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

1785 of 999+
Temporarily out of stock
Siemens 230V ac Circuit Trip
  • RS Stock No. 213-2453
  • Mfr. Part No. 5TT4121-0
Each
TWD2,412.00(exc. GST)
Temporarily out of stock
Better World
Siemens Sentron 5SY4 MCB, 4P, 1A Curve D, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 124-3184
  • Mfr. Part No. 5SY4401-8
Each
TWD7,016.00(exc. GST)
Temporarily out of stock
Eaton RCBO, 10A Current Rating, 2P Poles, 10mA Trip Sensitivity, Type A, Type C, FRBdM Range
  • RS Stock No. 121-250
  • Mfr. Part No. 168253 FRBDM-C10/1N/001-G/A
Each
TWD7,263.00(exc. GST)
Temporarily out of stock
Eaton xComfort KLV Distribution Board Enclosure
  • RS Stock No. 124-778
  • Mfr. Part No. 178807 KLV-12HWP-SF
Each
TWD5,498.00(exc. GST)
Temporarily out of stock
Siemens ALPHA Distribution Board
  • RS Stock No. 272-0262
  • Mfr. Part No. 8GK1051-1KK20
Each
TWD24,010.00(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 630A Ekip Hi-Touch LSI, 4 channels
  • RS Stock No. 259-4487
  • Mfr. Part No. 1SDA072698R1
Each
TWD290,252.00(exc. GST)
Temporarily out of stock
Contactum 6 Way Steel Consumer Unit, 100A Defender
  • RS Stock No. 184-9120
  • Mfr. Part No. DDS06188MS
Each
TWD5,396.00(exc. GST)
In Stock
ABB RCBO, 50A Current Rating, 4P Poles, Type B
  • RS Stock No. 237-5200
  • Mfr. Part No. 2CSR274001R1505
Each
TWD15,582.00(exc. GST)
Temporarily out of stock
Eaton RCCB, 40A, 4 Pole, 300mA, Type S, 230 V ac, 400 V ac
  • RS Stock No. 227-0733
  • Mfr. Part No. 264305 PFGM-40/4/03-S
Each
TWD13,176.00(exc. GST)
Temporarily out of stock
Siemens ALPHA Distribution Board
  • RS Stock No. 272-0256
  • Mfr. Part No. 8GK1031-4KK30
Each
TWD27,392.00(exc. GST)
Temporarily out of stock
ABB Tmax XT Key Lock for use with Tmax XT
  • RS Stock No. 237-6100
  • Mfr. Part No. 1SDA066594R1 KLC XT1 RONIS TYPE A
Each
TWD3,729.00(exc. GST)
Temporarily out of stock
Better World
Siemens RCBO, 6A Current Rating, 2P Poles, 300mA Trip Sensitivity, Sentron Range
  • RS Stock No. 225-8824
  • Mfr. Part No. 5SV1616-6KK06
Each
TWD5,661.00(exc. GST)
Limited stock
ETA Thermal Circuit Breaker - 3120-N 5 Pole 50 V DC, 240 V AC Voltage Rating, 5A Current Rating
  • RS Stock No. 210-2105
  • Mfr. Part No. 3120-N551-H7T1-W19DG4-5A
Each
TWD1,094.00(exc. GST)
In Stock
Lovato ModuLo P1MB MCB, 2P, 40A Curve B, 230V AC, 80V DC, 10 kA Breaking Capacity
  • RS Stock No. 825-5696
  • Mfr. Part No. P1MB2PB40
Each
TWD1,563.00(exc. GST)
Temporarily out of stock
Better World
Schneider Electric 230V ac Overload Release Circuit Trip for use with C120 Series, C60 Series, ID Residual Current
  • RS Stock No. 776-2938
  • Mfr. Part No. A9N26500
Each
TWD8,452.00(exc. GST)
Temporarily out of stock
HENSEL ENYSTAR Distribution Board, 63 A
  • RS Stock No. 117-006
  • Mfr. Part No. KV 8118
Each
TWD4,926.00(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 800A, Breaking Capacity 65 kA, Fixed Mount
  • RS Stock No. 250-142
  • Mfr. Part No. 3VA6580-6HM42-2AA0
Each
TWD298,853.00(exc. GST)
Temporarily out of stock
HENSEL ENYSTAR Distribution Board, 6 Way, 63 A
  • RS Stock No. 117-248
  • Mfr. Part No. FP VN 0612 GB
Each
TWD55,525.00(exc. GST)
Temporarily out of stock
Siemens ALPHA Distribution Board
  • RS Stock No. 272-0294
  • Mfr. Part No. 8GK1062-1KK21
Each
TWD25,568.00(exc. GST)
Temporarily out of stock
HENSEL ENYBOARD Distribution Board, 63 A
  • RS Stock No. 117-387
  • Mfr. Part No. KV 1518 M
Each
TWD4,584.00(exc. GST)
1
1785
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