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

283 of 999+
Temporarily out of stock
Schneider Electric RCBO, 25A Current Rating, 1P Poles, Type C, Acti9 Range
  • RS Stock No. 245-084
  • Mfr. Part No. A9D05825
Each
TWD7,505.00(exc. GST)
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
TWD1,148,071.00(exc. GST)
Temporarily out of stock
Better World
Siemens RCBO, 13A Current Rating, 2P Poles, 300mA Trip Sensitivity, Sentron Range
  • RS Stock No. 225-8800
  • Mfr. Part No. 5SU1656-7KK13
Each
TWD5,524.00(exc. GST)
Temporarily out of stock
ABB RCBO, 13A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type B, System Pro M Compact Range
  • RS Stock No. 181-4367
  • Mfr. Part No. DS-ARC1 B13 A30
Each
TWD11,418.00(exc. GST)
Temporarily out of stock
Better World
Siemens SENTRON 5SY7 MCB, 4P, 25A Curve B, 400V AC, 72V DC, 5 kA Breaking Capacity
  • RS Stock No. 212-8976
  • Mfr. Part No. 5SY7425-6
Each
TWD7,323.00(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 70A, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 269-582
  • Mfr. Part No. 3VA5270-7ED41-0AA0
Each
TWD53,257.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 40A, Breaking Capacity 55 kA, Fixed Mount
  • RS Stock No. 210-1703
  • Mfr. Part No. 3VA2040-5HN32-0AA0
Each
TWD27,717.00(exc. GST)
Temporarily out of stock
ALPHA 630 DIN, Abdeckung Höhe=150mm, Bre
  • RS Stock No. 229-9875
  • Mfr. Part No. 8GK9601-1KK10
Each (In a Pack of 10)
TWD1,416.90(exc. GST)
Temporarily out of stock
ABB S301 MCB, 1P, 40A Curve D, 415V AC, 125V DC, 100 kA Breaking Capacity
  • RS Stock No. 204-447
  • Mfr. Part No. 2CDS381001R0401
Each
TWD4,924.00(exc. GST)
In Stock
Better World
ABB System Pro M Compact S200 MCB, 3P, 16A Curve B, 400V AC, 6 kA Breaking Capacity
  • RS Stock No. 746-7598
  • Mfr. Part No. 2CDS253001R0165 S203-B16
Each
TWD2,324.00(exc. GST)
Temporarily out of stock
ABB System Pro M Compact S200 M UC MCB, 2P, 63A Curve K, 400V AC, 440V DC, 10 kA Breaking Capacity
  • RS Stock No. 201-027
  • Mfr. Part No. 2CDS272061R0607
Each
TWD15,923.00(exc. GST)
Temporarily out of stock
Better World
ABB, XT2V MCCB 4P 50A, Fixed Mount
  • RS Stock No. 236-7446
  • Mfr. Part No. 1SDA067708R1 XT2V 160 TMA 50A FF
Each
TWD39,969.00(exc. GST)
Temporarily out of stock
Better World
Siemens RCBO, 6A Current Rating, 2P Poles, 30mA Trip Sensitivity, SENTRON Range
  • RS Stock No. 211-9607
  • Mfr. Part No. 5SU1354-4KK06
Each
TWD8,368.00(exc. GST)
In Stock
Schneider Electric Cable Connection Kit for use with ComPact NS630b → 1600 Circuit Breaker
  • RS Stock No. 247-1849
  • Mfr. Part No. 33640
Each
TWD10,196.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 160A, Breaking Capacity 55 kA, DIN Rail Mount
  • RS Stock No. 271-9785
  • Mfr. Part No. 3VA1116-5FD42-0AA0
Each
TWD45,338.00(exc. GST)
In Stock
Schneider Electric Acti9 iID RCCB, 100A, 2 Pole, 300mA, Type AC, 220 → 240V ac
  • RS Stock No. 110-232
  • Mfr. Part No. A9R15291
Each
TWD58,228.00(exc. GST)
In Stock
Schurter TA36 Rocker Circuit Breaker - TA36 2 Pole 60 V dc, 277 V ac Voltage Rating, 15A Current Rating
  • RS Stock No. 221-5609
  • Mfr. Part No. 3-128-217
1 Box of 10
TWD6,134.00(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 2kA 1SDA07, 3 channels
  • RS Stock No. 259-4312
  • Mfr. Part No. 1SDA072456R1
Each
TWD511,138.00(exc. GST)
Temporarily out of stock
Eaton Eaton Moeller xPole 4 Phase Busbar, 415V
  • RS Stock No. 257-772
  • Mfr. Part No. 291476 EVG-16/4PHAS/12MODUL
Each
TWD989.00(exc. GST)
Temporarily out of stock
Eaton Distribution Parts 1 Phase Busbar, 400V
  • RS Stock No. 256-041
  • Mfr. Part No. 263965 ZV-KSBI-5TE
Each
TWD145.00(exc. GST)
1
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