2CCS892001R0631 S802N-D63
Each
€181.58(exc. VAT)
Temporarily out of stock
ABB, Tmax XT MCCB 3P 2A, Fixed Mount
  • RS Stock No. 237-6206
  • Mfr. Part No. 1SDA067001R1 XT2N 160 TMD 2A FF
Each
€285.58(exc. VAT)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 4kA 1SDA07, 3 channels
  • RS Stock No. 259-4382
  • Mfr. Part No. 1SDA072563R1
Each
€23,059.82(exc. VAT)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 5kA 1SDA07, 4 / f channels
  • RS Stock No. 259-3955
  • Mfr. Part No. 1SDA071999R1
Each
€47,804.53(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON Electronic Circuit Breaker 40A 3VA2, 4 channels
  • RS Stock No. 157-124
  • Mfr. Part No. 3VA2140-5KQ46-0AA0
Each
€1,574.88(exc. VAT)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 1.6kA Ekip Touch LI, 4 channels
  • RS Stock No. 259-3536
  • Mfr. Part No. 1SDA071514R1
Each
€6,597.67(exc. VAT)
In Stock
ETA Thermal Circuit Breaker - 3130 2 Pole 50 V dc, 240V ac Voltage Rating Snap In, 10A Current Rating
  • RS Stock No. 175-0392
  • Mfr. Part No. 3130-FA2A-P7T1-W01Q-10A-A040001M
Each
€42.04(exc. VAT)
Temporarily out of stock
Schneider Electric Panelset Busbar
  • RS Stock No. 444-375
  • Mfr. Part No. NSYTBCN388
Each
€1,933.84(exc. VAT)
Temporarily out of stock
Eaton NZM Door Coupling Handle for use with N(S)2(-4), NZM2(-4), PN2(-4)
  • RS Stock No. 125-984
  • Mfr. Part No. 172531 NZM2-XTVDKLR
Each
€212.00(exc. VAT)
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