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

196 of 999+
Siemens SENTRON Interlock Kit for use with 3VA12
  • RS Stock No. 152-781
  • Mfr. Part No. 3VA9257-0VF10
Each
TWD3,516.00(exc. GST)
Better World
Siemens, SENTRON MCCB 4P 63A, Breaking Capacity 55 kA, Fixed Mount
  • RS Stock No. 211-3791
  • Mfr. Part No. 3VA2163-5HL46-0AA0
Each
TWD34,965.00(exc. GST)
Better World
Siemens, Sentron MCCB Molded Case Circuit Breaker 4P 40A, Breaking Capacity 2.5 kA
  • RS Stock No. 245-397
  • Mfr. Part No. 3VA6140-8HL41-2AA0
Each
TWD57,855.00(exc. GST)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 50A, Breaking Capacity 6 kA, Fixed Mount
  • RS Stock No. 259-065
  • Mfr. Part No. 271393 NZMC1-A50
Each
TWD13,448.00(exc. GST)
Sensata Airpax Airpax Thermal Circuit Breaker - LELBXK11 2 Pole Panel Mount, 35A Current Rating
  • RS Stock No. 275-0363
  • Mfr. Part No. LELBXK11-1-62-35.0-Z-M6-V
Each
TWD5,247.00(exc. GST)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 4P 800A, Breaking Capacity 15 kA, Fixed Mount
  • RS Stock No. 253-849
  • Mfr. Part No. 265976 NZMN4-4-VE800/500
Each
TWD226,324.00(exc. GST)
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 800A, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 250-074
  • Mfr. Part No. 3VA6580-7KQ32-0AA0
Each
TWD280,079.00(exc. GST)
Schneider Electric, ComPacT NSX MCCB 3P 25A, Fixed Mount
  • RS Stock No. 254-6273
  • Mfr. Part No. C103TM025
Each
TWD8,672.00(exc. GST)
Schneider Electric, ComPacT MCCB 3P 160A, Fixed Mount
  • RS Stock No. 260-8040
  • Mfr. Part No. C25W36E160
Each
TWD172,760.00(exc. GST)
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)
Schneider Electric, ComPacT MCCB 3P 100A, Fixed Mount
  • RS Stock No. 260-9396
  • Mfr. Part No. C10B3
Each
TWD11,612.00(exc. GST)
Eaton Undervoltage Release
  • RS Stock No. 282-7113
  • Mfr. Part No. 259527 NZM2/3-XUV
Each
TWD6,041.00(exc. GST)
Eaton xEffect MCB, 3+N, 8A Curve B
  • RS Stock No. 230-0923
  • Mfr. Part No. 177455 FAZ6-B8/3N
Each
TWD2,635.00(exc. GST)
Eaton 24V ac/dc Shunt Trip Shunt trip for use with N(S)2(-4) Series, N(S)3(-4) Series, NZM2(-4) Series, NZM3(-4) Series
  • RS Stock No. 537-5652
  • Mfr. Part No. 259754 NZM2/3-XA24AC/DC
Each
TWD3,731.00(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)
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 1P 25A, Breaking Capacity 25 kA, DIN Rail Mount
  • RS Stock No. 271-9842
  • Mfr. Part No. 3VA1125-3ED12-0AA0
Each
TWD6,467.00(exc. GST)
Eaton xEnergy Main Distribution Board
  • RS Stock No. 259-282
  • Mfr. Part No. 285504 XPNBCT0604
Each
TWD3,387.00(exc. GST)
Better World
Schneider Electric Acti 9 3 Phase Busbar, 415V ac, 18mm Pitch
  • RS Stock No. 776-2742
  • Mfr. Part No. A9XPH412
Each
TWD1,209.00(exc. GST)
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