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

190 of 999+
Lovato ModuLo P2MB MCB, 3P, 125A Curve C, 230V AC, 60V DC, 10 kA Breaking Capacity
  • RS Stock No. 825-6172
  • Mfr. Part No. P2MB3PC125
Each
TWD7,709.00(exc. GST)
Eaton, Moeller Series NZM MCCB Molded Case Circuit Breaker 3P
  • RS Stock No. 255-158
  • Mfr. Part No. 259834 NZM2-XR380-440AC
Each
TWD40,920.00(exc. GST)
Siemens Sirius Innovation Wiring Kit for use with Actuating Voltage Contactor
  • RS Stock No. 875-1037
  • Mfr. Part No. 3RA2933-2BB1
Each
TWD4,389.00(exc. GST)
Eaton xEffect MCB, 2P, 4A Curve B, 240 → 415V AC, 96V DC, 10 kA Breaking Capacity
  • RS Stock No. 922-7100
  • Mfr. Part No. 278726 FAZ-B4/2
Each
TWD2,877.00(exc. GST)
Eaton xPole - PXL PXL MCB, 4P, 32A Curve D, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 255-763
  • Mfr. Part No. 236662 PXL-D32/4
Each
TWD7,893.00(exc. GST)
Hager BFF RCCB, 63A, 2 Pole, 300mA, Type F
  • RS Stock No. 602-061
  • Mfr. Part No. BFF263
Each
TWD21,604.00(exc. GST)
Better World
Siemens, SENTRON MCCB 3P 32A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 874-4269
  • Mfr. Part No. 3VA1132-3EE36-0AA0
Each
TWD13,640.00(exc. GST)
Better World
Schneider Electric Acti 9 Acti9 iDT40N MCB, 3P, 40A Curve D, 400V AC
  • RS Stock No. 239-9973
  • Mfr. Part No. A9P34340
Each
TWD8,853.00(exc. GST)
Schneider Electric Connection Unit for use with ComPact NS630b → 1600 Circuit Breaker, ComPact NS630b →
  • RS Stock No. 247-1846
  • Mfr. Part No. 33609
Each
TWD5,822.00(exc. GST)
ETA Thermal Circuit Breaker - 3120-N 2 Pole 50 V DC, 240 V AC Voltage Rating, 2A Current Rating
  • RS Stock No. 210-2073
  • Mfr. Part No. 3120-N521-H7T1-W01D-2A-U0000M
Each
TWD2,641.00(exc. GST)
Siemens SENTRON 5SJ4 MCB, 1P, 10A Curve C, 400V AC, 60V DC, 10 kA Breaking Capacity
  • RS Stock No. 213-1028
  • Mfr. Part No. 5SJ4110-7HG42
Each
TWD2,303.00(exc. GST)
Schneider Electric, ComPacT MCCB 3P 1.6kA, Breaking Capacity 42 kA, Fixed Mount
  • RS Stock No. 347-099
  • Mfr. Part No. C160H320FM
Each
TWD527,256.00(exc. GST)
Better World
Siemens, SENTRON MCCB 3P 32A, Breaking Capacity 55 kA
  • RS Stock No. 209-6803
  • Mfr. Part No. 3VA1132-5EF32-0AA0
Each
TWD16,507.00(exc. GST)
ABB SMISSLINE TP MCB, 2P, 8A, Type Z, 440V AC
  • RS Stock No. 246-2612
  • Mfr. Part No. 2CCS572001R1088
Each
TWD6,992.00(exc. GST)
ABB Tmax XT Plate for use with Tmax XT
  • RS Stock No. 237-6136
  • Mfr. Part No. 1SDA066676R1 4PCS XT1-XT3 3P
Each
TWD578.00(exc. GST)
Eaton xEffect MCB, 3+N, 32A Curve B
  • RS Stock No. 230-0911
  • Mfr. Part No. 239161 FAZ6-B32/3N
Each
TWD3,029.00(exc. GST)
Siemens SENTRON Locking Kit
  • RS Stock No. 277-0869
  • Mfr. Part No. 3WA9111-0BA83
Each
TWD30,697.00(exc. GST)
Better World
ABB, XT4S MCCB 4P 200A, Breaking Capacity 85 kA, Fixed Mount
  • RS Stock No. 236-6696
  • Mfr. Part No. 1SDA068329R1 XT4S 250 TMA 200A FF
Each
TWD37,436.00(exc. GST)
ABB Emax2 Electronic Circuit Breaker 1.25kA 1SDA07, 4 channels
  • RS Stock No. 259-3628
  • Mfr. Part No. 1SDA071603R1
Each
TWD365,098.00(exc. GST)
ABB Emax2 Electronic Circuit Breaker 4kA Ekip Touch LI, 3 channels
  • RS Stock No. 259-3327
  • Mfr. Part No. 1SDA071234R1
Each
TWD845,655.00(exc. GST)
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