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

217 of 999+
Schneider Electric EasyPact Electronic Circuit Breaker 100A, Fixed
  • RS Stock No. 122-370
  • Mfr. Part No. LV510507
Each
TWD5,006.00(exc. GST)
ABB Emax2 Electronic Circuit Breaker 630A Ekip Touch LI, 4 channels
  • RS Stock No. 259-3410
  • Mfr. Part No. 1SDA071344R1
Each
TWD215,083.00(exc. GST)
Better World
Siemens SENTRON 5SY7 MCB, 4P, 13A Curve C, 400V AC, 72V DC, 5 kA Breaking Capacity
  • RS Stock No. 213-1093
  • Mfr. Part No. 5SY7413-7
Each
TWD7,171.00(exc. GST)
Eaton Eaton Moeller NZM Undervoltage Release for use with PXR20(25) NZM2(-4), PXR20(25) NZM3(-4)
  • RS Stock No. 242-980
  • Mfr. Part No. 189733 NZM2/3-XUHIV2A24DC
Each
TWD9,234.00(exc. GST)
Better World
ABB System Pro M Compact S200 MCB, 3P, 16A Curve K, 440V AC, 20 kA Breaking Capacity
  • RS Stock No. 514-0226
  • Mfr. Part No. 2CDS253001R0467 S203-K16
Each
TWD3,214.00(exc. GST)
Eaton Undervoltage Release
  • RS Stock No. 282-7113
  • Mfr. Part No. 259527 NZM2/3-XUV
Each
TWD6,041.00(exc. GST)
Schneider Electric, ComPacT NSX Circuit breaker 1P 50A, Breaking Capacity 25 KA
  • RS Stock No. 119-288
  • Mfr. Part No. C10N1TM050
Each
TWD21,473.00(exc. GST)
ABB Emax2 Electronic Circuit Breaker 4kA Ekip Touch LSIG, 3 channels
  • RS Stock No. 259-4416
  • Mfr. Part No. 1SDA072596R1
Each
TWD1,227,405.00(exc. GST)
ABB S801S MCB, 1P, 40A, UC-K, 250V DC, 50 kA Breaking Capacity
  • RS Stock No. 140-630
  • Mfr. Part No. 2CCS861001R1557
Each
TWD14,539.00(exc. GST)
Schneider Electric, ComPacT MCCB 3P 160A, Fixed Mount
  • RS Stock No. 260-7915
  • Mfr. Part No. C25H3TM160
Each
TWD69,538.00(exc. GST)
Hager CDB RCCB, 40A, 4 Pole, 30mA, Type B, 230 → 400V ac
  • RS Stock No. 597-921
  • Mfr. Part No. CDB440F
Each
TWD44,362.00(exc. GST)
Better World
Siemens, Sentron MCCB Molded Case Circuit Breaker 4P 100A, Breaking Capacity 3 kA
  • RS Stock No. 245-485
  • Mfr. Part No. 3VA6210-5KT41-0AA0
Each
TWD144,982.00(exc. GST)
Schneider Electric, ComPacT MCCB 4P 160A, Fixed Mount
  • RS Stock No. 260-7925
  • Mfr. Part No. C25H4TM160
Each
TWD90,666.00(exc. GST)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 700A, Breaking Capacity 37 kA, Fixed Mount
  • RS Stock No. 258-793
  • Mfr. Part No. 271115 NZMH4-AEF700-NA
Each
TWD197,741.00(exc. GST)
Better World
Schneider Electric Compact Nsx Power Connection for use with Compact Nsx400/630
  • RS Stock No. 221-1243
  • Mfr. Part No. LV432519
Each
TWD5,155.00(exc. GST)
Better World
Schneider Electric Multi 9 C60SP MCB, 3P, 6A Curve C, 440V AC, 15 kA Breaking Capacity
  • RS Stock No. 211-2373
  • Mfr. Part No. M9F22306
Each
TWD5,218.00(exc. GST)
Better World
Schneider Electric Acti9 iID RCCB, 40A, 4 Pole, 30mA, 400V
  • RS Stock No. 218-3909
  • Mfr. Part No. A9Z51440
Each
TWD32,703.00(exc. GST)
Better World
Schneider Electric Acti 9 Acti9 iDT40T MCB, 1+N, 16A Curve C, 230V AC, 6 kA Breaking Capacity
  • RS Stock No. 191-6089
  • Mfr. Part No. A9P22616
Each
TWD1,050.00(exc. GST)
Schneider Electric, PowerPact Circuit breaker 4P 15A, Breaking Capacity 100 kA, Clip-On
  • RS Stock No. 438-820
  • Mfr. Part No. BJL46015LU
Each
TWD63,016.00(exc. GST)
Eaton xEffect FAZ MCB, 1P, 2.5A Curve B, 230V AC, 48V DC, 10 kA Breaking Capacity
  • RS Stock No. 259-177
  • Mfr. Part No. 278524 FAZ-B2,5/1
Each
TWD981.00(exc. GST)
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