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

215 of 999+
Schneider Electric 1 Phase Distribution Board, 2 Way, 63 A
  • RS Stock No. 301-8600
  • Mfr. Part No. 13392
Each
TWD291.00(exc. GST)
Better World
ABB Emax2 Electronic Circuit Breaker 1.6kA Ekip Hi-Touch LSI, 3 channels
  • RS Stock No. 259-3153
  • Mfr. Part No. 1SDA071008R1
Each
TWD404,138.00(exc. GST)
Eaton NZM Circuit Breaker for use with Circuit Breaker
  • RS Stock No. 251-127
  • Mfr. Part No. 192356 NZMN3-PX630
Each
TWD140,811.00(exc. GST)
Eaton Eaton Moeller NZM Assembly Kit for use with N(S)1(-4), NZM1(-4), PN1(-4)
  • RS Stock No. 254-009
  • Mfr. Part No. 266641 NZM1-XS-L
Each
TWD6,130.00(exc. GST)
Schneider Electric, ComPacT MCCB 3P 220A, Fixed Mount
  • RS Stock No. 260-8010
  • Mfr. Part No. C25V3MA220
Each
TWD101,438.00(exc. GST)
ABB Emax2 Electronic Circuit Breaker 800A 1SDA07, 4 channels
  • RS Stock No. 259-3562
  • Mfr. Part No. 1SDA071540R1
Each
TWD488,004.00(exc. GST)
Eaton xPole - PXL PXL MCB, 1P, 1A Curve B, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 256-261
  • Mfr. Part No. 236105 PXL-B1/1N
Each
TWD2,000.00(exc. GST)
Siemens SENTRON Connection Unit for use with 3VA2 100/160/250
  • RS Stock No. 269-7172
  • Mfr. Part No. 3VA9264-0QD00
Each (In a Pack of 4)
TWD752.30(exc. GST)
Siemens ALPHA Distribution Board
  • RS Stock No. 272-0286
  • Mfr. Part No. 8GK1061-4KK10
Each
TWD23,744.00(exc. GST)
ABB Emax2 Electronic Circuit Breaker 1kA Ekip Hi-Touch LSI, 4 channels
  • RS Stock No. 259-4542
  • Mfr. Part No. 1SDA072778R1
Each
TWD317,043.00(exc. GST)
Schneider Electric, PowerPact MCCB 3P 600A, Breaking Capacity 18 kA, DIN Rail Mount
  • RS Stock No. 428-712
  • Mfr. Part No. NLLL36600U53X
Each
TWD807,783.00(exc. GST)
Eaton xPole MCB, 1P, 16A Curve B, 48V DC, 10 kA Breaking Capacity
  • RS Stock No. 864-4295
  • Mfr. Part No. 242180 PLSM-B16-MW
Each
TWD764.00(exc. GST)
Eaton Moeller NZM MCCB Molded Case Circuit Breaker 4P 160A, Breaking Capacity 18.5 kA, Fixed Mount
  • RS Stock No. 256-075
  • Mfr. Part No. 265850 NZMB2-4-A160/100
Each
TWD46,475.00(exc. GST)
Better World
Siemens, Sentron MCCB Molded Case Circuit Breaker 4P 40A, Breaking Capacity 2.5 kA
  • RS Stock No. 245-330
  • Mfr. Part No. 3VA6140-7KP41-0AA0
Each
TWD90,805.00(exc. GST)
Schneider Electric PowerPact Thermal Magnetic Circuit Breaker - PowerPacT 4 Pole 690V Voltage Rating Clip-On, 100A
  • RS Stock No. 357-332
  • Mfr. Part No. BJL46100LU
Each
TWD66,779.00(exc. GST)
Siemens SENTRON 5SY7 MCB, 2P, 25A Curve D, 400V AC, 60V DC, 25 kA Breaking Capacity
  • RS Stock No. 610-538
  • Mfr. Part No. 5SY7225-8
Each
TWD4,979.00(exc. GST)
ABB Emax2 Electronic Circuit Breaker 2.5kA 1SDA07, 4 channels
  • RS Stock No. 259-3738
  • Mfr. Part No. 1SDA071713R1
Each
TWD627,535.00(exc. GST)
Better World
ABB Emax2 Electronic Circuit Breaker 2kA 1SDA07, 3 channels
  • RS Stock No. 259-3178
  • Mfr. Part No. 1SDA071042R1
Each
TWD362,206.00(exc. GST)
Eaton xComfort Distribution Board Enclosure, 5 Way
  • RS Stock No. 256-889
  • Mfr. Part No. 281696 BC-U-1/5-TW-ECO
Each
TWD943.00(exc. GST)
Schneider Electric, ComPacT MCCB 4P 800A, Breaking Capacity 30 kA, Fixed Mount
  • RS Stock No. 429-064
  • Mfr. Part No. C080N45EFM
Each
TWD437,190.00(exc. GST)
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