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

1740 of 999+
Better World
Siemens, SENTRON MCCB 3P 80A, Breaking Capacity 55 kA
  • RS Stock No. 209-7015
  • Mfr. Part No. 3VA1180-5EF32-0AA0
Each
TWD18,872.00(exc. GST)
Better World
Schneider Electric RCBO, 25A Current Rating, 3P+N Poles, 30mA Trip Sensitivity, Type C, Acti9 Range
  • RS Stock No. 239-9967
  • Mfr. Part No. A9DX3725
Each
TWD22,842.00(exc. GST)
Eaton xEffect MCB, 3P, 40A Curve C, 240 → 415V AC, 10 kA Breaking Capacity
  • RS Stock No. 847-3374
  • Mfr. Part No. 278877 FAZ-C40/3
Each
TWD3,277.00(exc. GST)
Better World
Siemens SENTRON 5SY4 MCB, 1P, 10A, Type A, 10 kA Breaking Capacity
  • RS Stock No. 202-7101
  • Mfr. Part No. 5SY4110-5
Each
TWD2,035.00(exc. GST)
Better World
Siemens, SENTRON MCCB 4P 40A, Breaking Capacity 85 kA, Fixed Mount
  • RS Stock No. 270-3744
  • Mfr. Part No. 3VA2040-6HM42-0AA0
Each
TWD108,869.00(exc. GST)
Lovato RCBO, 25A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type C, P1 Range
  • RS Stock No. 277-5059
  • Mfr. Part No. P1RE1NC25AC030
Each
TWD4,341.00(exc. GST)
Better World
Siemens, SENTRON MCCB 4P 125A, Breaking Capacity 70 kA, Fixed Mount
  • RS Stock No. 209-4904
  • Mfr. Part No. 3VA1112-6EE46-0AA0
Each
TWD38,570.00(exc. GST)
Better World
ABB, Tmax XT MCCB 3P 25A, Fixed Mount
  • RS Stock No. 236-6584
  • Mfr. Part No. 1SDA068081R1 XT4N 160 TMD 25A FF
Each
TWD18,399.00(exc. GST)
ABB MCCB Molded Case Circuit Breaker 4P 320A, Fixed Mount
  • RS Stock No. 250-4094
  • Mfr. Part No. 1SDA054362R1
Each
TWD193,552.00(exc. GST)
Eaton Eaton Moeller NZM Undervoltage Release for use with N2(-4), N3(-4), NZM2(-4), NZM3(-4)
  • RS Stock No. 254-788
  • Mfr. Part No. 259604 NZM2/3-XUHIV48DC
Each
TWD7,778.00(exc. GST)
ABB Tmax XT Interlock Kit for use with Tmax XT
  • RS Stock No. 237-6125
  • Mfr. Part No. 1SDA066637R1 MIR-HR XT1..XT4
1 Box of 1
TWD6,500.00(exc. GST)
Lovato RCBO, 6A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type C, P1 Range
  • RS Stock No. 277-5051
  • Mfr. Part No. P1RE1NC06AC030
Each
TWD3,946.00(exc. GST)
Siemens ALPHA Cover Frame for use with N/PE Busbar Support
  • RS Stock No. 629-365
  • Mfr. Part No. 8GK4854-0KK50
Each
TWD2,109.00(exc. GST)
Better World
Siemens RCBO, 10A Current Rating, 2P Poles, 10mA Trip Sensitivity, Type A, SENTRON Range
  • RS Stock No. 241-4441
  • Mfr. Part No. 5SU1154-6KK10
Each
TWD6,372.00(exc. GST)
Eaton xEffect FAZ MCB, 3P, 35A Curve C, 415V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 243-546
  • Mfr. Part No. 102295 FAZ-C35/3-RT
Each
TWD8,774.00(exc. GST)
Schneider Electric Acti 9 MCB, 4P, 32A Curve C
  • RS Stock No. 247-1651
  • Mfr. Part No. 18653
Each
TWD17,202.00(exc. GST)
ETA Thermal Circuit Breaker - 3120-N 2 Pole 50 V DC, 240 V AC Voltage Rating, 12A Current Rating
  • RS Stock No. 210-2078
  • Mfr. Part No. 3120-N526-P7T1-W01D-12A-A04011211M
Each
TWD2,142.00(exc. GST)
ABB RCBO, 16A Current Rating, 4P Poles, Type C
  • RS Stock No. 237-5117
  • Mfr. Part No. 2CSR254101R1164
Each
TWD14,545.00(exc. GST)
Better World
ABB Emax2 Electronic Circuit Breaker 800A Ekip Touch LSIG, 3 channels
  • RS Stock No. 259-9909
  • Mfr. Part No. 1SDA070756R1
Each
TWD211,362.00(exc. GST)
Eaton xEffect - FRCmM RCCB, 25A, 4 Pole, 100mA, 240/415V ac
  • RS Stock No. 123-568
  • Mfr. Part No. 170300 FRCMM-25/4/01-G/A
Each
TWD11,284.00(exc. GST)
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