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

214 of 999+
Temporarily out of stock
ABB Tmax XT Front Terminal for use with Tmax XT
  • RS Stock No. 237-6277
  • Mfr. Part No. 1SDA067201R1 FC CuAl 2x150 XT4 6PCS
Each
TWD6,445.00(exc. GST)
Temporarily out of stock
Better World
Siemens SENTRON 5SY6 MCB, 3+N, 63A Curve C, 400V AC, 72V DC, 6 kA Breaking Capacity
  • RS Stock No. 209-6033
  • Mfr. Part No. 5SY6663-7
Each
TWD13,430.00(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 5kA Ekip G Touch LSIG, 3 channels
  • RS Stock No. 259-3351
  • Mfr. Part No. 1SDA071267R1
Each
TWD1,461,839.00(exc. GST)
Temporarily out of stock
Eaton xEnergy Safety Ci Distribution Board Enclosure, 1 Way, 250 A
  • RS Stock No. 251-464
  • Mfr. Part No. 194577 CI44-S60-250/3-1XNH1
Each
TWD26,744.00(exc. GST)
Temporarily out of stock
Eaton xEffect FAZ MCB, 4P, 13A Curve K, 400V AC, 60V DC, 7.5 kA Breaking Capacity
  • RS Stock No. 259-140
  • Mfr. Part No. 279098 FAZ-K13/4
Each
TWD7,778.00(exc. GST)
Temporarily out of stock
Eaton Enclosure for use with Circuit Breakers, Switch Disconnectors
  • RS Stock No. 103-800
  • Mfr. Part No. 138538 MCCB1-63/I23E-150
Each
TWD9,561.00(exc. GST)
In Stock
ETA Thermal Circuit Breaker - 1658 Single Pole 250V Voltage Rating Panel Mount, 5A Current Rating
  • RS Stock No. 273-0854
  • Mfr. Part No. 1658-G21-02-P10-5A
Each
TWD223.00(exc. GST)
Temporarily out of stock
Eaton RCBO, 16A Current Rating, 1+N Poles, 300mA Trip Sensitivity, Type C, xEffect Range
  • RS Stock No. 252-278
  • Mfr. Part No. 193498 FRBmM-C16/1N/03-F
Each
TWD8,276.00(exc. GST)
Temporarily out of stock
ABB RCBO, 10A Current Rating, 4P Poles, Type B
  • RS Stock No. 237-5206
  • Mfr. Part No. 2CSR274101R1105
Each
TWD14,672.00(exc. GST)
Temporarily out of stock
Eaton Eaton xEnergy Main Busbar Support for use with Busbar
  • RS Stock No. 258-890
  • Mfr. Part No. 284749 XBSN32
Each
TWD2,824.00(exc. GST)
Temporarily out of stock
Better World
Siemens, Sentron MCCB Molded Case Circuit Breaker 3P 40A, Breaking Capacity 2.5 kA
  • RS Stock No. 245-532
  • Mfr. Part No. 3VA6140-8JQ31-0AA0
Each
TWD91,572.00(exc. GST)
In Stock
Better World
Schneider Electric Acti 9 A9F9 MCB, 1P, 1A, Type Z, 230V AC, 72V DC, 20 kA, 15 kA Breaking Capacity
  • RS Stock No. 211-2482
  • Mfr. Part No. A9F92101
Each
TWD1,909.00(exc. GST)
Temporarily out of stock
Siemens ALPHA Distribution Board
  • RS Stock No. 272-0329
  • Mfr. Part No. 8GK1082-3KK21
Each
TWD31,989.00(exc. GST)
Temporarily out of stock
ABB MCCB Molded Case Circuit Breaker 3P+N 320A, Fixed Mount
  • RS Stock No. 250-4170
  • Mfr. Part No. 1SDA054442R1
Each
TWD176,287.00(exc. GST)
Temporarily out of stock
Schneider Electric PowerPact Thermal Magnetic Circuit Breaker - PowerPacT 3 Pole 525V Voltage Rating Clip-On, 90A
  • RS Stock No. 357-742
  • Mfr. Part No. BGL36090LU
Each
TWD42,420.00(exc. GST)
Temporarily out of stock
Eaton xEffect FAZ MCB, 3+N, 12A Curve B, 440V AC, 60V DC, 7.5 kA Breaking Capacity
  • RS Stock No. 254-196
  • Mfr. Part No. 241090 FAZT-B12/3N
Each
TWD7,969.00(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 150A, Fixed Mount
  • RS Stock No. 260-7970
  • Mfr. Part No. C25R3MA150
Each
TWD87,271.00(exc. GST)
Temporarily out of stock
Eaton Eaton Distribution Parts Busbar Connector
  • RS Stock No. 253-565
  • Mfr. Part No. 263954 ZV-L2/L3-80A-36
1 Pack of 36
TWD980.00(exc. GST)
In Stock
RS PRO Thermal Circuit Breaker - 32 V dc, 240V ac Voltage Rating Snap In, 6A Current Rating
  • RS Stock No. 774-0017
Each
TWD242.00(exc. GST)
In Stock
Eaton RCD, 63A, 2 Pole, 30mA, Type AC, 230V
  • RS Stock No. 922-8617
  • Mfr. Part No. 235398 PFIM-63/2/003-MW
Each
TWD5,918.00(exc. GST)
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