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

35874 Products showing for Circuit Breakers

66 of 999+
Temporarily out of stock
ABB Plastic Consumer Unit, IP41 1SLM004100A
  • RS Stock No. 286-4970
  • Mfr. Part No. 1SLM004100A1906
Each
TWD1,087.00(exc. GST)
Temporarily out of stock
Eaton xEffect RCCB, 40A, 2 Pole, 100mA, Type F, 240V ac
  • RS Stock No. 246-768
  • Mfr. Part No. 187391 FRCMM-40/2/01-S/F
Each
TWD11,773.00(exc. GST)
Temporarily out of stock
ABB 20 → 24V (Volts) Shunt Trip Shunt trip
  • RS Stock No. 259-5989
  • Mfr. Part No. 1SAM201910R1001
Each
TWD2,646.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 125A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 874-4174
  • Mfr. Part No. 3VA1112-3EE36-0AA0
Each
TWD27,217.00(exc. GST)
In Stock
nVent ERIFLEX ERIFLEX Busbar
  • RS Stock No. 277-6176
  • Mfr. Part No. 568660
Each
TWD1,456.00(exc. GST)
Temporarily out of stock
Better World
ABB Emax2 Electronic Circuit Breaker 800A Ekip Touch LSI, 3 channels
  • RS Stock No. 259-3050
  • Mfr. Part No. 1SDA070905R1
Each
TWD249,423.00(exc. GST)
Temporarily out of stock
ABB MCCB Molded Case Circuit Breaker 3P 250A, Fixed Mount
  • RS Stock No. 250-3933
  • Mfr. Part No. 1SDA054071R1
Each
TWD134,967.00(exc. GST)
In Stock
Better World
Siemens SENTRON Cover for use with 3VA1 400/630 and 3VA2 400/630
  • RS Stock No. 210-9402
  • Mfr. Part No. 3VA9481-0WF30
Each
TWD2,257.00(exc. GST)
In Stock
Phoenix Contact Surge Protector, 250V ac, DIN Rail Mount
  • RS Stock No. 801-6211
  • Mfr. Part No. 2950048
Each
TWD2,245.00(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB 3P 125A, Breaking Capacity 7 kA, Fixed Mount
  • RS Stock No. 147-675
  • Mfr. Part No. 3VA5212-5EF31-0AA0
Each
TWD48,418.00(exc. GST)
In Stock
SASY 60i Busbar
  • RS Stock No. 252-816
  • Mfr. Part No. 215270 CU15X5
Each
TWD1,652.00(exc. GST)
Temporarily out of stock
Siemens SIRIUS Adapter for use with Circuit Breaker
  • RS Stock No. 156-519
  • Mfr. Part No. 3RA2932-1AA00
Each
TWD1,200.00(exc. GST)
Temporarily out of stock
ABB Consumer Unit
  • RS Stock No. 183-3644
  • Mfr. Part No. 1SL2406A01
Each
TWD459.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 50A, Breaking Capacity 25 kA
  • RS Stock No. 209-6826
  • Mfr. Part No. 3VA1150-3ED42-0AA0
Each
TWD17,503.00(exc. GST)
Temporarily out of stock
ABB S803N MCB, 3P, 8A Curve B, 690V AC, 36 kA Breaking Capacity
  • RS Stock No. 140-908
  • Mfr. Part No. 2CCS893001R0085
Each
TWD19,272.00(exc. GST)
In Stock
Better World
ABB System Pro M Compact S200 MCB, 3P, 13A Curve C, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 746-7762
  • Mfr. Part No. 2CDS253001R0134 S203-C13
Each
TWD2,232.00(exc. GST)
Temporarily out of stock
Eaton AKU Enclosure for use with All 10 mm Thick Flat Busbars, Compact System, Feeder Circuits
  • RS Stock No. 244-151
  • Mfr. Part No. 138361 AKU-M10/10
1 Pack of 6
TWD4,962.00(exc. GST)
In Stock
Better World
Schneider Electric 220 → 240V ac Undervoltage Release Circuit Trip for use with C120 Series, C60 Series, ID
  • RS Stock No. 776-2926
  • Mfr. Part No. A9N26960
Each
TWD4,084.00(exc. GST)
In Stock
Schneider Electric Acti9 A9F MCB Mini Circuit Breaker, 2P, 16A Curve C, 500V AC, 10 kA Breaking Capacity
  • RS Stock No. 653-861
  • Mfr. Part No. A9F74216
Each
TWD2,967.00(exc. GST)
Temporarily out of stock
ABB 4 Way Steel Consumer Unit, 100A, IP30 Housemaster
  • RS Stock No. 453-980
  • Mfr. Part No. 1SKB106142C6001 HSRC 04C
Each
TWD8,542.00(exc. GST)
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